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Alexander 2024-07-09 22:11:17 -04:00
parent 149a41c2be
commit 8e0cb52028
2 changed files with 5 additions and 5 deletions
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10
ESP32-IDF_BMP280/main/main.c
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@ -38,9 +38,9 @@ static const char *TAG = "i2c-simple-example";
#define I2C_MASTER_TX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
#define I2C_MASTER_RX_BUF_DISABLE 0 /*!< I2C master doesn't need buffer */
#define I2C_MASTER_TIMEOUT_MS 1000
#define I2C_ACKS
#define I2C_ACKM
#define I2C_NOACKM
#define I2C_ACKS 0x1
#define I2C_ACKM 0x0
#define I2C_NOACKM 0x1 // I2C NACK value
#define MPU9250_SENSOR_ADDR 0x76 /*!< Slave address of the MPU9250 sensor */
#define MPU9250_WHO_AM_I_REG_ADDR 0xD0 /*!< Register addresses of the "who am I" register */
@ -142,9 +142,9 @@ void app_main(void)
uint8_t address = 0x76;
i2c_cmd_handle_t command = i2c_cmd_link_create();
i2c_master_start(command);
i2c_master_write_byte(command, (address << 1) | I2C_MASTER_WRITE, 0x1); // 0x1 -> check ACK from slave
i2c_master_write_byte(command, (address << 1) | I2C_MASTER_WRITE, I2C_ACKS);// 0x1); // 0x1 -> check ACK from slave
i2c_master_stop(command);
esp_err_t cmd_ret = i2c_master_cmd_begin(I2C_NUM_0, command, 1000 / portTICK_PERIOD_MS);
esp_err_t cmd_ret = i2c_master_cmd_begin(I2C_NUM_0, command, I2C_MASTER_TIMEOUT_MS / portTICK_PERIOD_MS);
i2c_cmd_link_delete(command);
i2c_driver_delete(I2C_NUM_0);
if (cmd_ret == ESP_OK)

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