SPI communication

[User18655]

Hello,

Can anybody help me with the setting for XMC4300 Relax board?

I try to connect with ISO11813T but i can't see a clock signal with Osci.
I use a alduino Pins and U0C1.

Great thanks in advise!

#define SPI_MISO P2_2
#define SPI_MOSI P2_5
#define SPI_SCLK P2_4
#define SPI_SS   P2_3


/**
 * @brief SPI configuration structure
 */
const XMC_SPI_CH_CONFIG_t spi_config =
{
  .baudrate = 1000000,
  .selo_inversion = XMC_SPI_CH_SLAVE_SEL_INV_TO_MSLS,
  .bus_mode = XMC_SPI_CH_BUS_MODE_MASTER,
  .parity_mode = XMC_USIC_CH_PARITY_MODE_NONE
};


int main(void) {

	//XMC_GPIO_Init(ADC_nCS, &gpio_config_out);

	//XMC_GPIO_Init(GPIO_BUTTON1, &gpio_config_btn);
	//XMC_GPIO_Init(GPIO_LED1, &gpio_config_led1);



	XMC_SPI_CH_Init(XMC_SPI0_CH1, &spi_config);

	XMC_SPI_CH_SetWordLength(XMC_SPI0_CH1, 8);
	XMC_SPI_CH_SetFrameLength(XMC_SPI0_CH1, 8);

	/*Input source selected*/
	XMC_GPIO_CONFIG_t gpio_config_miso;
	gpio_config_miso.mode = XMC_GPIO_MODE_INPUT_TRISTATE;
	XMC_GPIO_Init(SPI_MISO, &gpio_config_miso);
	XMC_SPI_CH_SetInputSource(XMC_SPI0_CH1, XMC_SPI_CH_INPUT_DIN0, USIC0_C1_DX0_P2_2);

	/* Configure the clock polarity and clock delay */
	XMC_SPI_CH_ConfigureShiftClockOutput(XMC_SPI0_CH1,
			XMC_SPI_CH_BRG_SHIFT_CLOCK_PASSIVE_LEVEL_1_DELAY_DISABLED,
			XMC_SPI_CH_BRG_SHIFT_CLOCK_OUTPUT_SCLK); // CPOL=1, CPHA=0

	XMC_GPIO_CONFIG_t gpio_config_ss;
	gpio_config_ss.output_level = XMC_GPIO_OUTPUT_LEVEL_HIGH;
	gpio_config_ss.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL | USIC0_C1_DX2_P2_3;
	gpio_config_ss.output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_MEDIUM_EDGE;
	XMC_GPIO_Init(SPI_SS, &gpio_config_ss);

	XMC_GPIO_CONFIG_t gpio_config_mosi;
	gpio_config_mosi.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL | USIC0_C1_DX0_P2_5;
	gpio_config_mosi.output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_MEDIUM_EDGE;
	XMC_GPIO_Init(SPI_MOSI, &gpio_config_mosi);

	XMC_GPIO_CONFIG_t gpio_config_clk;
	gpio_config_clk.mode = XMC_GPIO_MODE_OUTPUT_PUSH_PULL_ALT2 | USIC0_C1_DX1_P2_4;
	gpio_config_clk.output_strength = XMC_GPIO_OUTPUT_STRENGTH_STRONG_MEDIUM_EDGE;
	XMC_GPIO_Init(SPI_SCLK, &gpio_config_clk);

	XMC_SPI_CH_Start(XMC_SPI0_CH1);

	while(1U)
	{
		delay(10000U);
		XMC_SPI_CH_EnableSlaveSelect(XMC_SPI0_CH1, XMC_SPI_CH_SLAVE_SELECT_0);

		XMC_GPIO_SetOutputLow(SPI_SS);

		XMC_SPI_CH_SetTransmitMode(XMC_SPI0_CH1, XMC_SPI_CH_MODE_STANDARD);

		XMC_SPI_CH_Transmit(XMC_SPI0_CH1, 0x33, XMC_SPI_CH_MODE_STANDARD);

		while((XMC_SPI_CH_GetStatusFlag(XMC_SPI0_CH1) & (XMC_SPI_CH_STATUS_FLAG_RECEIVE_INDICATION | XMC_SPI_CH_STATUS_FLAG_ALTERNATIVE_RECEIVE_INDICATION)) == 0U);

		XMC_SPI_CH_ClearStatusFlag(XMC_SPI0_CH1, XMC_SPI_CH_STATUS_FLAG_RECEIVE_INDICATION | XMC_SPI_CH_STATUS_FLAG_ALTERNATIVE_RECEIVE_INDICATION);


		XMC_GPIO_SetOutputHigh(SPI_SS);
		XMC_SPI_CH_DisableSlaveSelect(XMC_SPI0_CH1);
	}
}