Hello Everyone,
I am trying to interface MLX90614 sensor I2C with stm32F401 Discovery board and i have configured stm32 cube MX in standard mode. My sensor works fine and I am using logic analyser to analyse my SCL and SDA signals. However, I am getting 0x3A(NACK) in stop condition of my logic analyser. Can anyone help me how i can convert this NACK to ACK. I am attaching my code snippet and my logic analyser signal as well . Thanks for help and support.uint8_t I2C_ADDRESS = 0x00;int main (void){ HAL_StatusTypeDef status = HAL_ERROR; uint8_t buf[3] = {0,}; uint32_t temp_data_a; uint32_t temp_data_o; __IO float T; __IO float To; status = HAL_I2C_IsDeviceReady(&hi2c1, I2C_ADDRESS, 3, 1000);while(1){ HAL_I2C_Mem_Read(&hi2c1, 0x00, 0x06, 1, buf, 2, 1000); // Read Ambient temperature from Register 0x06 temp_data_a = buf[1]*256 + buf[0]; HAL_I2C_Mem_Read(&hi2c1, 0x00, 0x07, 1, buf, 2, 1000); // Read Object temperature from Register 0x07 temp_data_o = buf[1]*256 + buf[0]; To = temp_data_o*0.02; if(To >= 273.15) { To = To - 273.15; } else { To = -(273.15 - To); } T = temp_data_a*0.02
