561 lines
24 KiB
C
561 lines
24 KiB
C
#include "ad7124.h"
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#include <stdint.h> // 添加标准整型定义
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/* Error codes */
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#define INVALID_VAL -1 /* Invalid argument */
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#define COMM_ERR -2 /* Communication error on receive */
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#define AD7124_TIMEOUT -3 /* A timeout has occured */
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// 配置ad7124寄存器的值，根据实际项目的电路图进行配置，
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//比如单极性测量电压，AINM需要接AVSS，参见AD7124手册P87,AINP=0,AINM=17,需要配置{AD7124_CHANNEL_0, 0x0011, AD7124_SIZE_2, AD7124_RW},
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static ad7124_st_reg_t ad7124_regs[AD7124_REG_NO] = {
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{AD7124_STATUS, 0x00, AD7124_SIZE_1, AD7124_R}, /* AD7124_Status */
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{AD7124_ADC_CONTROL, 0x0280, AD7124_SIZE_2, AD7124_RW}, /* AD7124_ADC_Control */
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{AD7124_DATA, 0x000000, AD7124_SIZE_3, AD7124_R}, /* AD7124_Data */
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{AD7124_IOCON1, 0x000000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_IOCon1 */
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{AD7124_IOCON2, 0x0000, AD7124_SIZE_2, AD7124_RW}, /* AD7124_IOCon2 */
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{AD7124_ID, 0x02, AD7124_SIZE_1, AD7124_R}, /* AD7124_ID */
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{AD7124_ERROR, 0x000000, AD7124_SIZE_3, AD7124_R}, /* AD7124_Error */
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{AD7124_ERROR_EN, 0x000040, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Error_En */
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{AD7124_MCLK_COUNT, 0x00, AD7124_SIZE_1, AD7124_R}, /* AD7124_Mclk_Count */
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{AD7124_CHANNEL_0, 0x0011, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_0 */
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{AD7124_CHANNEL_1, 0x0031, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_1 */
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{AD7124_CHANNEL_2, 0x0051, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_2 */
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{AD7124_CHANNEL_3, 0x0071, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_3 */
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{AD7124_CHANNEL_4, 0x0091, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_4 */
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{AD7124_CHANNEL_5, 0x00B1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_5 */
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{AD7124_CHANNEL_6, 0x00D1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_6 */
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{AD7124_CHANNEL_7, 0x00F1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_7 */
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{AD7124_CHANNEL_8, 0x0111, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_8 */
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{AD7124_CHANNEL_9, 0x0131, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_9 */
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{AD7124_CHANNEL_10, 0x0151, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_10 */
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{AD7124_CHANNEL_11, 0x0171, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_11 */
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{AD7124_CHANNEL_12, 0x0191, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_12 */
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{AD7124_CHANNEL_13, 0x01B1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_13 */
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{AD7124_CHANNEL_14, 0x01D1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_14 */
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{AD7124_CHANNEL_15, 0x01F1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_15 */
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{AD7124_CONFIG_0, 0x01E0, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_0 */
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{AD7124_CONFIG_1, 0x0040, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_1 */
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{AD7124_CONFIG_2, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_2 */
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{AD7124_CONFIG_3, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_3 */
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{AD7124_CONFIG_4, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_4 */
