HAL库 STM32H7 硬件SPI DAC8760

#include "bsp_spi_dac8760_driver.h" #include <stdio.h> #include "myLogger.h" DAC_Ctrl_u dac_ctrl; DAC_Config_u dac_config; static int8_t dac8760_spi_init(void) { return 0; } static int8_t dac8760_cs_init(void) { return 0; } static void Dac8760Select(void) { HAL_GPIO_WritePin(DAC8760_CS_GPIO_PORT, DAC8760_CS_GPIO_PIN, GPIO_PIN_RESET); } static void Dac8760Deselect(void) { HAL_GPIO_WritePin(DAC8760_CS_GPIO_PORT, DAC8760_CS_GPIO_PIN, GPIO_PIN_SET); } /** * @brief Dac8760TxRx 使用SPI发送/接收数据 * @param pTxData - 要发送的数据 * Size - 数据长度 * Timeout - 超时时间(单位ms) * pRxData - 接收缓冲区 * @retval 0 - 成功, (-1)-失败 * @attention * (注意这个函数没有设置片选信号) */ static int Dac8760TxRx(uint8_t *pTxData, uint8_t *pRxData, uint16_t Size, uint32_t Timeout) { if (HAL_OK == HAL_SPI_TransmitReceive(&HSPI_DAC8760, pTxData, pRxData, Size, Timeout)) return 0; else return -1; } /** * @brief Dac8760Tx 使用SPI发送数据 * @param pTxData - 要发送的数据 * Size - 数据长度 * Timeout - 超时时间(单位ms) * @retval 0 - 成功, (-1)-失败 * @attention * (注意这个函数没有设置片选信号) */ static int Dac8760Tx(uint8_t *pTxData, uint16_t Size, uint32_t Timeout) { if (HAL_OK == HAL_SPI_Transmit(&HSPI_DAC8760, pTxData, Size, Timeout)) return 0; else return -1; } /** * @brief Dac8760Rx 使用SPI读取数据 * @param pRxData - 接收缓冲区 * Size - 数据长度 * Timeout - 超时时间(单位ms) * @retval 0 - 成功, (-1)-失败 * @attention * (注意这个函数没有设置片选信号) */ static int Dac8760Rx(uint8_t *pRxData, uint16_t Size, uint32_t Timeout) { if (HAL_OK == HAL_SPI_Receive(&HSPI_DAC8760, pRxData, Size, Timeout)) return 0; else return -1; } /** * @brief Dac8760Write 写函数 * @param addr - 写哪个地址, 写操作 * data - 写数据 * @retval 0 - 成功, 非0 - 失败 * @attention * */ int Dac8760Write(uint8_t addr, uint16_t data) { uint8_t tmpbuf[3]; int ret; tmpbuf[0] = addr; tmpbuf[1] = (data >> 8) & 0xff; tmpbuf[2] = (data >> 0) & 0xff; Dac8760Select(); ret = Dac8760Tx(tmpbuf, 3, DAC8760_TIMEOUT); Dac8760Deselect(); return ret; } /** * @brief Dac8760Read 读函数 * @param addr_r - 读哪个地址 * data - 用来保存读到的数据 * @retval 0 - 成功, 非0 - 失败 * @attention * */ int Dac8760Read(uint8_t addr_r, uint16_t *data) { uint8_t tmpbuf[3], rcvbuf[3]; int ret; tmpbuf[0] = W_ADDR_READ; tmpbuf[1] = 0x00; tmpbuf[2] = addr_r; Dac8760Select(); /* 发送写命令 */ ret = Dac8760Tx(tmpbuf, 3, DAC8760_TIMEOUT); if (ret) { Dac8760Deselect(); return ret; } Dac8760Deselect(); HAL_Delay(1); Dac8760Select(); ret = Dac8760Rx(rcvbuf, 3, DAC8760_TIMEOUT); Dac8760Deselect(); *data = rcvbuf[1]; *data <<= 8; *data |= rcvbuf[2]; return ret; } int Dac8760_WriteCtrl(DAC_Ctrl_u *dac_data) { uint8_t tmpbuf[3]; int ret; tmpbuf[0] = W_ADDR_CTRL; tmpbuf[1] = (dac_data->all >> 8) & 0xff; tmpbuf[2] = (dac_data->all >> 0) & 0xff; Dac8760Select(); ret = HAL_SPI_Transmit(&HSPI_DAC8760, tmpbuf, 3, DAC8760_TIMEOUT); Dac8760Deselect(); return ret; } int Dac8760_WriteConfig(DAC_Config_u *dac_data) { uint8_t tmpbuf[3]; int ret; tmpbuf[0] = R_ADDR_CONFIG; tmpbuf[1] = (dac_data->all >> 8) & 0xff; tmpbuf[2] = (dac_data->all >> 0) & 0xff; Dac8760Select(); ret = Dac8760Tx(tmpbuf, 3, DAC8760_TIMEOUT); Dac8760Deselect(); return ret; } /** * @brief Dac8760Read 读函数 * @param addr_r - 读哪个地址 * @retval data - 读到的数据 * @attention */ uint16_t Dac8760_Read(uint8_t addr_r) { uint8_t tmpbuf[3], rcvbuf[3]; uint16_t data; tmpbuf[0] = W_ADDR_READ; tmpbuf[1] = 0x00; tmpbuf[2] = addr_r; Dac8760Select(); Dac8760Tx(tmpbuf, 3, DAC8760_TIMEOUT); Dac8760Deselect(); HAL_Delay(1); Dac8760Select(); Dac8760Rx(rcvbuf, 3, DAC8760_TIMEOUT); Dac8760Deselect(); data = rcvbuf[1] << 8; data |= rcvbuf[2]; return data; } void Dac8760_Reset(void) { Dac8760Write(W_ADDR_RESET,0x0001); // 0x0001执行软件复位 } void DAC8760_SetRange(uint8_t Range) { dac_ctrl.bit.outen = 1; // 由range确定输出范围 dac_ctrl.bit.range = Range; // 设置电压/电流的输出范围 Dac8760_WriteCtrl(&dac_ctrl); } int DAC8760_Output(double percent) { uint16_t value = 65535*percent; return Dac8760Write(W_ADDR_DATA,value); } void DAC8760_Init(void) { /* 1 软件复位*/ Dac8760_Reset(); /* 2 片选信号引脚配置，已在gpio.c中被配置为输出引脚*/ dac8760_cs_init(); /* 3 SPI配置，SPI已在spi.c中配置好 */ dac8760_spi_init(); /* 4 配置 */ dac_config.bit.dual_outen = 0; // 双输出失能 dac_config.bit.apd = 0; // 备用电源关闭 Dac8760_WriteConfig(&dac_config); DAC8760_SetRange(V_0_P10); } void Dac8760Test(void) { int ret; // uint16_t temp; dac_ctrl.all = Dac8760_Read(R_ADDR_CTRL); LOG("dac_ctrl = %d\n", dac_ctrl.all); dac_config.all = Dac8760_Read(R_ADDR_CONFIG); LOG("dac_config = %d\n", dac_config.all); // ret = Dac8760Read(R_ADDR_CTRL, &temp); // LOG("ret = %d\t temp = %d\n", ret, temp); ret = DAC8760_Output(0); LOG("ret = %d\t value = 0\n", ret); HAL_Delay(5000); ret = DAC8760_Output(0.5); LOG("ret = %d\t value = 5V\n", ret); HAL_Delay(5000); ret = DAC8760_Output(1); LOG("ret = %d\t value = 10V\n", ret); HAL_Delay(5000); }