diff --git a/Inc/board_config.h b/Inc/board_config.h index 4802acf..5b43610 100644 --- a/Inc/board_config.h +++ b/Inc/board_config.h @@ -16,6 +16,11 @@ // #define DEBUG_VERBOSE // Debug Assertions Status : Debug Verbose Information #undef DEBUG_VERBOSE // Debug Assertions Status : No Debug Verbose Information +/* >>>>>>>>>>>>>>>>>>>>[EDDY DRIVE CURRENT DETECTION]<<<<<<<<<<<<<<<<<<<< */ + +// #define EDDY_DRIVE_CURRENT_DETECTION // Eddy Drive Current Detection : Enable +#undef EDDY_DRIVE_CURRENT_DETECTION // Eddy Drive Current Detection : Disable + /******************************************************************************/ #define RCU_GPIO_I2C RCU_GPIOF diff --git a/Inc/ldc1612.h b/Inc/ldc1612.h index 5803a33..58be608 100644 --- a/Inc/ldc1612.h +++ b/Inc/ldc1612.h @@ -34,58 +34,151 @@ #define LDC1612_ADDR 0x2B -/*Register Rddr*/ -/***************************************************************************/ +/************************Register Addr***************************************/ #define CONVERTION_RESULT_REG_START 0X00 #define SET_CONVERSION_TIME_REG_START 0X08 #define SET_CONVERSION_OFFSET_REG_START 0X0C -#define SET_LC_STABILIZE_REG_START 0X10 +#define SET_SETTLECOUNT_REG_START 0X10 #define SET_FREQ_REG_START 0X14 #define SENSOR_STATUS_REG 0X18 #define ERROR_CONFIG_REG 0X19 #define SENSOR_CONFIG_REG 0X1A -#define MUL_CONFIG_REG 0X1B +#define MUX_CONFIG_REG 0X1B #define SENSOR_RESET_REG 0X1C #define SET_DRIVER_CURRENT_REG 0X1E #define READ_MANUFACTURER_ID 0X7E #define READ_DEVICE_ID 0X7F -/******************************************************************************/ +/**********************Sensor Channel****************************************/ #define CHANNEL_0 0 #define CHANNEL_1 1 -/*************************MUX_CONFIG********************************************/ -#define LDC1612_MUX_CONFIG 0x0200 +/*************************MUX_CONFIG******************************************** + * 0x0209 AutoScanEN: 0 / RR_SEQ: 00 / RESERVED: 0 0010 0000 1 / Deglitch: 001( 1MHz) + * 0x020C AutoScanEN: 0 / RR_SEQ: 00 / RESERVED: 0 0010 0000 1 / Deglitch: 100(3.3MHz) + * 0x020D AutoScanEN: 0 / RR_SEQ: 00 / RESERVED: 0 0010 0000 1 / Deglitch: 100( 10MHz) + * 0x020F AutoScanEN: 0 / RR_SEQ: 00 / RESERVED: 0 0010 0000 1 / Deglitch: 100( 33MHz) +*/ +#define LDC1612_MUX_CONFIG 0x020C -/***********************SENSOR_CONFIG********************************************/ +/***********************SENSOR_CONFIG******************************************** + * 0x1601 Active CH0: 00 / SLEEP: 0 / OVERDRIVE: 1 / LowPowerMode: 0 / AutoAmpDis 1 / CLK(ext): 1 / RESERVED: 0 / INTB_Dis : 0 / HighCurrent: 0 / RESERVED: 00 0001 + * 0x1201 Active CH0: 00 / SLEEP: 0 / OVERDRIVE: 1 / LowPowerMode: 0 / AutoAmpDis 0 / CLK(ext): 1 / RESERVED: 0 / INTB_Dis : 0 / HighCurrent: 0 / RESERVED: 00 0001 + * 0x1641 Active CH0: 00 / SLEEP: 0 / OVERDRIVE: 1 / LowPowerMode: 0 / AutoAmpDis 1 / CLK(ext): 1 / RESERVED: 0 / INTB_Dis : 0 / HighCurrent: 1 / RESERVED: 00 0001 + * 0x1241 Active CH0: 00 / SLEEP: 0 / OVERDRIVE: 1 / LowPowerMode: 0 / AutoAmpDis 0 / CLK(ext): 1 / RESERVED: 0 / INTB_Dis : 0 / HighCurrent: 1 / RESERVED: 00 0001 +*/ -#define LDC1612_SENSOR_CONFIG_CH0 0x1601 // +#ifdef EDDY_DRIVE_CURRENT_DETECTION + #define LDC1612_SENSOR_CONFIG_CH0 0x1241 +#else + #define LDC1612_SENSOR_CONFIG_CH0 0x1641 +#endif +#define LDC1612_SLEEP_MODE 0x2801 -/****************************CONVERSION_TIME************************************/ -#define LDC1612_CONVERSION_TIME_CH0 0x1000 // 0x1000=4096个时钟周期 -#define LC_STABILIZE_TIME_CH0 0x0020 // 0x0020=32个时钟周期 +/****************************CONVERSION_TIME************************************ + * Freq_ref = 40MHz / CHx_FREF_DIVIDER + * ******RCOUNT_CHx******* + * Reference Count Conversion Interval Time + * 0x0005 ~ 0xFFFF + * default: 0x0080 + * RCOUNT_CHx * 16 / Freq_ref = Conversion Interval Time + * + * ******SETTLECOUNT_CHx******* + * Conversion Settling Time + * 0x0000 ~ 0xFFFF + * default: 0x0000 + * SETTLECOUNT_CHx * 16 / Freq_ref = Conversion Settling Time + * 0x1000 4096*16个时钟周期 + * 0x0100 256*16个时钟周期 + * 0x0000/0x0001 32*16个时钟周期 + * + * ******RCOUNT_CHx******* +*/ +#define LDC1612_RCOUNT_TIME_CH0 0x1000 // 0x1000=4096个时钟周期 +#define LDC1612_SETTLECOUNT_CH0 0x0100 -/**************************DRIVE_CURRENT****************************************/ -#define LDC1612_DRIVE_CURRENT 0x9000 //A000 +/**************************DRIVE_CURRENT**************************************** + * 0xA000 CH_IDRIVE: 1010 0 / CH_INIT_IDRIVE: 000 00 / RESERVED: 00 0000 + * 0x9000 CH_IDRIVE: 1001 0 / CH_INIT_IDRIVE: 000 00 / RESERVED: 00 0000 + * CH_INIT_IDRIVE will update when every conversion systick ==>AutoAmpDis is 0 + * CH_INIT_IDRIVE will store init drive current calculated ==> AutoAmpDis is 1 +*/ +#define LDC1612_DRIVE_CURRENT 0x9000 /**************************SENSOR_CONFIG***************************************/ -#define LDC1612_SLEEP_MODE 0x2801 -/**************************OTHER_CONFIG*****************************************/ + + + +/**************************ERROR_CONFIG**************************************** + * [15] Under-Range ERR to OUT (DATA_CHx.CHx_ERR_UR) + * [14] Over-Range ERR to OUT (DATA_CHx.CHx_ERR_OR) + * [13] Watchdog-Timeout ERR to OUT (DATA_CHx.CHx_ERR_WD) + * [12] Amplitude-High-Error ERR to OUT (DATA_CHx.CHx_ERR_AE) + * [11] Amplitude-Low-Error ERR to OUT (DATA_CHx.CHx_ERR_AE) + * [10] RESERVED + * [ 9] RESERVED + * [ 8] RESERVED + * [ 7] Under-Range ERR to INTB (STATUS.ERR_UR) + * [ 6] Over-Range ERR to INTB (STATUS.ERR_OR) + * [ 5] Watchdog-Timeout ERR to INTB (STATUS.ERR_WD) + * [ 4] Amplitude-High-Error ERR to INTB (STATUS.ERR_AHE) + * [ 3] Amplitude-Low-Error ERR to INTB (STATUS.ERR_ALE) + * [ 2] Zero_Count_Error ERR to INTB (STATUS.ERR_ZC) + * [ 1] RESERVED + * [ 0] Data_Ready_Flag to INTB (STATUS.DRDY) + * + * 0x0000 No ERR to OUT or INTB +*/ + #define LDC1612_ERROR_CONFIG 0x0000 + +/**************************STATUS**************************************** + * [15] + * [14] Error Channel 0b00: CH0 / 0b01: CH1 / 0b10: CH2 / 0b11: CH3 + * [13] Conversion Under-Range Error 0b0: No / 0b1: Yes + * [12] Conversion Over-Range Error 0b0: No / 0b1: Yes + * [11] Watchdog Timeout Error 0b0: No / 0b1: Yes + * [10] Amplitude High Error 0b0: No / 0b1: Yes + * [ 9] Amplitude Low Error 0b0: No / 0b1: Yes + * [ 8] Zero Count Error 0b0: No / 0b1: Yes + * [ 7] RESERVED + * [ 6] Ddata Ready Flag 0b0: No new results / 0b1: New results available + * [ 5] RESERVED + * [ 4] RESERVED + * [ 3] CH0 Unread Conversion Result 0b0: No / 0b1: Yes(DATA_CH0) + * [ 2] CH1 Unread Conversion Result 0b0: No / 0b1: Yes(DATA_CH1) + * [ 1] CH2 Unread Conversion Result 0b0: No / 0b1: Yes(DATA_CH2) + * [ 0] CH3 Unread Conversion Result 0b0: No / 0b1: Yes(DATA_CH3) + * + * 0x0000 No ERR to