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static uint8_t tx_data[1]; /**< SPI TX buffer. */ | |
static uint8_t rx_data[1]; /**< SPI RX buffer. */ | |
static uint8_t id[3]; /**< SPI RX buffer. */ | |
/**@brief Function for application main entry. | |
*/ | |
int main(void) | |
{ | |
//connect | |
spi_base_address = spi_master_init(SFLASH_SPI, SPI_MODE0, (bool)0); | |
//send the 'get id' code | |
tx_data[0] = 0x9f; | |
rx_data[0] = 0x0; | |
spi_master_tx_rx(spi_base_address, 1, (const uint8_t *)tx_data, rx_data); | |
//read the first byte back | |
tx_data[0] = 0xff; | |
rx_data[0] = 0x0; | |
spi_master_tx_rx(spi_base_address, 1, (const uint8_t *)tx_data, rx_data); | |
id[0] = rx_data[0]; | |
//read the second byte back | |
tx_data[0] = 0xff; | |
rx_data[0] = 0x0; | |
spi_master_tx_rx(spi_base_address, 1, (const uint8_t *)tx_data, rx_data); | |
id[1] = rx_data[0]; | |
//read the third byte back | |
tx_data[0] = 0xff; | |
rx_data[0] = 0x0; | |
spi_master_tx_rx(spi_base_address, 1, (const uint8_t *)tx_data, rx_data); | |
id[2] = rx_data[0]; | |
} |
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