From b4a2c87c111041a83a962a2c9f1cd3eb5b885a3b Mon Sep 17 00:00:00 2001
From: ch3 <ch3@mailbox.org>
Date: Thu, 13 Jun 2019 11:58:18 +0200
Subject: [PATCH] DualCore: Wake up core0 from core1, too
---
hw-tests/dual-core/core1.c | 4 ++++
hw-tests/dual-core/main.c | 6 +++++-
2 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/hw-tests/dual-core/core1.c b/hw-tests/dual-core/core1.c
index 989c611a..adb31bf8 100644
--- a/hw-tests/dual-core/core1.c
+++ b/hw-tests/dual-core/core1.c
@@ -11,6 +11,10 @@ int main(void)
for (int i = 0; 1; i++) {
__asm volatile("wfe");
printf("core1: Hello! %d\n", i);
+ mxc_delay(3000000);
+ printf("core1: Waking up core0\n");
+ __asm volatile("sev");
+ __asm volatile("wfe");
#if 0
GPIO_OutSet(&motor_pin);
diff --git a/hw-tests/dual-core/main.c b/hw-tests/dual-core/main.c
index d8e94276..a13daa43 100644
--- a/hw-tests/dual-core/main.c
+++ b/hw-tests/dual-core/main.c
@@ -39,6 +39,7 @@ int main(void)
}
int h = 0;
+ MXC_GCR->evten |= 0x04;
// Release core1
Core1_Start();
@@ -54,7 +55,7 @@ int main(void)
}
leds_update();
- TMR_Delay(MXC_TMR0, MSEC(10), 0);
+ TMR_Delay(MXC_TMR1, MSEC(10), 0);
h++;
// Send a txev using `sev` every once in a while to wake up core1
@@ -62,6 +63,9 @@ int main(void)
if (h % 100 == 0) {
printf("core0: Triggering core1 using SEV ...\n");
__asm volatile("sev");
+ __asm volatile("wfe");
+ __asm volatile("wfe");
+ printf("core0 woke up\n");
}
}
}
--
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