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{AD7124_CONFIG_5, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_5 */
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{AD7124_CONFIG_6, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_6 */
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{AD7124_CONFIG_7, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_7 */
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{AD7124_FILTER_0, 0x060020, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_0 */
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{AD7124_FILTER_1, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_1 */
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{AD7124_FILTER_2, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_2 */
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{AD7124_FILTER_3, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_3 */
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{AD7124_FILTER_4, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_4 */
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{AD7124_FILTER_5, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_5 */
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{AD7124_FILTER_6, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_6 */
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{AD7124_FILTER_7, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_7 */
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{AD7124_OFFSET_0, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_0 */
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{AD7124_OFFSET_1, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_1 */
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{AD7124_OFFSET_2, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_2 */
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{AD7124_OFFSET_3, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_3 */
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{AD7124_OFFSET_4, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_4 */
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{AD7124_OFFSET_5, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_5 */
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{AD7124_OFFSET_6, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_6 */
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{AD7124_OFFSET_7, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_7 */
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{AD7124_GAIN_0, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_0 */
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{AD7124_GAIN_1, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_1 */
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{AD7124_GAIN_2, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_2 */
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{AD7124_GAIN_3, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_3 */
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{AD7124_GAIN_4, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_4 */
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{AD7124_GAIN_5, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_5 */
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{AD7124_GAIN_6, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_6 */
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{AD7124_GAIN_7, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_7 */
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};
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static ad7124_st_reg_t ad7124_channel_regs[AD7124_CHANNEL_EN_MAX] = {
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{AD7124_CHANNEL_0, 0x8011, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_0 */
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{AD7124_CHANNEL_1, 0x8031, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_1 */
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{AD7124_CHANNEL_2, 0x8051, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_2 */
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{AD7124_CHANNEL_3, 0x8071, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_3 */
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{AD7124_CHANNEL_4, 0x8091, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_4 */
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{AD7124_CHANNEL_5, 0x80B1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_5 */
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{AD7124_CHANNEL_6, 0x80D1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_6 */
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{AD7124_CHANNEL_7, 0x80F1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_7 */
