From 5509ef67303259ece50e615f118e1966e1774962 Mon Sep 17 00:00:00 2001
From: schneider <schneider@blinkenlichts.net>
Date: Sun, 19 May 2019 01:21:12 +0200
Subject: [PATCH] feat(freertos): Add hello world demo
---
Hello_World_FreeRTOS/.cproject | 111 +++++
Hello_World_FreeRTOS/.gdbinit | 3 +
Hello_World_FreeRTOS/.project | 26 ++
.../.settings/language.settings.xml | 10 +
Hello_World_FreeRTOS/CLI-commands.c | 371 +++++++++++++++
Hello_World_FreeRTOS/FreeRTOSConfig.h | 120 +++++
Hello_World_FreeRTOS/Makefile | 153 +++++++
Hello_World_FreeRTOS/build_image | 5 +
Hello_World_FreeRTOS/freertos_tickless.c | 197 ++++++++
Hello_World_FreeRTOS/main.c | 427 ++++++++++++++++++
10 files changed, 1423 insertions(+)
create mode 100644 Hello_World_FreeRTOS/.cproject
create mode 100644 Hello_World_FreeRTOS/.gdbinit
create mode 100644 Hello_World_FreeRTOS/.project
create mode 100644 Hello_World_FreeRTOS/.settings/language.settings.xml
create mode 100644 Hello_World_FreeRTOS/CLI-commands.c
create mode 100644 Hello_World_FreeRTOS/FreeRTOSConfig.h
create mode 100644 Hello_World_FreeRTOS/Makefile
create mode 100755 Hello_World_FreeRTOS/build_image
create mode 100644 Hello_World_FreeRTOS/freertos_tickless.c
create mode 100644 Hello_World_FreeRTOS/main.c
diff --git a/Hello_World_FreeRTOS/.cproject b/Hello_World_FreeRTOS/.cproject
new file mode 100644
index 00000000..b8312be2
--- /dev/null
+++ b/Hello_World_FreeRTOS/.cproject
@@ -0,0 +1,111 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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+ <listOptionValue builtIn="false" value=""${MAXIM_PATH}/Firmware/MAX32665/Libraries/CMSIS/Device/Maxim/MAX32665/Include""/>
+ <listOptionValue builtIn="false" value=""${MAXIM_PATH}/Firmware/MAX32665/Libraries/MAX32665PeriphDriver/Include""/>
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+ <storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
+ </cconfiguration>
+ </storageModule>
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+ </storageModule>
+ <storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
+ <storageModule moduleId="refreshScope" versionNumber="2">
+ <configuration configurationName="Debug">
+ <resource resourceType="PROJECT" workspacePath="/FreeRTOSDemo"/>
+ </configuration>
+ </storageModule>
+ <storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
+</cproject>
diff --git a/Hello_World_FreeRTOS/.gdbinit b/Hello_World_FreeRTOS/.gdbinit
new file mode 100644
index 00000000..85b92cf7
--- /dev/null
+++ b/Hello_World_FreeRTOS/.gdbinit
@@ -0,0 +1,3 @@
+file build/max32665.elf
+target remote localhost:3333
+
diff --git a/Hello_World_FreeRTOS/.project b/Hello_World_FreeRTOS/.project
new file mode 100644
index 00000000..c2534f42
--- /dev/null
+++ b/Hello_World_FreeRTOS/.project
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+ <name>FreeRTOSDemo</name>
+ <comment></comment>
+ <projects>
+ </projects>
+ <buildSpec>
+ <buildCommand>
+ <name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
+ <triggers>clean,full,incremental,</triggers>
+ <arguments>
+ </arguments>
+ </buildCommand>
+ <buildCommand>
+ <name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
+ <triggers>full,incremental,</triggers>
+ <arguments>
+ </arguments>
+ </buildCommand>
+ </buildSpec>
+ <natures>
+ <nature>org.eclipse.cdt.core.cnature</nature>
+ <nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
+ <nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
+ </natures>
+</projectDescription>
diff --git a/Hello_World_FreeRTOS/.settings/language.settings.xml b/Hello_World_FreeRTOS/.settings/language.settings.xml
new file mode 100644
index 00000000..e5a16476
--- /dev/null
+++ b/Hello_World_FreeRTOS/.settings/language.settings.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<project>
+ <configuration id="ilg.gnuarmeclipse.managedbuild.cross.config.elf.debug.1674944962" name="Debug">
+ <extension point="org.eclipse.cdt.core.LanguageSettingsProvider">
+ <provider copy-of="extension" id="org.eclipse.cdt.ui.UserLanguageSettingsProvider"/>
+ <provider-reference id="org.eclipse.cdt.core.ReferencedProjectsLanguageSettingsProvider" ref="shared-provider"/>
+ <provider-reference id="org.eclipse.cdt.managedbuilder.core.MBSLanguageSettingsProvider" ref="shared-provider"/>
+ </extension>
+ </configuration>
+</project>
diff --git a/Hello_World_FreeRTOS/CLI-commands.c b/Hello_World_FreeRTOS/CLI-commands.c
new file mode 100644
index 00000000..63a84a94
--- /dev/null
+++ b/Hello_World_FreeRTOS/CLI-commands.c
@@ -0,0 +1,371 @@
+/*
+ FreeRTOS V8.2.1 - Copyright (C) 2015 Real Time Engineers Ltd.
+ All rights reserved
+
+ VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
+
+ This file is part of the FreeRTOS distribution.
+
+ FreeRTOS is free software; you can redistribute it and/or modify it under
+ the terms of the GNU General Public License (version 2) as published by the
+ Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
+
+ ***************************************************************************
+ >>! NOTE: The modification to the GPL is included to allow you to !<<
+ >>! distribute a combined work that includes FreeRTOS without being !<<
+ >>! obliged to provide the source code for proprietary components !<<
+ >>! outside of the FreeRTOS kernel. !<<
+ ***************************************************************************
+
+ FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. Full license text is available on the following
+ link: http://www.freertos.org/a00114.html
+
+ ***************************************************************************
+ * *
+ * FreeRTOS provides completely free yet professionally developed, *
+ * robust, strictly quality controlled, supported, and cross *
+ * platform software that is more than just the market leader, it *
+ * is the industry's de facto standard. *
+ * *
+ * Help yourself get started quickly while simultaneously helping *
+ * to support the FreeRTOS project by purchasing a FreeRTOS *
+ * tutorial book, reference manual, or both: *
+ * http://www.FreeRTOS.org/Documentation *
+ * *
+ ***************************************************************************
+
+ http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
+ the FAQ page "My application does not run, what could be wrong?". Have you
+ defined configASSERT()?
