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stm32/rfcore: Allow HSE to be a wakeup source for BLE for the WB55.

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Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>
This commit is contained in:
Matt Trentini 2022-08-09 00:56:50 +10:00 committed by Damien George
parent 185116ea41
commit e2c0e876f5
1 changed files with 5 additions and 1 deletions
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6
ports/stm32/rfcore.c
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@ -539,8 +539,12 @@ void rfcore_init(void) {
while (LL_HSEM_1StepLock(HSEM, CFG_HW_PWR_STANDBY_SEMID)) {
}
// Select LSE as RF wakeup source
// Set the wakeup source to LSE or fall back to use HSE
#if MICROPY_HW_RTC_USE_LSE
RCC->CSR = (RCC->CSR & ~RCC_CSR_RFWKPSEL) | 1 << RCC_CSR_RFWKPSEL_Pos;
#else
RCC->CSR = (RCC->CSR & ~RCC_CSR_RFWKPSEL) | 3 << RCC_CSR_RFWKPSEL_Pos;
#endif
// Initialise IPCC and shared memory structures
ipcc_init(IRQ_PRI_SDIO);