During startup of the BLE, the advert name is pulled off the random bytes of the mac in mac.txt.

epicardium/ble/ble.c

@@ -90,16 +90,13 @@ static void WsfInit(void)
 /* TODO: We need a source of MACs */
 static void setAddress(void)
 {
-	uint8_t bdAddr[6] = { 0x02, 0x02, 0x44, 0x8B, 0x05, 0x00 };
+	uint8_t bdAddr[6] = { 0xCA, 0x4D, 0x10, 0x00, 0x00, 0x00 };
 	char buf[32];
 
 	int result = fs_read_text_file("mac.txt", buf, sizeof(buf));
 
 	if (result == -1) {
 		APP_TRACE_INFO0("mac.txt not found, generating random MAC");
-		bdAddr[0] = 0xCA;
-		bdAddr[1] = 0x4D;
-		bdAddr[2] = 0x10;
 		epic_trng_read(bdAddr + 3, 3);
 		sprintf(buf,
 			"%02x:%02x:%02x:%02x:%02x:%02x\n",
@@ -123,7 +120,7 @@ static void setAddress(void)
 		bdAddr[4] = b;
 		bdAddr[5] = a;
 	}
-
+		
 	LOG_INFO(
 		"ble",
 		"Setting MAC address to %02X:%02X:%02X:%02X:%02X:%02X",

epicardium/ble/ble_main.c

@@ -13,9 +13,11 @@
  */
 /* clang-format off */
 /* clang-formet turned off for easier diffing against orginal file */
+#include <stdio.h>
 #include <string.h>
 #include "wsf_types.h"
 #include "util/bstream.h"
+#include "fs_util.h"
 #include "wsf_msg.h"
 #include "wsf_trace.h"
 #include "hci_api.h"
@@ -155,12 +157,12 @@ static const uint8_t bleAdvDataDisc[] =
 };
 
 /*! scan data, discoverable mode */
-static const uint8_t bleScanDataDisc[] =
+uint8_t bleScanDataDisc[] =
 {
   /*! device name */
-  7,                                      /*! length */
+  14,                                      /*! length */
   DM_ADV_TYPE_LOCAL_NAME,                 /*! AD type */
-  'c','a','r','d','1','0'
+  'c','a','r','d','1','0','-','0','0','0','0','0','0'
 };
 
 /**************************************************************************************************
@@ -323,6 +325,22 @@ static void bleClose(bleMsg_t *pMsg)
 /*************************************************************************************************/
 static void bleSetup(bleMsg_t *pMsg)
 {
+  char buf[32];
+  char a, b, c, d, e, f;
+
+  if (fs_read_text_file("mac.txt", buf, sizeof(buf)))
+  {
+    if (sscanf(buf, "**:**:**:%c%c:%c%c:%c%c", &a, &b, &c, &d, &e, &f) == 6)
+    {
+      bleScanDataDisc[9]  = a;
+      bleScanDataDisc[10] = b;
+      bleScanDataDisc[11] = c;
+      bleScanDataDisc[12] = d;
+      bleScanDataDisc[13] = e;
+      bleScanDataDisc[14] = f;
+    }
+  }
+  
   /* set advertising and scan response data for discoverable mode */
   AppAdvSetData(APP_ADV_DATA_DISCOVERABLE, sizeof(bleAdvDataDisc), (uint8_t *) bleAdvDataDisc);
   AppAdvSetData(APP_SCAN_DATA_DISCOVERABLE, sizeof(bleScanDataDisc), (uint8_t *) bleScanDataDisc);

flash-all.gdb

@@ -2,6 +2,9 @@ source init.gdb
 
 set confirm off
 
+mon max32xxx mass_erase 0
+mon max32xxx mass_erase 1
+
 echo #### BOOTLOADER ####\n
 load build/bootloader/bootloader.elf
 echo #### EPICARDIUM ####\n