#ifndef _BSP_SPI_H #define _BSP_SPI_H #include "at32a423.h" #define SPI_SLAVE_CS_READ() gpio_input_data_bit_read(GPIOA, GPIO_PINS_4) void spi1_init(uint8_t *buffer, uint16_t buffer_size); uint8_t spi_tx_rx_buffer(uint8_t *tx_buffer, uint8_t *rx_buffer, uint16_t buffer_len); #endif