+
+ http://www.FreeRTOS.org/support - In return for receiving this top quality
+ embedded software for free we request you assist our global community by
+ participating in the support forum.
+
+ http://www.FreeRTOS.org/training - Investing in training allows your team to
+ be as productive as possible as early as possible. Now you can receive
+ FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
+ Ltd, and the world's leading authority on the world's leading RTOS.
+
+ http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
+ including FreeRTOS+Trace - an indispensable productivity tool, a DOS
+ compatible FAT file system, and our tiny thread aware UDP/IP stack.
+
+ http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
+ Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
+
+ http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
+ Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
+ licenses offer ticketed support, indemnification and commercial middleware.
+
+ http://www.SafeRTOS.com - High Integrity Systems also provide a safety
+ engineered and independently SIL3 certified version for use in safety and
+ mission critical applications that require provable dependability.
+
+ 1 tab == 4 spaces!
+*/
+
+/* Modified by Maxim Integrated 26-Jun-2015 to quiet compiler warnings */
+#include <string.h>
+#include <stdio.h>
+
+/* FreeRTOS includes. */
+#include "FreeRTOS.h"
+#include "task.h"
+
+/* FreeRTOS+CLI includes. */
+#include "FreeRTOS_CLI.h"
+
+#include "rtc_regs.h"
+
+extern int disable_tickless;
+
+/*
+ * Defines a command that returns a table showing the state of each task at the
+ * time the command is called.
+ */
+static BaseType_t prvTaskStatsCommand( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString );
+
+/*
+ * Define a command which reports how long the scheduler has been operating (uptime)
+ *
+ */
+static BaseType_t prvUptimeCommand(char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString);
+
+/*
+ * Defines a command that expects exactly three parameters. Each of the three
+ * parameter are echoed back one at a time.
+ */
+static BaseType_t prvThreeParameterEchoCommand( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString );
+
+/*
+ * Defines a command that can take a variable number of parameters. Each
+ * parameter is echoes back one at a time.
+ */
+static BaseType_t prvParameterEchoCommand( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString );
+
+/* Enable or disable tickless operation */
+static BaseType_t prvTickless( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString );
+
+/* Structure that defines the "ps" command line command. */
+static const CLI_Command_Definition_t xTaskStats =
+{
+ "ps", /* The command string to type. */
+ "\r\nps:\r\n Displays a table showing the state of each FreeRTOS task\r\n\r\n",
+ prvTaskStatsCommand, /* The function to run. */
+ 0 /* No parameters are expected. */
+};
+
+/* Structure that defines the "uptime" command line command. */
+static const CLI_Command_Definition_t xUptime =
+{
+ "uptime", /* The command string to type. */
+ "\r\nuptime:\r\n Displays the uptime of the FreeRTOS system\r\n\r\n",
+ prvUptimeCommand, /* The function to run. */
+ 0 /* No parameters are expected. */
+};
+
+/* Structure that defines the "tickless" command line command. */
+static const CLI_Command_Definition_t xTickless =
+{
+ "tickless", /* The command string to type. */
+ "\r\ntickless <0/1>:\r\n Disable (0) or enable (1) tick-less operation\r\n\r\n",
+ prvTickless, /* The function to run. */
+ 1 /* One parameter expected */
+};
+
+/* Structure that defines the "echo_3_parameters" command line command. This
+takes exactly three parameters that the command simply echos back one at a
+time. */
+static const CLI_Command_Definition_t xThreeParameterEcho =
+{
+ "echo_3_parameters",
+ "\r\necho_3_parameters <param1> <param2> <param3>:\r\n Expects three parameters, echos each in turn\r\n\r\n",
+ prvThreeParameterEchoCommand, /* The function to run. */
+ 3 /* Three parameters are expected, which can take any value. */
+};
+
+/* Structure that defines the "echo_parameters" command line command. This
+takes a variable number of parameters that the command simply echos back one at
+a time. */
+static const CLI_Command_Definition_t xParameterEcho =
+{
+ "echo_parameters",
+ "\r\necho_parameters <...>:\r\n Take variable number of parameters, echos each in turn\r\n\r\n",
+ prvParameterEchoCommand, /* The function to run. */
+ -1 /* The user can enter any number of commands. */
+};
+
+/*-----------------------------------------------------------*/
+
+void vRegisterCLICommands( void )
+{
+ /* Register all the command line commands defined immediately above. */
+ FreeRTOS_CLIRegisterCommand( &xTaskStats );
+ FreeRTOS_CLIRegisterCommand( &xUptime );
+ FreeRTOS_CLIRegisterCommand( &xTickless );
+ FreeRTOS_CLIRegisterCommand( &xThreeParameterEcho );
+ FreeRTOS_CLIRegisterCommand( &xParameterEcho );
+}
+/*-----------------------------------------------------------*/
+
+static BaseType_t prvTaskStatsCommand( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString )
+{
+const char *const pcHeader = "Task State Priority Stack #\r\n************************************************\r\n";
+
+ /* Remove compile time warnings about unused parameters, and check the
+ write buffer is not NULL. NOTE - for simplicity, this example assumes the
+ write buffer length is adequate, so does not check for buffer overflows. */
+ ( void ) pcCommandString;
+ ( void ) xWriteBufferLen;
+ configASSERT( pcWriteBuffer );
+
+ /* Generate a table of task stats. */
+ strcpy( pcWriteBuffer, pcHeader );
+ vTaskList( pcWriteBuffer + strlen( pcHeader ) );
+
+ /* There is no more data to return after this single string, so return
+ pdFALSE. */
+ return pdFALSE;
+}
+/*-----------------------------------------------------------*/
+
+static BaseType_t prvUptimeCommand(char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString)
+{
+ TickType_t ticks;
+
+ ticks = xTaskGetTickCount();
+
+#if configUSE_TICKLESS_IDLE
