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stm32/powerctrlboot: Allow using PLL3 for USB clock on H5 MCU's. 

A board should enable MICROPY_HW_CLK_USE_PLL3_FOR_USB to use this feature.

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2023-09-13 16:06:06 +10:00
parent 60e0ef6ef6
commit 67b1c81f69
1 changed files with 2 additions and 2 deletions
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4
ports/stm32/powerctrlboot.c
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@ -251,7 +251,7 @@ void SystemClock_Config(void) {
powerctrl_config_systick();
// USB clock configuration, either HSI48 or PLL3.
#if 1
#if MICROPY_HW_ENABLE_USB && !MICROPY_HW_CLK_USE_PLL3_FOR_USB
// Enable HSI48.
LL_RCC_HSI48_Enable();
@ -267,7 +267,7 @@ void SystemClock_Config(void) {
| __HAL_RCC_CRS_RELOADVALUE_CALCULATE(48000000, 1000) << CRS_CFGR_RELOAD_Pos;
CRS->CR = 0x20 << CRS_CR_TRIM_Pos | CRS_CR_AUTOTRIMEN | CRS_CR_CEN;
#else
#elif MICROPY_HW_ENABLE_USB && MICROPY_HW_CLK_USE_PLL3_FOR_USB
// Configure PLL3 for use by USB at Q=48MHz.
LL_RCC_PLL3_SetSource(LL_RCC_PLL3SOURCE_HSE);