OUT or INTB +*/ + +/*****************CONVERSION_OFFSET_CONFIG****************************************/ + #define SET_CONVERSION_OFFSET_CH0 0x0000 + +/***********************RESET DEVICE******************************************** +0x8000 RESET_DEV: 1 / RESERVED: 000 0000 0000 0000 +*/ + #define LDC1612_RESET_DEV 0x8000 //[15:0] 0b1000 0000 0000 0000 +/***********************IDs****************************************************/ + +#define LDC1612_MANUFACTURER_ID 0x5449 +#define LDC1612_DEVICE_ID 0x3055 + /******************************************************************************/ #define COIL_RP_KOM 7.2 -#define COIL_L_UH 33 +#define COIL_L_UH 11.22 #define COIL_C_PF 150 -#define COIL_Q_FACTOR 35.97 -#define COIL_FREQ_HZ 2262000 +#define COIL_Q_FACTOR 31.09 +#define COIL_FREQ_HZ 5323770 /******************************************************************************/ @@ -112,7 +205,7 @@ uint16_t ldc1612_get_deveice_id(void); uint32_t ldc1612_get_raw_channel_result(uint8_t channel); -uint32_t ldc1612_parse_raw_result(uint32_t raw_result); +void ldc1612_drvie_current_detect(uint8_t channel); uint16_t ldc1612_get_sensor_status(void); diff --git a/Src/ldc1612.c b/Src/ldc1612.c index ee2cbe2..29348ca 100644 --- a/Src/ldc1612.c +++ b/Src/ldc1612.c @@ -137,10 +137,10 @@ ldc1612_status_t ldc1612_config_single_channel(uint8_t channel) { delay_ms(5); /* Step 3: 配置LC稳定时间 - 影响测量精度 */ - ldc1612_write_register(SET_LC_STABILIZE_REG_START + channel, LC_STABILIZE_TIME_CH0); + ldc1612_write_register(SET_SETTLECOUNT_REG_START + channel, LDC1612_SETTLECOUNT_CH0); /* Step 4: 配置转换时间 - 影响测量速度和精度 */ - ldc1612_write_register(SET_CONVERSION_TIME_REG_START + channel, LDC1612_CONVERSION_TIME_CH0); + ldc1612_write_register(SET_CONVERSION_TIME_REG_START + channel, LDC1612_RCOUNT_TIME_CH0); /* Step 5: 配置转换偏移 */ ldc1612_write_register(SET_CONVERSION_OFFSET_REG_START + channel, SET_CONVERSION_OFFSET_CH0); @@ -150,7 +150,7 @@ ldc1612_status_t ldc1612_config_single_channel(uint8_t channel) { /* Step 7: 配置多路复用器 - 设置通道选择和滤波 */ // ldc1612_configure_mux_register(LDC1612_MUX_AUTOSCAN_DISABLE, LDC1612_MUX_RR_SEQUENCE_0, LDC1612_MUX_FILTER_ALL_LOW, LDC1612_MUX_FILTER_NONE); - ldc1612_write_register(MUL_CONFIG_REG, LDC1612_MUX_CONFIG); + ldc1612_write_register(MUX_CONFIG_REG, LDC1612_MUX_CONFIG); /* Step 8: 配置错误输出 */ ldc1612_write_register(ERROR_CONFIG_REG, LDC1612_ERROR_CONFIG); @@ -174,43 +174,53 @@ uint32_t ldc1612_get_raw_channel_result(uint8_t channel) { uint8_t value[2] = {0}; /* Read MSW */ - LDC1612_IIC_READ_16BITS(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel, value); + LDC1612_IIC_READ_16BITS(LDC1612_ADDR, CONVERTION_RESULT_REG_START + (channel * 2), value); raw_value |= (uint32_t)(((uint16_t)value[0] << 8) | value[1]) << 16; /* Read LSW */ - LDC1612_IIC_READ_16BITS(LDC1612_ADDR, CONVERTION_RESULT_REG_START + channel + 1, value); + LDC1612_IIC_READ_16BITS(LDC1612_ADDR, CONVERTION_RESULT_REG_START + 1 + (channel * 2), value); raw_value |= (uint32_t)(((uint16_t)value[0] << 8) | value[1]); + uint32_t calibration_value = raw_value & 0x0FFFFFFF; if (calibration_value == 0x0FFFFFFF) { return 0xF0000000; /* No coil */ } - uint8_t error_code = (uint8_t)(raw_value >> 24); - if (error_code & 0x80) return 0x80000000; /* Under range */ - if (error_code & 0x40) return 0x40000000; /* Over range */ - if (error_code & 0x20) return 0x20000000; /* Watchdog */ - if (error_code & 0x10) return 0x10000000; /* Amplitude error */ + if (LDC1612_ERROR_CONFIG & 0xF800) { + uint8_t error_code = (uint8_t)(raw_value >> 24); + if (error_code & 0x80) return 0x80000000; /* Under range */ + if (error_code & 0x40) return 0x40000000; /* Over range */ + if (error_code & 0x20) return 0x20000000; /* Watchdog */ + if (error_code & 0x10) return 0x10000000; /* Amplitude error */ + } return raw_value; } -// void ldc1612_drvie_current_detect(uint8_t channel) { -// uint8_t data[2] = {0}; -// uint16_t init_value = 0 , drive_current = 0; +void ldc1612_drvie_current_detect(uint8_t channel) { + uint8_t data[2] = {0}; + uint16_t init_value = 0 , drive_current = 0; -// ldc1612_set_sensor_config(LDC1612_SLEEP_MODE); -// ldc1612_configure_frequency(channel); -// LDC1612_IIC_READ_16BITS(LDC1612_ADDR, SENSOR_CONFIG_REG, data); -// ldc1612_set_sensor_config(LDC1612_SLEEP_MODE); -// ldc1612_set_sensor_config(LDC1612_SENSOR_CONFIG_CH0); //0x1A --0x1601 -// delay_ms(10); -// LDC1612_IIC_READ_16BITS(LDC1612_ADDR, SET_DRIVER_CURRENT_REG, data); + ldc1612_write_register(SENSOR_CONFIG_REG, LDC1612_SLEEP_MODE); + delay_ms(10); + + uint16_t freq_divider = ldc1612_calculate_freq_divider(channel); + ldc1612_write_register(SET_FREQ_REG_START + channel, freq_divider); + delay_ms(5); -// init_value = (((data[0] << 8) | data[1]) >> 6) & 0x1F; -// drive_current = (init_value << 11) | 0x0000; -// printf("init value: 0x%x\tdrive current: 0x%x\n", init_value, drive_current); -// } + LDC1612_IIC_READ_16BITS(LDC1612_ADDR, SENSOR_CONFIG_REG, data); + // ldc1612_set_sensor_config(LDC1612_SLEEP_MODE); + ldc1612_write_register(SENSOR_CONFIG_REG, LDC1612_SLEEP_MODE); + delay_ms(10); + ldc1612_write_register(SENSOR_CONFIG_REG, LDC1612_SENSOR_CONFIG_CH0); + delay_ms(10); + LDC1612_IIC_READ_16BITS(LDC1612_ADDR, SET_DRIVER_CURRENT_REG, data); + + init_value = (((data[0] << 8) | data[1]) >> 6) & 0x1F; + drive_current = (init_value << 11) | 0x0000; + printf("init value: 0x%x\tdrive current: 0x%x\n", init_value, drive_current); +} /** @brief Get sensor status register @return Status register value diff --git a/Src/main.c b/Src/main.c index 4460d1b..db70af5 100644 --- a/Src/main.c +++ b/Src/main.c @@ -80,10 +80,27 @@ int main(void) ldc1612_init(); ldc1612_config_single_channel(CHANNEL_0); +#ifdef EDDY_DRIVE_CURRENT_DETECTION + ldc1612_drvie_current_detect(CHANNEL_0); +#endif + while(1){ +#ifndef EDDY_DRIVE_CURRENT_DETECTION command_process(); delay_ms(10); if (g_sensor_report_enabled) eddy_current_report(); + + + + + +#else + ldc1612_drvie_current_detect(CHANNEL_0); + delay_ms(1000); +#endif + + + } } diff --git a/doc/Setting LDC13124, LDC16124, and LDC1101 Sensor DriveConfiguration.pdf b/doc/Setting LDC13124, LDC16124, and LDC1101 Sensor DriveConfiguration.pdf new file mode 100644 index 0000000..c32bf5c Binary files /dev/null and b/doc/Setting LDC13124, LDC16124, and LDC1101 Sensor DriveConfiguration.pdf differ diff --git a/doc/Texas_Instruments-LDC1612QDNTTQ1-datasheet.pdf b/doc/Texas_Instruments-LDC1612QDNTTQ1-datasheet.pdf new file mode 100644 index 0000000..d80c77b Binary files /dev/null and b/doc/Texas_Instruments-LDC1612QDNTTQ1-datasheet.pdf differ diff --git a/doc/采用 LDC 的电感式检测应用的传感器设计 (Rev. C).pdf b/doc/采用 LDC 的电感式检测应用的传感器设计 (Rev. C).pdf new file mode 100644 index 0000000..395721c Binary files /dev/null and b/doc/采用 LDC 的电感式检测应用的传感器设计 (Rev. C).pdf differ