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{AD7124_CHANNEL_8, 0x8111, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_8 */
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{AD7124_CHANNEL_9, 0x8131, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_9 */
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{AD7124_CHANNEL_10, 0x8151, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_10 */
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{AD7124_CHANNEL_11, 0x8171, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_11 */
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{AD7124_CHANNEL_12, 0x8191, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_12 */
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{AD7124_CHANNEL_13, 0x81B1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_13 */
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{AD7124_CHANNEL_14, 0x81D1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_14 */
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{AD7124_CHANNEL_15, 0x81F1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_15 */
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};
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ad7124_analog_t ad7124_analog[AD7124_CHANNEL_EN_MAX] = {NULL}; // AD通道采样结构体数组，用于存放AD通道采样数据
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// 为第二个AD7124设备创建寄存器数组
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static ad7124_st_reg_t ad7124_regs2[AD7124_REG_NO] = {
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{AD7124_STATUS, 0x00, AD7124_SIZE_1, AD7124_R}, /* AD7124_Status */
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{AD7124_ADC_CONTROL, 0x0280, AD7124_SIZE_2, AD7124_RW}, /* AD7124_ADC_Control */
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{AD7124_DATA, 0x000000, AD7124_SIZE_3, AD7124_R}, /* AD7124_Data */
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{AD7124_IOCON1, 0x000000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_IOCon1 */
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{AD7124_IOCON2, 0x0000, AD7124_SIZE_2, AD7124_RW}, /* AD7124_IOCon2 */
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{AD7124_ID, 0x02, AD7124_SIZE_1, AD7124_R}, /* AD7124_ID */
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{AD7124_ERROR, 0x000000, AD7124_SIZE_3, AD7124_R}, /* AD7124_Error */
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{AD7124_ERROR_EN, 0x000040, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Error_En */
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{AD7124_MCLK_COUNT, 0x00, AD7124_SIZE_1, AD7124_R}, /* AD7124_Mclk_Count */
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{AD7124_CHANNEL_0, 0x0011, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_0 */
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{AD7124_CHANNEL_1, 0x0031, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_1 */
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{AD7124_CHANNEL_2, 0x0051, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_2 */
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{AD7124_CHANNEL_3, 0x0071, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_3 */
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{AD7124_CHANNEL_4, 0x0091, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_4 */
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{AD7124_CHANNEL_5, 0x00B1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_5 */
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{AD7124_CHANNEL_6, 0x00D1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_6 */
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{AD7124_CHANNEL_7, 0x00F1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_7 */
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{AD7124_CHANNEL_8, 0x0111, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_8 */
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{AD7124_CHANNEL_9, 0x0131, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_9 */
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{AD7124_CHANNEL_10, 0x0151, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_10 */
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{AD7124_CHANNEL_11, 0x0171, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_11 */
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{AD7124_CHANNEL_12, 0x0191, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_12 */
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{AD7124_CHANNEL_13, 0x01B1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_13 */
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{AD7124_CHANNEL_14, 0x01D1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_14 */
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{AD7124_CHANNEL_15, 0x01F1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_15 */
