SPI Internal Helpers

Functions
static void	spi_set_pclk (SPI_REGDEF_ts const *instance, EN_STATUS_te en_status)
	Enables or disables the peripheral clock for an SPI instance.

Detailed Description

Function Documentation

spi_set_pclk()

void spi_set_pclk ( SPI_REGDEF_ts const * instance, EN_STATUS_te en_status )

static

Enables or disables the peripheral clock for an SPI instance.

Routes to the appropriate RCC APB1 or APB2 clock enable/disable call:

• SPI1, SPI4 are on APB2.
• SPI2, SPI3 are on APB1.

Called by spi_init and spi_deinit.

Parameters

[in]	instance	Pointer to the SPI peripheral instance.
[in]	en_status	ENABLE to enable the clock, DISABLE to disable it.

Definition at line 181 of file stm32f401re_spi.c.

                                                                                {
    if(instance == SPI1) {
        rcc_set_pclk_apb2(RCC_APB2ENR_SPI1EN, en_status);
    }
    else if(instance == SPI2) {
        rcc_set_pclk_apb1(RCC_APB1ENR_SPI2EN, en_status);
    }
    else if(instance == SPI3) {
        rcc_set_pclk_apb1(RCC_APB1ENR_SPI3EN, en_status);
    }
    else if(instance == SPI4) {
        rcc_set_pclk_apb2(RCC_APB2ENR_SPI4EN, en_status);
    }
}

Here is the call graph for this function:

Here is the caller graph for this function: