added spi hal functions

2021-06-03 14:03:38 +02:00
parent 22384aec6a
commit dc6327b909
3 changed files with 35 additions and 1 deletions
--- a/stm32h7/spi/spiDefinitions.h
+++ b/stm32h7/spi/spiDefinitions.h
@ -10,6 +10,14 @@ namespace spi {

 void assignSpiMode(SpiModes spiMode, SPI_HandleTypeDef* spiHandle);

+/**
+ * @brief  Set SPI frequency to calculate correspondent baud-rate prescaler.
+ * @param  clock_src_freq  Frequency of clock source
+ * @param  baudrate_mbps Baudrate to set to set
+ * @retval Baudrate prescaler
+ */
+uint32_t getPrescaler(uint32_t clock_src_freq, uint32_t baudrate_mbps);
+
 }