+ pcWriteBuffer += snprintf(pcWriteBuffer, xWriteBufferLen,
+ "Uptime is 0x%08x (%u ms)\r\nMXC_RTCTMR->timer is %u\r\n",
+ ticks, ticks / portTICK_PERIOD_MS, MXC_RTC->sec);
+#else
+ pcWriteBuffer += snprintf(pcWriteBuffer, xWriteBufferLen,
+ "Uptime is 0x%08x (%u ms)\r\n",
+ ticks, ticks / portTICK_PERIOD_MS);
+#endif
+
+ /* No more data to return */
+ return pdFALSE;
+}
+/*-----------------------------------------------------------*/
+
+static BaseType_t prvThreeParameterEchoCommand( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString )
+{
+const char *pcParameter;
+BaseType_t lParameterStringLength, xReturn;
+static BaseType_t lParameterNumber = 0;
+
+ /* Remove compile time warnings about unused parameters, and check the
+ write buffer is not NULL. NOTE - for simplicity, this example assumes the
+ write buffer length is adequate, so does not check for buffer overflows. */
+ ( void ) pcCommandString;
+ ( void ) xWriteBufferLen;
+ configASSERT( pcWriteBuffer );
+
+ if( lParameterNumber == 0 )
+ {
+ /* The first time the function is called after the command has been
+ entered just a header string is returned. */
+ sprintf( pcWriteBuffer, "The three parameters were:\r\n" );
+
+ /* Next time the function is called the first parameter will be echoed
+ back. */
+ lParameterNumber = 1L;
+
+ /* There is more data to be returned as no parameters have been echoed
+ back yet. */
+ xReturn = pdPASS;
+ }
+ else
+ {
+ /* Obtain the parameter string. */
+ pcParameter = FreeRTOS_CLIGetParameter
+ (
+ pcCommandString, /* The command string itself. */
+ lParameterNumber, /* Return the next parameter. */
+ &lParameterStringLength /* Store the parameter string length. */
+ );
+
+ /* Sanity check something was returned. */
+ configASSERT( pcParameter );
+
+ /* Return the parameter string. */
+ memset( pcWriteBuffer, 0x00, xWriteBufferLen );
+ sprintf( pcWriteBuffer, "%d: ", (int)lParameterNumber );
+ strncat( pcWriteBuffer, pcParameter, lParameterStringLength );
+ strncat( pcWriteBuffer, "\r\n", strlen( "\r\n" ) );
+
+ /* If this is the last of the three parameters then there are no more
+ strings to return after this one. */
+ if( lParameterNumber == 3L )
+ {
+ /* If this is the last of the three parameters then there are no more
+ strings to return after this one. */
+ xReturn = pdFALSE;
+ lParameterNumber = 0L;
+ }
+ else
+ {
+ /* There are more parameters to return after this one. */
+ xReturn = pdTRUE;
+ lParameterNumber++;
+ }
+ }
+
+ return xReturn;
+}
+/*-----------------------------------------------------------*/
+
+static BaseType_t prvParameterEchoCommand( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString )
+{
+const char *pcParameter;
+BaseType_t lParameterStringLength, xReturn;
+static BaseType_t lParameterNumber = 0;
+
+ /* Remove compile time warnings about unused parameters, and check the
+ write buffer is not NULL. NOTE - for simplicity, this example assumes the
+ write buffer length is adequate, so does not check for buffer overflows. */
+ ( void ) pcCommandString;
+ ( void ) xWriteBufferLen;
+ configASSERT( pcWriteBuffer );
+
+ if( lParameterNumber == 0 )
+ {
+ /* The first time the function is called after the command has been
+ entered just a header string is returned. */
+ sprintf( pcWriteBuffer, "The parameters were:\r\n" );
+
+ /* Next time the function is called the first parameter will be echoed
+ back. */
+ lParameterNumber = 1L;
+
+ /* There is more data to be returned as no parameters have been echoed
+ back yet. */
+ xReturn = pdPASS;
+ }
+ else
+ {
+ /* Obtain the parameter string. */
+ pcParameter = FreeRTOS_CLIGetParameter
+ (
+ pcCommandString, /* The command string itself. */
+ lParameterNumber, /* Return the next parameter. */
+ &lParameterStringLength /* Store the parameter string length. */
+ );
+
+ if( pcParameter != NULL )
+ {
+ /* Return the parameter string. */
+ memset( pcWriteBuffer, 0x00, xWriteBufferLen );
+ sprintf( pcWriteBuffer, "%d: ", (int)lParameterNumber );
+ strncat( pcWriteBuffer, pcParameter, lParameterStringLength );
+ strncat( pcWriteBuffer, "\r\n", strlen( "\r\n" ) );
+
+ /* There might be more parameters to return after this one. */
+ xReturn = pdTRUE;
+ lParameterNumber++;
+ }
+ else
+ {
+ /* No more parameters were found. Make sure the write buffer does
+ not contain a valid string. */
+ pcWriteBuffer[ 0 ] = 0x00;
+
+ /* No more data to return. */
+ xReturn = pdFALSE;
+
+ /* Start over the next time this command is executed. */
+ lParameterNumber = 0;
+ }
+ }
+
+ return xReturn;
+}
+
+static BaseType_t prvTickless( char *pcWriteBuffer, size_t xWriteBufferLen, const char *pcCommandString )
+{
+ const char *pcParameter;
+ BaseType_t lParameterStringLength;
+
+ /* Get parameter */
+ pcParameter = FreeRTOS_CLIGetParameter(pcCommandString, 1, &lParameterStringLength);
+ if (pcParameter != NULL) {
+ if (pcParameter[0] == '0') {
+ disable_tickless = 1;
+ pcWriteBuffer += snprintf(pcWriteBuffer, xWriteBufferLen, "Tick-less mode disabled\r\n");
+ } else if (pcParameter[0] == '1') {
+ pcWriteBuffer += snprintf(pcWriteBuffer, xWriteBufferLen, "Tick-less mode enabled\r\n");
+ disable_tickless = 0;
+ } else {
+ pcWriteBuffer += snprintf(pcWriteBuffer, xWriteBufferLen, "Must supply 0 (Disable) or 1 (Enable)\r\n");
+ }
+ } else {
+ pcWriteBuffer += snprintf(pcWriteBuffer, xWriteBufferLen, "Must supply 0 (Disable) or 1 (Enable)\r\n");
+ }
+
+ return pdFALSE;
+}
diff --git a/Hello_World_FreeRTOS/FreeRTOSConfig.h b/Hello_World_FreeRTOS/FreeRTOSConfig.h
new file mode 100644
index 00000000..fc935ceb
--- /dev/null
+++ b/Hello_World_FreeRTOS/FreeRTOSConfig.h
@@ -0,0 +1,120 @@
+/*******************************************************************************
+* Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a
+* copy of this software and associated documentation files (the "Software"),
+* to deal in the Software without restriction, including without limitation
+* the rights to use, copy, modify, merge, publish, distribute, sublicense,
+* and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+* OTHER DEALINGS IN THE SOFTWARE.