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{AD7124_CONFIG_0, 0x01E0, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_0 */
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{AD7124_CONFIG_1, 0x0040, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_1 */
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{AD7124_CONFIG_2, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_2 */
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{AD7124_CONFIG_3, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_3 */
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{AD7124_CONFIG_4, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_4 */
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{AD7124_CONFIG_5, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_5 */
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{AD7124_CONFIG_6, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_6 */
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{AD7124_CONFIG_7, 0x0860, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Config_7 */
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{AD7124_FILTER_0, 0x060020, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_0 */
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{AD7124_FILTER_1, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_1 */
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{AD7124_FILTER_2, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_2 */
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{AD7124_FILTER_3, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_3 */
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{AD7124_FILTER_4, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_4 */
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{AD7124_FILTER_5, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_5 */
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{AD7124_FILTER_6, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_6 */
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{AD7124_FILTER_7, 0x060180, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Filter_7 */
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{AD7124_OFFSET_0, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_0 */
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{AD7124_OFFSET_1, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_1 */
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{AD7124_OFFSET_2, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_2 */
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{AD7124_OFFSET_3, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_3 */
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{AD7124_OFFSET_4, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_4 */
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{AD7124_OFFSET_5, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_5 */
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{AD7124_OFFSET_6, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_6 */
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{AD7124_OFFSET_7, 0x800000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Offset_7 */
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{AD7124_GAIN_0, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_0 */
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{AD7124_GAIN_1, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_1 */
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{AD7124_GAIN_2, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_2 */
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{AD7124_GAIN_3, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_3 */
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{AD7124_GAIN_4, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_4 */
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{AD7124_GAIN_5, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_5 */
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{AD7124_GAIN_6, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_6 */
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{AD7124_GAIN_7, 0x500000, AD7124_SIZE_3, AD7124_RW}, /* AD7124_Gain_7 */
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};
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// 为第二个AD7124设备创建通道寄存器数组
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static ad7124_st_reg_t ad7124_channel_regs2[AD7124_CHANNEL_EN_MAX] = {
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{AD7124_CHANNEL_0, 0x8011, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_0 */
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{AD7124_CHANNEL_1, 0x8031, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_1 */
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{AD7124_CHANNEL_2, 0x8051, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_2 */
