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hw/bsp/lpc43: reset peripherals on IAR restart

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This commit is contained in:
Zixun LI
2026-07-27 15:55:20 +02:00
parent f0a8a1483b
commit b3708aebd9
1 changed files with 13 additions and 0 deletions
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13
hw/bsp/lpc43/family.c
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@ -59,6 +59,19 @@ void SystemInit(void);
// Invoked by startup code
void SystemInit(void)
{
#if defined(__ICCARM__) && !defined(DONT_RESET_ON_RESTART)
// A debugger restart resets the M4 core, but can leave LPC43 peripherals and
// pending interrupts active. Match the GCC startup sequence, which the IAR
// startup lacks, before the C runtime can reuse peripheral DMA memory.
__disable_irq();
LPC_RGU->RESET_CTRL[0] = 0x10DF1000u;
LPC_RGU->RESET_CTRL[1] = 0x01DFF7FFu;
for (uint32_t i = 0; i < 8; i++) {
NVIC->ICPR[i] = UINT32_MAX;
}
__enable_irq();
#endif
#ifdef __USE_LPCOPEN
unsigned int *pSCB_VTOR = (unsigned int *) 0xE000ED08;