+*
+* Except as contained in this notice, the name of Maxim Integrated
+* Products, Inc. shall not be used except as stated in the Maxim Integrated
+* Products, Inc. Branding Policy.
+*
+* The mere transfer of this software does not imply any licenses
+* of trade secrets, proprietary technology, copyrights, patents,
+* trademarks, maskwork rights, or any other form of intellectual
+* property whatsoever. Maxim Integrated Products, Inc. retains all
+* ownership rights.
+*
+* $Id: FreeRTOSConfig.h 22182 2016-03-30 23:42:14Z zach.metzinger $
+*
+*******************************************************************************
+*/
+
+#ifndef FREERTOS_CONFIG_H
+#define FREERTOS_CONFIG_H
+
+#include "max32665.h"
+
+/*-----------------------------------------------------------
+ * Application specific definitions.
+ *
+ * These definitions should be adjusted for your particular hardware and
+ * application requirements.
+ *
+ * THESE PARAMETERS ARE DESCRIBED WITHIN THE 'CONFIGURATION' SECTION OF THE
+ * FreeRTOS API DOCUMENTATION AVAILABLE ON THE FreeRTOS.org WEB SITE.
+ *
+ * See http://www.freertos.org/a00110.html.
+ *----------------------------------------------------------*/
+
+/* CMSIS keeps a global updated with current system clock in Hz */
+#define configCPU_CLOCK_HZ ((unsigned long)120000000)
+
+/* Tick-less idle forces a 32768 Hz RTC-derived SysTick source, and a 256 Hz task tick */
+#define configUSE_TICKLESS_IDLE 1
+#ifdef configUSE_TICKLESS_IDLE
+#define configSYSTICK_CLK_HZ ((unsigned long)32768)
+#define configTICK_RATE_HZ ((portTickType)256)
+#else
+#define configTICK_RATE_HZ ((portTickType)1000)
+#endif
+
+#define configTOTAL_HEAP_SIZE ((size_t)(26 * 1024))
+
+#define configMINIMAL_STACK_SIZE ((unsigned short)128)
+
+#define configMAX_PRIORITIES 5
+#define configUSE_PREEMPTION 0
+#define configUSE_IDLE_HOOK 0
+#define configUSE_TICK_HOOK 0
+#define configUSE_CO_ROUTINES 0
+#define configUSE_16_BIT_TICKS 0
+#define configUSE_MUTEXES 1
+
+/* Run time and task stats gathering related definitions. */
+#define configUSE_TRACE_FACILITY 1
+#define configUSE_STATS_FORMATTING_FUNCTIONS 1
+
+/* Set the following definitions to 1 to include the API function, or zero
+to exclude the API function. */
+#define INCLUDE_vTaskPrioritySet 0
+#define INCLUDE_vTaskDelete 0
+#define INCLUDE_vTaskSuspend 1
+#define INCLUDE_vTaskDelayUntil 1
+#define INCLUDE_uxTaskPriorityGet 0
+#define INCLUDE_vTaskDelay 1
+
+/* # of priority bits (configured in hardware) is provided by CMSIS */
+#define configPRIO_BITS __NVIC_PRIO_BITS
+
+/* Priority 7, or 255 as only the top three bits are implemented. This is the lowest priority. */
+#define configKERNEL_INTERRUPT_PRIORITY ( ( unsigned char ) 7 << ( 8 - configPRIO_BITS) )
+
+/* Priority 5, or 160 as only the top three bits are implemented. */
+#define configMAX_SYSCALL_INTERRUPT_PRIORITY ( ( unsigned char ) 5 << ( 8 - configPRIO_BITS) )
+
+/* Alias the default handler names to match CMSIS weak symbols */
+#define vPortSVCHandler SVC_Handler
+#define xPortPendSVHandler PendSV_Handler
+#define xPortSysTickHandler SysTick_Handler
+
+#ifdef configUSE_TICKLESS_IDLE
+#define configRTC_TICK_RATE_HZ ((portTickType)4096)
+/* Provide routines for tickless idle pre- and post- processing */
+void vPreSleepProcessing( unsigned long * );
+void vPostSleepProcessing( unsigned long );
+#define configPRE_SLEEP_PROCESSING( idletime ) vPreSleepProcessing( &idletime );
+#define configPOST_SLEEP_PROCESSING( idletime ) vPostSleepProcessing( idletime );
+#endif
+
+/* FreeRTOS+CLI requires this size to be defined, but we do not use it */
+#define configCOMMAND_INT_MAX_OUTPUT_SIZE 1
+
+#endif /* FREERTOS_CONFIG_H */
+
+
+
diff --git a/Hello_World_FreeRTOS/Makefile b/Hello_World_FreeRTOS/Makefile
new file mode 100644
index 00000000..7884dea6
--- /dev/null
+++ b/Hello_World_FreeRTOS/Makefile
@@ -0,0 +1,153 @@
+################################################################################
+# Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+# OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of Maxim Integrated
+# Products, Inc. shall not be used except as stated in the Maxim Integrated
+# Products, Inc. Branding Policy.
+#
+# The mere transfer of this software does not imply any licenses
+# of trade secrets, proprietary technology, copyrights, patents,
+# trademarks, maskwork rights, or any other form of intellectual
+# property whatsoever. Maxim Integrated Products, Inc. retains all
+# ownership rights.
+#
+###############################################################################
+
+# This is the name of the build output file
+ifeq "$(PROJECT)" ""
+PROJECT=max32665
+endif
+
+# Specify the target processor
+ifeq "$(TARGET)" ""
+TARGET=MAX32665
+endif
+
+# Create Target name variables
+TARGET_UC:=$(shell echo $(TARGET) | tr a-z A-Z)
+TARGET_LC:=$(shell echo $(TARGET) | tr A-Z a-z)
+
+# Select 'GCC' or 'IAR' compiler
+COMPILER=GCC
+
+# Specify the board used
+ifeq "$(BOARD)" ""
+#BOARD=EvKit_V1
+BOARD=card10
+endif
+
+# This is the path to the CMSIS root directory
+ifeq "$(MAXIM_PATH)" ""
+LIBS_DIR=../sdk/Libraries
+else
+LIBS_DIR=/$(subst \,/,$(subst :,,$(MAXIM_PATH))/Firmware/$(TARGET_UC)/Libraries)
+endif
+CMSIS_ROOT=$(LIBS_DIR)/CMSIS
+
+# Source files for this test (add path to VPATH below)
+SRCS = main.c
+SRCS += FreeRTOS_CLI.c
+SRCS += CLI-commands.c
+SRCS += freertos_tickless.c
+SRCS += pmic.c
+SRCS += bosch.c
+SRCS += bhy_support.c bhy_uc_driver.c bhy.c
+SRCS += MAX77650-Arduino-Library.c
+SRCS += bme680.h
+SRCS += bma400.c
+
+
+# Where to find source files for this test
+VPATH = .