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{AD7124_CHANNEL_3, 0x8071, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_3 */
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{AD7124_CHANNEL_4, 0x8091, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_4 */
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{AD7124_CHANNEL_5, 0x80B1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_5 */
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{AD7124_CHANNEL_6, 0x80D1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_6 */
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{AD7124_CHANNEL_7, 0x80F1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_7 */
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{AD7124_CHANNEL_8, 0x8111, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_8 */
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{AD7124_CHANNEL_9, 0x8131, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_9 */
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{AD7124_CHANNEL_10, 0x8151, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_10 */
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{AD7124_CHANNEL_11, 0x8171, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_11 */
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{AD7124_CHANNEL_12, 0x8191, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_12 */
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{AD7124_CHANNEL_13, 0x81B1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_13 */
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{AD7124_CHANNEL_14, 0x81D1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_14 */
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{AD7124_CHANNEL_15, 0x81F1, AD7124_SIZE_2, AD7124_RW}, /* AD7124_Channel_15 */
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};
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// 为第二个AD7124设备创建模拟数据数组
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ad7124_analog_t ad7124_analog2[AD7124_CHANNEL_EN_MAX] = {NULL};
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/**
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* @brief 无校验读取AD7124寄存器
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*
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* 读取AD7124的寄存器值，不进行校验。
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*
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* @param p_reg 指向要读取的寄存器结构的指针
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*
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* @return 读取成功返回0，失败返回负值
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*/
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int32_t ad7124_no_check_read_register(ad7124_st_reg_t *p_reg, uint8_t device_num )
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{
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int32_t ret = 0;
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uint8_t buffer[8] = {0, 0, 0, 0, 0, 0, 0, 0};
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uint8_t i = 0;
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uint8_t add_status_length = 0;
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/* Build the Command word */
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buffer[0] = AD7124_COMM_REG_WEN | AD7124_COMM_REG_RD |
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AD7124_COMM_REG_RA(p_reg->addr);
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/*
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* If this is an AD7124_DATA register read, and the DATA_STATUS bit is set
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* in ADC_CONTROL, need to read 4, not 3 bytes for DATA with STATUS
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*/
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if ((p_reg->addr == AD7124_DATA) &&
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(ad7124_regs[AD7124_ADC_CONTROL].value & AD7124_ADC_CTRL_REG_DATA_STATUS))
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{
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add_status_length = 1; // 此处是根据寄存器配置而决定,根据AD7124_ADC_CONTROL第10位决定
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}
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/* Read data from the device */
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ret = ad7124_read_write_spi(buffer, p_reg->size + 1 + add_status_length, device_num);
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if (ret < 0)
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return ret;
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/*
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* if reading Data with 4 bytes, need to copy the status byte to the STATUS
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* register struct value member
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*/
