Open iotdevoted45 opened 1 year ago
hello @ryker1990
I'm trying to read ADC count by I2C based ADC121C021 module with help of this code but Im only getting ESP_FAIL
static esp_err_t read_ADS(i2c_port_t i2c_num, uint8_t *data_h, uint8_t *data_l){ int ret; i2c_cmd_handle_t cmd = i2c_cmd_link_create(); i2c_master_start(cmd); i2c_master_write_byte(cmd, ADS_ADDRESS | WRITE_FLAG, 0x01); i2c_master_write_byte(cmd, 0x00, 0x00); i2c_master_stop(cmd); ret = i2c_master_cmd_begin(i2c_num, cmd, 1000 / portTICK_RATE_MS); // (here fun return) i2c_cmd_link_delete(cmd); if (ret != ESP_OK) { return ret; } vTaskDelay(400 / portTICK_RATE_MS); cmd = i2c_cmd_link_create(); i2c_master_start(cmd); i2c_master_write_byte(cmd, ADS_ADDRESS | WRITE_FLAG, 0x01); i2c_master_write_byte(cmd, 0x20, 0x01); i2c_master_stop(cmd); ret = i2c_master_cmd_begin(i2c_num, cmd, 1000 / portTICK_RATE_MS); i2c_cmd_link_delete(cmd); cmd = i2c_cmd_link_create(); i2c_master_start(cmd); i2c_master_write_byte(cmd, ADS_ADDRESS | READ_FLAG, 0x01); i2c_master_read_byte(cmd, data_h, ACK_FLAG); i2c_master_read_byte(cmd, data_l, NACK_FLAG); i2c_master_stop(cmd); ret = i2c_master_cmd_begin(i2c_num, cmd, 1000 / portTICK_RATE_MS); i2c_cmd_link_delete(cmd); return ret; }
let me know if I'm doing something wrong. One more point I tried the Arduino based example where if I used the salve Address 0x50 its not working but If I used 0x58 its working totally fine for me Jumpers are open (for Pull_up and Address)
It's been more than 15 days now. I don't think anyone is active here ..
hello @ryker1990
I'm trying to read ADC count by I2C based ADC121C021 module with help of this code but Im only getting ESP_FAIL
let me know if I'm doing something wrong. One more point I tried the Arduino based example where if I used the salve Address 0x50 its not working but If I used 0x58 its working totally fine for me Jumpers are open (for Pull_up and Address)