+
+# Where to find header files for this test
+IPATH = .
+
+IPATH += ../lib/card10
+VPATH += ../lib/card10
+
+IPATH += ../lib/bosch/BHy1_driver_and_MCU_solution/driver/inc
+IPATH += ../lib/bosch/BHy1_driver_and_MCU_solution/examples/firmware/
+VPATH += ../lib/bosch/BHy1_driver_and_MCU_solution/driver/src
+
+IPATH += ../lib/maxim/MAX77650-Arduino-Library
+VPATH += ../lib/maxim/MAX77650-Arduino-Library
+
+IPATH += ../lib/bosch/BME680_driver
+VPATH += ../lib/bosch/BME680_driver
+
+IPATH += ../lib/bosch/BMA400-API
+VPATH += ../lib/bosch/BMA400-API
+
+# Enable assertion checking for development
+PROJ_CFLAGS+=-DMXC_ASSERT_ENABLE
+
+# Specify the target revision to override default
+# "A2" in ASCII
+# TARGET_REV=0x4132
+
+# Use this variables to specify and alternate tool path
+#TOOL_DIR=/opt/gcc-arm-none-eabi-4_8-2013q4/bin
+
+# Use these variables to add project specific tool options
+#PROJ_CFLAGS+=--specs=nano.specs
+#PROJ_LDFLAGS+=--specs=nano.specs
+
+PROJ_CFLAGS+=-std=c99
+
+# Point this variable to a startup file to override the default file
+#STARTUPFILE=start.S
+
+# Override the default optimization level using this variable
+#MXC_OPTIMIZE_CFLAGS=-O1
+
+# Point this variable to a linker file to override the default file
+ifneq "$(APP)" ""
+LINKERFILE=$(CMSIS_ROOT)/Device/Maxim/$(TARGET_UC)/Source/GCC/$(TARGET_LC)_app.ld
+endif
+
+################################################################################
+# Include external library makefiles here
+
+# Include the BSP
+BOARD_DIR=$(LIBS_DIR)/Boards/$(BOARD)
+include $(BOARD_DIR)/board.mk
+
+# Include the peripheral driver
+PERIPH_DRIVER_DIR=$(LIBS_DIR)/$(TARGET_UC)PeriphDriver
+include $(PERIPH_DRIVER_DIR)/periphdriver.mk
+
+# Include the FreeRTOS library, and specify a local FreeRTOSConfig.h file
+RTOS_CONFIG_DIR=.
+RTOS_DIR=$(LIBS_DIR)/FreeRTOS
+include $(RTOS_DIR)/freertos.mk
+# Include the FreeRTOS-Plus-CLI (please read license file before using commercially)
+IPATH +=$(LIBS_DIR)/FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI
+VPATH +=$(LIBS_DIR)/FreeRTOS-Plus/Source/FreeRTOS-Plus-CLI
+
+################################################################################
+# Include the rules for building for this target. All other makefiles should be
+# included before this one.
+include $(CMSIS_ROOT)/Device/Maxim/$(TARGET_UC)/Source/$(COMPILER)/$(TARGET_LC).mk
+
+# The rule to clean out all the build products.
+distclean: clean
+ $(MAKE) -C ${PERIPH_DRIVER_DIR} clean
diff --git a/Hello_World_FreeRTOS/build_image b/Hello_World_FreeRTOS/build_image
new file mode 100755
index 00000000..efcda785
--- /dev/null
+++ b/Hello_World_FreeRTOS/build_image
@@ -0,0 +1,5 @@
+make clean
+make APP=1
+make build/max32665.bin
+cp build/max32665.bin card10.bin
+python ../bootloader/crc_patch.py card10.bin
diff --git a/Hello_World_FreeRTOS/freertos_tickless.c b/Hello_World_FreeRTOS/freertos_tickless.c
new file mode 100644
index 00000000..da328c0d
--- /dev/null
+++ b/Hello_World_FreeRTOS/freertos_tickless.c
@@ -0,0 +1,197 @@
+/*******************************************************************************
+ * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+ * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+
+/* MXC */
+#include "mxc_config.h"
+#include "board.h"
+#include "mxc_assert.h"
+
+/* FreeRTOS includes */
+#include "FreeRTOS.h"
+#include "task.h"
+
+/* Maxim CMSIS */
+#include "lp.h"
+#include "rtc.h"
+#include "pwrseq_regs.h"
+
+#define RTC_RATIO (configRTC_TICK_RATE_HZ / configTICK_RATE_HZ)
+#define MAX_SNOOZE 0xFF
+#define MIN_SYSTICK 2
+#define MIN_RTC_TICKS 5
+
+static uint32_t residual = 0;
+
+/*
+ * Sleep-check function
+ *
+ * Your code should over-ride this weak function and return E_NO_ERROR if
+ * tickless sleep is permissible (ie. no UART/SPI/I2C activity). Any other
+ * return code will prevent FreeRTOS from entering tickless idle.
+ */
+__attribute__((weak)) int freertos_permit_tickless(void)
+{
+ return E_NO_ERROR;
+}
+
+/*
+ * This function overrides vPortSuppressTicksAndSleep in portable/.../ARM_CM4F/port.c
+ *
+ * DEEPSLEEP mode will stop SysTick from counting, so that can't be
+ * used to wake up. Instead, calculate a wake-up period for the RTC to
+ * interrupt the WFI and continue execution.