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if (add_status_length)
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{
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ad7124_regs[AD7124_STATUS].value = buffer[p_reg->size + 1];
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}
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/* Build the result */
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p_reg->value = 0;
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for (i = 1; i < p_reg->size + 1; i++)
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{
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p_reg->value <<= 8;
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p_reg->value += buffer[i];
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* @brief 向AD7124寄存器写入数据，不进行校验
|
||
*
|
||
* 将数据写入指定的AD7124寄存器，不进行数据校验。
|
||
*
|
||
* @param reg 指向要写入数据的寄存器地址和值的指针
|
||
* @return 写入结果，成功返回0，失败返回负值
|
||
*/
|
||
int32_t ad7124_no_check_write_register(ad7124_st_reg_t *reg, uint8_t device_num)
|
||
{
|
||
int32_t ret = 0;
|
||
int32_t reg_value = 0;
|
||
uint8_t wr_buf[8] = {0, 0, 0, 0, 0, 0, 0, 0};
|
||
uint8_t i = 0;
|
||
|
||
/* Build the Command word */
|
||
wr_buf[0] = AD7124_COMM_REG_WEN | AD7124_COMM_REG_WR |
|
||
AD7124_COMM_REG_RA(reg->addr);
|
||
|
||
/* Fill the write buffer */
|
||
reg_value = reg->value;
|
||
for (i = 0; i < reg->size; i++)
|
||
{
|
||
wr_buf[reg->size - i] = reg_value & 0xFF;
|
||
reg_value >>= 8;
|
||
}
|
||
|
||
/* Write data to the device */
|
||
ret = ad7124_read_write_spi(wr_buf, reg->size + 1, device_num);
|
||
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* @brief 从AD7124寄存器读取数据
|
||
*
|
||
* 该函数用于从AD7124的指定寄存器中读取数据。
|
||
*
|
||
* @param p_reg 指向一个ad7124_st_reg_t类型的指针，其中包含了要读取的寄存器的地址。
|
||
*
|
||
* @return 返回读取到的数据，如果读取失败则返回负数。
|
||
*
|
||
* 在读取寄存器之前，会先检查ERROR寄存器的SPI_IGNORE_ERR位
|
||
*/
|
||
int32_t ad7124_read_register(ad7124_st_reg_t *p_reg, uint8_t device_num)
|
||
{
|
||
int32_t ret;
|
||
|
||
if (p_reg->addr != AD7124_ERROR && (ad7124_regs[AD7124_ERROR_EN].value & AD7124_ERREN_REG_SPI_IGNORE_ERR_EN))
|
||
{
|
||
ret = ad7124_wait_for_spi_ready(AD7124_RDY, device_num); // 读寄存器之前检查ERROR寄存器的SPI_IGNORE_ERR位
|
||
|
||
if (ret < 0)
|
||
return ret;
|
||
}
|
||
ret = ad7124_no_check_read_register(p_reg, device_num);
|
||
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* @brief 向AD7124寄存器写入数据
|
||
*
|
||
* 将数据写入AD7124的指定寄存器。如果错误寄存器中启用了忽略SPI错误的功能，则在写入前会等待SPI接口准备就绪。
|
||
*
|
||
* @param p_reg 指向要写入数据的寄存器结构体的指针
|
||
*
|
||
* @return 返回写入操作的结果。如果操作成功，则返回0；否则返回负数表示错误。
|
||
*/
|
||
int32_t ad7124_write_register(ad7124_st_reg_t *p_reg, uint8_t device_num)
|
||
{
|
||
int32_t ret;
|
||
|
||
if ((ad7124_regs[AD7124_ERROR_EN].value & AD7124_ERREN_REG_SPI_IGNORE_ERR_EN))
|
||
{
|
||
ret = ad7124_wait_for_spi_ready(AD7124_RDY, device_num);
|
||
if (ret < 0)
|
||
return ret;
|
||
}
|
||
ret = ad7124_no_check_write_register(p_reg, device_num);
|
||
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* @brief 重置AD7124设备
|
||
*
|
||
* 该函数通过SPI接口向AD7124发送重置命令，并等待设备完成上电过程。
|
||
*
|
||
* @return 返回函数执行结果，成功返回0，失败返回错误码。
|
||
*/
|
||
int32_t ad7124_reset(uint8_t device_num)
|
||
{
|
||
int32_t ret = 0;
|
||
uint8_t wr_buf[8] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; // 发送64个1，复位ad7124芯片
|
||
|
||
ret = ad7124_read_write_spi(wr_buf, 8, device_num);
|
||
|
||
/* Read POR bit to clear */
|
||
ret = ad7124_wait_to_power_on(AD7124_RDY, device_num);
|
||
|
||
return ret;
|
||
}
|
||
|
||
|
||
/**
|
||
* @brief 等待SPI接口准备就绪
|
||
*
|
||
* 等待AD7124的SPI接口准备就绪，直到超时。
|
||
*
|
||
* @param timeout 超时时间（单位：毫秒）
|
||
* @return 成功返回0，超时返回AD7124_TIMEOUT
|
||
*/
|
||
int32_t ad7124_wait_for_spi_ready(uint32_t timeout, uint8_t device_num)
|
||
{
|
||
int32_t ret;
|
||
int8_t ready = 0;
|
||
|
||
while (!ready && --timeout)
|
||
{
|
||
/* Read the value of the Error Register */
|
||
ret = ad7124_read_register(&ad7124_regs[AD7124_ERROR], device_num);
|
||
if (ret < 0)
|
||
return ret;
|
||
|
||
/* Check the SPI IGNORE Error bit in the Error Register */
|
||
ready = (ad7124_regs[AD7124_ERROR].value &
|
||
AD7124_ERR_REG_SPI_IGNORE_ERR) == 0;
|
||
}
|
||
|
||
return timeout ? 0 : AD7124_TIMEOUT;
|
||
}
|
||
|
||
/**
|
||
* @brief 等待AD7124电源开启
|
||
*
|
||
* 此函数将等待AD7124设备电源开启，直到超时或检测到电源开启标志。
|
||
*
|
||
* @param timeout 超时时间
|
||
*
|
||
* @return 返回0表示成功，返回AD7124_TIMEOUT表示超时
|
||
*/
|
||
int32_t ad7124_wait_to_power_on(uint32_t timeout, uint8_t device_num)
|
||
{
|
||
int32_t ret;
|
||
int8_t powered_on = 0;
|
||
|
||
while (!powered_on && timeout--)
|
||
{
|
||
ret = ad7124_read_register(&ad7124_regs[AD7124_STATUS], device_num);
|
||
if (ret < 0)
|
||
return ret;
|
||
|
||
/* Check the POR_FLAG bit in the Status Register */
|
||
powered_on = (ad7124_regs[AD7124_STATUS].value &
|
||
