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APB comment correction

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This commit is contained in:
Scott Lahteine 2019-07-21 20:13:36 -05:00
parent dc6fa04f68
commit 7501e40e0b
1 changed files with 1 additions and 1 deletions
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Marlin/src/HAL/HAL_STM32F1/HAL_spi_STM32F1.cpp
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@ -80,7 +80,7 @@ void spiBegin() {
*/ */
void spiInit(uint8_t spiRate) { void spiInit(uint8_t spiRate) {
/** /**
* STM32F1 APB1 = 72MHz, APB2 = 36MHz, max SPI speed of this MCU if 18Mhz * STM32F1 APB1 = 36MHz, APB2 = 72MHz, max SPI speed of this MCU if 18Mhz
* STM32F1 has 3 SPI ports, SPI1 in APB1, SPI2/SPI3 in APB2 * STM32F1 has 3 SPI ports, SPI1 in APB1, SPI2/SPI3 in APB2
* so the minimum prescale of SPI1 is DIV4, SPI2/SPI3 is DIV2 * so the minimum prescale of SPI1 is DIV4, SPI2/SPI3 is DIV2
*/ */