+ *
+ */
+void vPortSuppressTicksAndSleep( TickType_t xExpectedIdleTime )
+{
+ volatile uint32_t rtc_ticks, rtc_ss_val;
+ volatile uint32_t actual_ticks;
+ volatile uint32_t pre_capture, post_capture;
+ gpio_cfg_t uart_rx_pin = {PORT_0, PIN_10, GPIO_FUNC_IN, GPIO_PAD_PULL_UP};
+
+ /* Example:
+ *
+ * configTICK_RATE_HZ 512
+ * configRTC_TICK_RATE_HZ 4096
+ *
+ * RTC is 8x more accurate than the normal tick in this case. We can accumulate an error term and
+ * fix up when called again as the error term equals 1 task tick
+ */
+
+ /* We do not currently handle to case where the RTC is slower than the RTOS tick */
+ MXC_ASSERT(configRTC_TICK_RATE_HZ >= configTICK_RATE_HZ);
+
+ if (SysTick->VAL < MIN_SYSTICK) {
+ /* Avoid sleeping too close to a systick interrupt */
+ return;
+ }
+
+ /* Deep sleep time is limited */
+ if (xExpectedIdleTime > (MAX_SNOOZE / RTC_RATIO)) {
+ xExpectedIdleTime = (MAX_SNOOZE / RTC_RATIO);
+ }
+
+ /* Calculate the number of RTC ticks, but we need a few ticks to synchronize */
+ rtc_ticks = (xExpectedIdleTime - 4UL) * RTC_RATIO;
+
+ if ((xExpectedIdleTime < 5) || (rtc_ticks < MIN_RTC_TICKS)) {
+ /* Finish out the rest of this tick with normal sleep */
+ LP_EnterSleepMode();
+ return;
+ }
+
+ /* Enter a critical section but don't use the taskENTER_CRITICAL()
+ method as that will mask interrupts that should exit sleep mode. */
+ __asm volatile( "cpsid i" );
+
+ /* If a context switch is pending or a task is waiting for the scheduler
+ to be unsuspended then abandon the low power entry. */
+ /* Also check the MXC drivers for any in-progress activity */
+ if ((eTaskConfirmSleepModeStatus() == eAbortSleep) ||
+ (freertos_permit_tickless() != E_NO_ERROR)) {
+ /* Re-enable interrupts - see comments above the cpsid instruction()
+ above. */
+ __asm volatile( "cpsie i" );
+ return;
+ }
+
+ /* Use sub-second roll-over to wake up */
+ rtc_ss_val = 0xFFFFFFFF - (rtc_ticks - 1);
+ RTC_SetSubsecondAlarm(MXC_RTC, rtc_ss_val);
+
+ MXC_RTC->ctrl &= ~(MXC_F_RTC_CTRL_ALSF);
+ RTC_EnableSubsecondInterrupt(MXC_RTC);
+
+ /* Pin used for UART RX must have GPIO interrupt enabled */
+ GPIO_IntEnable(&uart_rx_pin);
+
+ /* Snapshot the current RTC value */
+ pre_capture = MXC_RTC->ssec;
+
+ /* Sleep */
+ LP_EnterDeepSleepMode();
+
+ /* -- WAKE HERE -- */
+
+ /* We'll need to wait for the RTC to synchronize */
+ MXC_RTC->ctrl &= ~MXC_F_RTC_CTRL_RDY;
+
+ /* Remove interrupt flag and configuration for GPIO on UART RX pin */
+ GPIO_IntClr(&uart_rx_pin);
+ GPIO_IntDisable(&uart_rx_pin);
+
+ /* Snapshot the current RTC value */
+ while (!(MXC_RTC->ctrl & MXC_F_RTC_CTRL_RDY));
+ post_capture = MXC_RTC->ssec;
+
+ /* Dermine wake cause */
+ if (MXC_RTC->ctrl & MXC_F_RTC_CTRL_ALSF) {
+ /* RTC woke the processor */
+ actual_ticks = rtc_ticks;
+ } else {
+ /* Determine the actual duration of sleep */
+ if (post_capture < pre_capture) {
+ /* Rollover */
+ post_capture += 0x1000;
+ }
+ actual_ticks = post_capture - pre_capture;
+ if (actual_ticks > rtc_ticks) {
+ /* Assert or just fix up */
+ MXC_ASSERT_FAIL();
+ actual_ticks = rtc_ticks;
+ }
+
+ if (RTC_RATIO > 1) {
+ /* Add residual from any previous early wake */
+ actual_ticks += residual;
+ /* Find new residual */
+ residual = actual_ticks % RTC_RATIO;
+ }
+ }
+
+ /* RTC sub-second interrupt no longer desired */
+ RTC_DisableSubsecondInterrupt(MXC_RTC);
+ MXC_RTC->ctrl &= ~(MXC_F_RTC_CTRL_ALSF);
+
+ /* Re-enable interrupts - see comments above the cpsid instruction()
+ above. */
+ __asm volatile( "cpsie i" );
+
+ /*
+ * Advance ticks by # actually elapsed
+ */
+ portENTER_CRITICAL();
+ /* Future enhancement: Compare time in seconds to RTC and slew to correct */
+ vTaskStepTick( actual_ticks / RTC_RATIO );
+ portEXIT_CRITICAL();
+}
diff --git a/Hello_World_FreeRTOS/main.c b/Hello_World_FreeRTOS/main.c
new file mode 100644
index 00000000..3600e2fe
--- /dev/null
+++ b/Hello_World_FreeRTOS/main.c
@@ -0,0 +1,427 @@
+/*******************************************************************************
+ * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+ * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+
+/* config.h is the required application configuration; RAM layout, stack, chip type etc. */
+#include "mxc_config.h"
+#include "board.h"
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+/* FreeRTOS */
+#include "FreeRTOS.h"
+#include "task.h"
+#include "semphr.h"
+
+/* FreeRTOS+ */
+#include "FreeRTOS_CLI.h"
+
+/* Maxim CMSIS SDK */
+#include "rtc.h"
+#include "uart.h"
+#include "lp.h"
+#include "led.h"
+#include "board.h"
+
+/* FreeRTOS+CLI */
+void vRegisterCLICommands(void);
+
+/* Mutual exclusion (mutex) semaphores */
+SemaphoreHandle_t xGPIOmutex;
+
+/* Task IDs */
+TaskHandle_t cmd_task_id;
+
+/* Enables/disables tick-less mode */
+unsigned int disable_tickless = 1;
+
+/* Stringification macros */
+#define STRING(x) STRING_(x)
+#define STRING_(x) #x
+
+/* Console ISR selection */
+#if (CONSOLE_UART==0)
+#define UARTx_IRQHandler UART0_IRQHandler
+#define UARTx_IRQn UART0_IRQn
+#elif (CONSOLE_UART==1)
+#define UARTx_IRQHandler UART1_IRQHandler
+#define UARTx_IRQn UART1_IRQn
+#else
+#error "Please update ISR macro for UART CONSOLE_UART"
+#endif
+mxc_uart_regs_t *ConsoleUART = MXC_UART_GET_UART(CONSOLE_UART);
+
+/* Array sizes */
+#define CMD_LINE_BUF_SIZE 80
+#define OUTPUT_BUF_SIZE 512
+
+/* =| vTask0 |============================================
+ *
+ * This task blinks LED0 at a 0.5Hz rate, and does not
+ * drift due to the use of vTaskDelayUntil(). It may have
+ * jitter, however, due to any higher-priority task or
+ * interrupt causing delays in scheduling.