AD7124_STATUS_REG_POR_FLAG) == 0;
|
||
}
|
||
|
||
return (timeout || powered_on) ? 0 : AD7124_TIMEOUT;
|
||
}
|
||
|
||
/**
|
||
* @brief 等待AD7124转换准备就绪
|
||
*
|
||
* 该函数等待AD7124完成转换并准备就绪。如果等待超时，则返回错误码。
|
||
*
|
||
* @param timeout 超时时间
|
||
* @return 成功时返回0，超时时返回AD7124_TIMEOUT
|
||
*/
|
||
int32_t ad7124_wait_for_conv_ready(uint32_t timeout, uint8_t device_num)
|
||
{
|
||
int32_t ret;
|
||
int8_t ready = 0;
|
||
|
||
while (!ready && --timeout)
|
||
{
|
||
/* Read the value of the Status Register */
|
||
ret = ad7124_read_register(&ad7124_regs[AD7124_STATUS], device_num);
|
||
if (ret < 0)
|
||
return ret;
|
||
|
||
/* Check the RDY bit in the Status Register */
|
||
ready = (ad7124_regs[AD7124_STATUS].value &
|
||
AD7124_STATUS_REG_RDY) == 0;
|
||
}
|
||
|
||
return timeout ? 0 : AD7124_TIMEOUT;
|
||
}
|
||
|
||
/**
|
||
* @brief 从AD7124读取数据
|
||
*
|
||
* 从AD7124的数据寄存器中读取数据值。
|
||
*
|
||
* @return 读取到的数据值
|
||
*/
|
||
int32_t ad7124_read_data(uint8_t device_num)
|
||
{
|
||
int32_t read_data;
|
||
/* Read the value of the Status Register */
|
||
ad7124_read_register(&ad7124_regs[AD7124_DATA], device_num);
|
||
/* Get the read result */
|
||
read_data = ad7124_regs[AD7124_DATA].value;
|
||
|
||
return read_data;
|
||
}
|
||
|
||
int32_t ad7124_get_analog(uint8_t channel_nr, uint8_t device_num)
|
||
{
|
||
int32_t read_data = 0;
|
||
ad7124_base_t *analog; // 使用基础结构体指针
|
||
ad7124_st_reg_t *regs = (device_num == 1) ? ad7124_regs : ad7124_regs2;
|
||
ad7124_st_reg_t *channel_regs = (device_num == 1) ? ad7124_channel_regs : ad7124_channel_regs2;
|
||
|
||
// 根据设备号选择正确的数据数组
|
||
if (device_num == 1) {
|
||
analog = &ad7124_analog[channel_nr].base;
|
||
} else if (device_num == 2) {
|
||
analog = &ad7124_analog2[channel_nr].base;
|
||
} else {
|
||
return -1; // 无效的设备号
|
||
}
|
||
|
||
// 配置通道寄存器
|
||
regs[AD7124_CHANNEL_0].value = channel_regs[channel_nr].value;
|
||
if (ad7124_write_register(®s[AD7124_CHANNEL_0], device_num) < 0) {
|
||
return -2; // 写寄存器失败
|
||
}
|
||
|
||
// 等待转换完成
|
||
if (ad7124_wait_for_conv_ready(AD7124_RDY, device_num) < 0) {
|
||
return -3; // 等待转换超时
|
||
}
|
||
|
||
// 读取数据
|
||
read_data = ad7124_read_data(device_num);
|
||
if (read_data < 0) {
|
||
return read_data; // 返回错误码
|
||
}
|
||
|
||
// 更新数据结构
|
||
analog->channel = channel_nr;
|
||
analog->data = read_data;
|
||
|
||
// 清除通道寄存器
|
||
regs[AD7124_CHANNEL_0].value = 0;
|
||
ad7124_write_register(®s[AD7124_CHANNEL_0], device_num);
|
||
|
||
return read_data;
|
||
}
|
||
|
||
/**
|
||
* @brief 配置AD7124设备
|
||
*
|
||
* 该函数负责初始化指定的AD7124设备，初始化寄存器。
|
||
*
|
||
* @param device_num 设备号（1或2）
|
||
* @return 初始化结果，成功返回0，失败返回负数
|
||
*/
|
||
int32_t ad7124_setup(uint8_t device_num)
|
||
{
|
||
int32_t ret;
|
||
uint8_t reg_nr;
|
||
ad7124_st_reg_t *regs = (device_num == 1) ? ad7124_regs : ad7124_regs2;
|
||
|
||
ret = ad7124_reset(device_num);
|
||
if (ret < 0)
|
||
return ret;
|
||
HAL_Delay(10);
|
||
|
||
ad7124_read_register(®s[AD7124_ID], device_num);
|
||
|
||
// 初始化设备寄存器
|
||
for (reg_nr = AD7124_STATUS; reg_nr < AD7124_OFFSET_0; reg_nr++)
|
||
{
|
||
if (regs[reg_nr].rw == AD7124_RW)
|
||
{
|
||
ret = ad7124_write_register(®s[reg_nr], device_num);
|
||
ret = ad7124_read_register(®s[reg_nr], device_num);
|
||
if (ret < 0)
|
||
break;
|
||
}
|
||
}
|
||
|
||
// 使能AD7124同步信号
|
||
HAL_GPIO_WritePin(AD7124_SYNC_GPIO_Port, AD7124_SYNC_Pin, GPIO_PIN_SET);
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* @brief 通过SPI接口对AD7124进行读写操作
|
||
*
|
||
* 通过SPI接口对AD7124进行读写操作，。
|
||
*
|
||
* @param buff 指向待传输数据的指针
|
||
* @param length 待传输数据的长度
|
||
*
|
||
* @return 传输结果，成功返回0，失败返回负数
|
||
*/
|
||
int32_t ad7124_read_write_spi(uint8_t *buff, uint8_t length, uint8_t device_num)
|
||
{
|
||
int32_t ret;
|
||
//board_spi_init(AD7124);
|
||
ad7124_cs_on(device_num);
|
||
ret = AD7124_OUT_spi_transmit_receive(buff, length);
|
||
ad7124_cs_off(device_num);
|
||
return ret;
|
||
}
|
||
|
||
|
||
|
||
// void ad7124_get_analog(uint8_t channel_nr, uint8_t device_num)
|
||
// {
|
||
// int32_t read_data;
|
||
// ad7124_st_reg_t *regs = (device_num == 1) ? ad7124_regs : ad7124_regs2;
|
||
// ad7124_st_reg_t *channel_regs = (device_num == 1) ? ad7124_channel_regs : ad7124_channel_regs2;
|
||
// ad7124_analog_t *analog = (device_num == 1) ? ad7124_analog : ad7124_analog2;
|
||
|
||
// regs[AD7124_CHANNEL_0].value = channel_regs[channel_nr].value;
|
||
// ad7124_write_register(®s[AD7124_CHANNEL_0], device_num);
|
||
|
||
// while (ad7124_wait_for_conv_ready(AD7124_RDY, device_num));
|
||
// analog[channel_nr].channel = channel_nr;
|
||
// read_data = ad7124_read_data(device_num);
|
||
// analog[channel_nr].data = read_data;
|
||
// analog[channel_nr].voltage = (float)(read_data * VREF / GAIN / AD_CODE);
|
||
|
||
// regs[AD7124_CHANNEL_0].value = 0;
|
||
// ad7124_write_register(®s[AD7124_CHANNEL_0], device_num);
|
||
// }
|
||
|