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[H7] Initialize I2C peripheral clock sources

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This has been left out with default which was okay, but do it
explicitly for clarity.
This commit is contained in:
jflyper 2020-03-09 12:30:35 +09:00
parent 55a0c0129a
commit 87d2485f86
1 changed files with 14 additions and 0 deletions
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14
src/main/startup/system_stm32h7xx.c
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@ -478,6 +478,20 @@ void SystemClock_Config(void)
RCC_PeriphClkInit.Spi6ClockSelection = RCC_SPI6CLKSOURCE_D3PCLK1;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);
// Configure I2C peripheral clock sources
//
// Current source for I2C123:
// D2PCLK1 (rcc_pclk1 = APB1 peripheral clock)
//
// Current source for I2C4:
// D3PCLK1 (rcc_pclk4 = APB4 peripheral clock)
//
RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_I2C123|RCC_PERIPHCLK_I2C4;
RCC_PeriphClkInit.I2c123ClockSelection = RCC_I2C123CLKSOURCE_D2PCLK1;
RCC_PeriphClkInit.I2c4ClockSelection = RCC_I2C4CLKSOURCE_D3PCLK1;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);
#ifdef USE_SDCARD_SDIO
RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_SDMMC;
RCC_PeriphClkInit.PLL2.PLL2M = 5;