+ *
+ * =======================================================
+ */
+void vTask0(void *pvParameters)
+{
+ TickType_t xLastWakeTime;
+ unsigned int x = LED_OFF;
+
+ /* Get task start time */
+ xLastWakeTime = xTaskGetTickCount();
+
+ while (1) {
+ /* Protect hardware access with mutex
+ *
+ * Note: This is not strictly necessary, since GPIO_SetOutVal() is implemented with bit-band
+ * access, which is inherently task-safe. However, for other drivers, this would be required.
+ *
+ */
+ if (xSemaphoreTake(xGPIOmutex, portMAX_DELAY) == pdTRUE) {
+ if (x == LED_OFF) {
+ x = LED_ON;
+ } else {
+ x = LED_OFF;
+ }
+ /* Return the mutex after we have modified the hardware state */
+ xSemaphoreGive(xGPIOmutex);
+ }
+ /* Wait 1 second until next run */
+ vTaskDelayUntil(&xLastWakeTime, configTICK_RATE_HZ);
+ }
+}
+
+/* =| vTask1 |============================================
+ *
+ * This task blinks LED1 at a 0.5Hz rate, and does not
+ * drift due to the use of vTaskDelayUntil(). It may have
+ * jitter, however, due to any higher-priority task or
+ * interrupt causing delays in scheduling.
+ *
+ * NOTE: The MAX32660 EV Kit has only 1 LED, so this task
+ * does not blink an LED.
+ *
+ * =======================================================
+ */
+void vTask1(void *pvParameters)
+{
+ TickType_t xLastWakeTime;
+ unsigned int x = LED_ON;
+
+ /* Get task start time */
+ xLastWakeTime = xTaskGetTickCount();
+
+ while (1) {
+ /* Protect hardware access with mutex
+ *
+ * Note: This is not strictly necessary, since GPIO_SetOutVal() is implemented with bit-band
+ * access, which is inherently task-safe. However, for other drivers, this would be required.
+ *
+ */
+ if (xSemaphoreTake(xGPIOmutex, portMAX_DELAY) == pdTRUE) {
+ if (x == LED_OFF) {
+ LED_On(0);
+ x = LED_ON;
+ } else {
+ LED_Off(0);
+ x = LED_OFF;
+ }
+ /* Return the mutex after we have modified the hardware state */
+ xSemaphoreGive(xGPIOmutex);
+ }
+ /* Wait 1 second until next run */
+ vTaskDelayUntil(&xLastWakeTime, configTICK_RATE_HZ);
+ }
+}
+
+/* =| vTickTockTask |============================================
+ *
+ * This task writes the current RTOS tick time to the console
+ *
+ * =======================================================
+ */
+void vTickTockTask(void *pvParameters)
+{
+ TickType_t ticks = 0;
+ TickType_t xLastWakeTime;
+
+ /* Get task start time */
+ xLastWakeTime = xTaskGetTickCount();
+
+ while (1) {
+ ticks = xTaskGetTickCount();
+ printf("Uptime is 0x%08x (%u seconds), tickless-idle is %s\n",
+ ticks, ticks / configTICK_RATE_HZ,
+ disable_tickless ? "disabled" : "ENABLED");
+ vTaskDelayUntil(&xLastWakeTime, (configTICK_RATE_HZ * 60));
+ }
+}
+
+/* =| UART0_IRQHandler |======================================
+ *
+ * This function overrides the weakly-declared interrupt handler
+ * in system_max326xx.c and is needed for asynchronous UART
+ * calls to work properly
+ *
+ * ===========================================================
+ */
+void UARTx_IRQHandler(void)
+{
+ UART_Handler(ConsoleUART);
+}
+
+/* =| vCmdLineTask_cb |======================================
+ *
+ * Callback on asynchronous reads to wake the waiting command
+ * processor task
+ *
+ * ===========================================================
+ */
+void vCmdLineTask_cb(uart_req_t *req, int error)
+{
+ BaseType_t xHigherPriorityTaskWoken;
+
+ /* Wake the task */
+ xHigherPriorityTaskWoken = pdFALSE;
+ vTaskNotifyGiveFromISR(cmd_task_id, &xHigherPriorityTaskWoken);
+ portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
+}
+
+/* =| vCmdLineTask |======================================
+ *
+ * The command line task provides a prompt on the serial
+ * interface and takes input from the user to evaluate
+ * via the FreeRTOS+CLI parser.
