Solved
MPL115A2 withSTM32 NUCLEO-H723ZG
Hello! I didn't find Driver of MPL115A2 for STM32, I tried to create a simple one
I'm not able to get dynamic data from the sensor.
I connected it as below:
VDD > STM32 3.3V
GND > STM32 GND
SCL > PB8
SDA > PB9
HSR > not connected
SDWN > not connected
This is the code i'm trying
// MPL115A2 registers with bit shifts for I2C communication
#define MPL115A2_REG_PRESSURE_MSB 0x00 // Padc_MSB
#define MPL115A2_REG_PRESSURE_LSB 0x01 // Padc_LSB
#define MPL115A2_REG_TEMP_MSB 0x02 // Tadc_MSB
#define MPL115A2_REG_TEMP_LSB 0x03 // Tadc_LSB
#define MPL115A2_REG_A0_MSB 0x04 // a0_MSB
#define MPL115A2_REG_A0_LSB 0x05 // a0_LSB
#define MPL115A2_REG_B1_MSB 0x06 // b1_MSB
#define MPL115A2_REG_B1_LSB 0x07 // b1_LSB
#define MPL115A2_REG_B2_MSB 0x08 // b2_MSB
#define MPL115A2_REG_B2_LSB 0x09 // b2_LSB
#define MPL115A2_REG_C12_MSB 0x0A // c12_MSB
#define MPL115A2_REG_C12_LSB 0x0B // c12_LSB
#define MPL115A2_REG_CONVERT 0x12 // CONVERT
// Perform a memory read to read the value from the specified register
status = HAL_I2C_Mem_Read(
&hi2c1,
(0x60<<1), // The i2c address of the device.
reg, // the target registery address according the datasheet.
I2C_MEMADD_SIZE_8BIT, // the memory size to get
&value, //This is where to store the value from the device..
1, // Store 1 byte.
HAL_MAX_DELAY); // Maxmum delay.
if (status != HAL_OK) {
printf("I2C Memory Read Error: %d\r\n", status);
return 0;
}
return value;
}
// Function to read temperature from MPL115A2
void readTemperature(void)
{
printf(readRegister(MPL115A2_REG_PRESSURE_MSB));
printf(readRegister(MPL115A2_REG_PRESSURE_LSB));
printf(readRegister(MPL115A2_REG_TEMP_MSB));
printf(readRegister(MPL115A2_REG_TEMP_LSB));
printf(readRegister(MPL115A2_REG_A0_MSB));
printf(readRegister(MPL115A2_REG_A0_LSB));
printf(readRegister(MPL115A2_REG_B1_MSB));
printf(readRegister(MPL115A2_REG_B1_LSB));
printf(readRegister(MPL115A2_REG_B2_MSB));
printf(readRegister(MPL115A2_REG_B2_LSB)); // 0x09
printf(readRegister(MPL115A2_REG_C12_MSB)); // 0x0A
printf(readRegister(MPL115A2_REG_C12_LSB)); // 0x0B
printf(readRegister(MPL115A2_REG_CONVERT)); // 0x12
printf(readRegister(0x0c));
printf(readRegister(0x0d));
printf(readRegister(0x0e));
userConsole(readRegister(0x0f));
}
while (1)
{
HAL_Delay(1000);
readTemperature();
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
I'm getting data to console like this: (Static data, no temperature data):
71
71
68
68
170
170
126
126
181
181
89
89
58
58
208
208
13
0
0
0
14
0
0
0
96
15
0
0
any help is appricated.
Best regards