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stm32/boards/NUCLEO_G474RE: Change flash latency for NUCLEO-G474RE.

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For NUCLEO-G474RE, FLASH_LATENCY_4 can be specified instead of
FLASH_LATENCY_8 because it runs at 170MHz.

Signed-off-by: Yuuki NAGAO <wf.yn386@gmail.com>
This commit is contained in:
Yuuki NAGAO
2025-09-15 09:39:28 +09:00
committed by Damien George
parent 06a90e0b4b
commit 03e3a06de6
2 changed files with 2 additions and 2 deletions
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2
ports/stm32/boards/NUCLEO_G474RE/mpconfigboard.h
View File

@@ -29,7 +29,7 @@
#define MICROPY_HW_CLK_USE_HSI48 (1) // for RNG
// 4 wait states
#define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_8
#define MICROPY_HW_FLASH_LATENCY FLASH_LATENCY_4
// UART config
#define MICROPY_HW_LPUART1_TX (pin_A2) // A2 (to STLINK), B11, C1

2
ports/stm32/system_stm32.c
View File

@@ -494,7 +494,7 @@ MP_WEAK void SystemClock_Config(void) {
#endif
#if defined(STM32G4)
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_8) != HAL_OK) {
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, MICROPY_HW_FLASH_LATENCY) != HAL_OK) {
MICROPY_BOARD_FATAL_ERROR("HAL_RCC_ClockConfig");
}
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC | RCC_PERIPHCLK_LPUART1