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Merge pull request #9845 from jarlamsa/stm_spi_peripheral_name 

Add spi_get_peripheral_name() to stm_spi
pull/9905/head
Martin Kojtal 2019-03-01 12:15:04 +01:00 committed by GitHub
parent 7ed16fbd76 a9f0924f7b
commit 857cd9fba1
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2 changed files with 19 additions and 0 deletions
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1
targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F429xI/TARGET_NUCLEO_F429ZI/PeripheralNames.h
View File

@ -57,6 +57,7 @@ typedef enum {
UART_8 = (int)UART8_BASE
} UARTName;
#define SPI_COUNT 6
typedef enum {
SPI_1 = (int)SPI1_BASE,
SPI_2 = (int)SPI2_BASE,

18
targets/TARGET_STM/stm_spi_api.c
View File

@ -92,6 +92,24 @@ void init_spi(spi_t *obj)
}
}
SPIName spi_get_peripheral_name(PinName mosi, PinName miso, PinName sclk) {
SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
SPIName spi_sclk = (SPIName)pinmap_peripheral(sclk, PinMap_SPI_SCLK);
SPIName spi_per;
// If 3 wire SPI is used, the miso is not connected.
if (miso == NC) {
spi_per = (SPIName)pinmap_merge(spi_mosi, spi_sclk);
} else {
SPIName spi_data = (SPIName)pinmap_merge(spi_mosi, spi_miso);
spi_per = (SPIName)pinmap_merge(spi_data, spi_sclk);
}
return spi_per;
}
void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
{
struct spi_s *spiobj = SPI_S(obj);