+ *
+ * NOTE: FreeRTOS+CLI is part of FreeRTOS+ and has
+ * different licensing requirements. Please see
+ * http://www.freertos.org/FreeRTOS-Plus for more information
+ *
+ * =======================================================
+ */
+void vCmdLineTask(void *pvParameters)
+{
+ unsigned char tmp;
+ unsigned int index; /* Index into buffer */
+ unsigned int x;
+ char buffer[CMD_LINE_BUF_SIZE]; /* Buffer for input */
+ char output[OUTPUT_BUF_SIZE]; /* Buffer for output */
+ BaseType_t xMore;
+ uart_req_t async_read_req;
+ gpio_cfg_t uart_rx_pin = {PORT_0, PIN_10, GPIO_FUNC_IN, GPIO_PAD_NONE};
+
+ memset(buffer, 0, CMD_LINE_BUF_SIZE);
+ index = 0;
+
+ /* Register available CLI commands */
+ vRegisterCLICommands();
+
+#if configUSE_TICKLESS_IDLE
+ /* Configure wake-up for GPIO pin corresponding to the UART RX line */
+ LP_EnableGPIOWakeup(&uart_rx_pin);
+ GPIO_IntConfig(&uart_rx_pin, GPIO_INT_EDGE, GPIO_INT_FALLING);
+#endif
+
+ /* Enable UART0 interrupt */
+ NVIC_ClearPendingIRQ(UARTx_IRQn);
+ NVIC_DisableIRQ(UARTx_IRQn);
+ NVIC_SetPriority(UARTx_IRQn, 1);
+ NVIC_EnableIRQ(UARTx_IRQn);
+
+ /* Async read will be used to wake process */
+ async_read_req.data = &tmp;
+ async_read_req.len = 1;
+ async_read_req.callback = vCmdLineTask_cb;
+
+ printf("\nEnter 'help' to view a list of available commands.\n");
+ printf("cmd> ");
+ fflush(stdout);
+ while (1) {
+ /* Register async read request */
+ if (UART_ReadAsync(ConsoleUART, &async_read_req) != E_NO_ERROR) {
+ printf("Error registering async request. Command line unavailable.\n");
+ vTaskDelay(portMAX_DELAY);
+ }
+ /* Hang here until ISR wakes us for a character */
+ ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
+ /* Check that we have a valid character */
+ if (async_read_req.num > 0) {
+ /* Process character */
+ do {
+ if (tmp == 0x08) {
+ /* Backspace */
+ if (index > 0) {
+ index--;
+ printf("\x08 \x08");
+ }
+ fflush(stdout);
+ } else if (tmp == 0x03) {
+ /* ^C abort */
+ index = 0;
+ printf("^C");
+ printf("\ncmd> ");
+ fflush(stdout);
+ } else if ((tmp == '\r') ||
+ (tmp == '\n')) {
+ printf("\r\n");
+ /* Null terminate for safety */
+ buffer[index] = 0x00;
+ /* Evaluate */
+ do {
+ xMore = FreeRTOS_CLIProcessCommand(buffer, output, OUTPUT_BUF_SIZE);
+ /* If xMore == pdTRUE, then output buffer contains no null termination, so
+ * we know it is OUTPUT_BUF_SIZE. If pdFALSE, we can use strlen.
+ */
+ for (x = 0; x < (xMore == pdTRUE ? OUTPUT_BUF_SIZE : strlen(output)) ; x++) {
+ putchar(*(output+x));
+ }
+ } while (xMore != pdFALSE);
+ /* New prompt */
+ index = 0;
+ printf("\ncmd> ");
+ fflush(stdout);
+ } else if (index < CMD_LINE_BUF_SIZE) {
+ putchar(tmp);
+ buffer[index++] = tmp;
+ fflush(stdout);
+ } else {
+ /* Throw away data and beep terminal */
+ putchar(0x07);
+ fflush(stdout);
+ }
+ /* If more characters are ready, process them here */
+ } while ((UART_NumReadAvail(MXC_UART_GET_UART(CONSOLE_UART)) > 0) &&
+ UART_Read(MXC_UART_GET_UART(CONSOLE_UART), (uint8_t *)&tmp, 1, NULL));
+ }
+ }
+}
+
+#if configUSE_TICKLESS_IDLE
+/* =| freertos_permit_tickless |==========================
+ *
+ * Determine if any hardware activity should prevent
+ * low-power tickless operation.
+ *
+ * =======================================================
+ */
+int freertos_permit_tickless(void)
+{
+ if (disable_tickless == 1) {
+ return E_BUSY;
+ }
+
+ return UART_PrepForSleep(MXC_UART_GET_UART(CONSOLE_UART));
+}
+#endif
+
+void RTC_IRQHandler(void)
+{
+ MXC_RTC->ctrl &= ~(MXC_F_RTC_CTRL_ALSF);
+}
+
+/* =| main |==============================================
+ *
+ * This program demonstrates FreeRTOS tasks, mutexes,
+ * and the FreeRTOS+CLI extension.
+ *
+ * =======================================================
+ */
+int main(void)
+{
+#if configUSE_TICKLESS_IDLE
+ uart_cfg_t uart_cfg = {
+ .parity = UART_PARITY_DISABLE,
+ .size = UART_DATA_SIZE_8_BITS,
+ .stop = UART_STOP_1,
+ .flow = UART_FLOW_CTRL_DIS,
+ .pol = UART_FLOW_POL_DIS,
+ .baud = 115200,
+ .clksel = UART_CLKSEL_SYSTEM
+ };
+ sys_cfg_uart_t uart_sys_cfg = {MAP_A, Enable};
+
+ /* The RTC must be enabled for tickless operation */
+ RTC_Init(MXC_RTC, 0, 0, NULL);
+ RTC_EnableRTCE(MXC_RTC);
+ NVIC_ClearPendingIRQ(RTC_IRQn);
+ NVIC_EnableIRQ(RTC_IRQn);
+ LP_EnableRTCAlarmWakeup();
+ /* If running tickless idle, must reduce baud rate to avoid losing character */
+ if (UART_Init(ConsoleUART, &uart_cfg, &uart_sys_cfg) != E_NO_ERROR) {
+ MXC_ASSERT_FAIL();
+ }
+#endif
+
+ /* Print banner (RTOS scheduler not running) */
+ printf("\n-=- %s FreeRTOS (%s) Demo -=-\n", STRING(TARGET), tskKERNEL_VERSION_NUMBER);
+#if configUSE_TICKLESS_IDLE
+ printf("Tickless idle is configured. Type 'tickless 1' to enable.\n");
+#endif
+
+ /* Create mutexes */
+ xGPIOmutex = xSemaphoreCreateMutex();
+ if (xGPIOmutex == NULL) {
+ printf("xSemaphoreCreateMutex failed to create a mutex.\n");
+ } else {
+ /* Configure task */
+ if ((xTaskCreate(vTask0, (const char *)"Task0",
+ configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY+1, NULL) != pdPASS) ||
+ (xTaskCreate(vTask1, (const char *)"Task1",
+ configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY+1, NULL) != pdPASS) ||
+ (xTaskCreate(vTickTockTask, (const char *)"TickTock",
+ 2*configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY+2, NULL) != pdPASS) ||
+ (xTaskCreate(vCmdLineTask, (const char *)"CmdLineTask",
+ configMINIMAL_STACK_SIZE+CMD_LINE_BUF_SIZE+OUTPUT_BUF_SIZE, NULL, tskIDLE_PRIORITY+1, &cmd_task_id) != pdPASS)) {
+ printf("xTaskCreate() failed to create a task.\n");
+ } else {
+ /* Start scheduler */
+ printf("Starting scheduler.\n");
+ vTaskStartScheduler();
+ }
+ }
+
+ /* This code is only reached if the scheduler failed to start */
+ printf("ERROR: FreeRTOS did not start due to above error!\n");
+ while (1) {
+ __NOP();
+ }
+
+ /* Quiet GCC warnings */
+ return -1;
+}
--
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