About bmx160 Read CHIP ID

[zx556605]

Hello everyone!!!

I use Nuvoton M451 MCU with BMX160,
The communication protocol uses SPI,
I will read the BMX160 CHIP ID but cannot succeed
rslt =-3(DEVICE NOT FOUND)

-------------------------------------------------------------------------------

BMX160 ->CHIPDID is 0xD8

But the information I received is 0x80 &0xFF

I would like to ask where is the problem

-------------------------------------------------------------------------------

[my code]

CS_BMX160_SPI = 0;
CS_BMX160_SPI = 1;
///////////////////////////////////////////////////////////////////////////////////////////////////
struct bmi160_dev bmi;
bmi.id = 0;
bmi.interface = BMI160_SPI_INTF;
bmi.read = (bmi160_com_fptr_t)spiRead_BMX160;
bmi.write = (bmi160_com_fptr_t)user_spi_write;
bmi.delay_ms =(bmi160_delay_fptr_t) Delayus;

///////////////////////////////////////////////////////////////////////////////////////////////////
while(1)
{
//CS_BMX160_SPI = 0;
int8_t rslt = BMI160_OK;
rslt = bmi160_init(&bmi);
printf("\n\nCPU @ %dHz\n",SystemCoreClock);
printf("\n+------------------------+\n");
if (rslt == BMI160_OK)
{
printf("BMI160 initialization success !\n");
printf("Chip ID 0x%X\n", bmi.chip_id);
}
else
{
printf("BMI160 initialization failed !\n");
printf("[Error code] %d\n", rslt);
}
printf("\n+------------------------+\n");
Delayms(1000);
}

[BSTRobin · Accepted solution]

Hello,

Please refer the example code in the following topic.

https://community.bosch-sensortec.com/t5/MEMS-sensors-forum/I-can-t-get-BMX160-CHIPID-using-STM32-SP...

If your code also could not work, suggest you contact local Bosch distributor, they will help you check on site.