About bmx160 struct SPI READ and WRITE FUNCTION

[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)
Re-read CODE several times
It is found that the Read and write functions in the struct may not be well written
CHIPID cannot be read normally

-----------------------------------------------------------------------------------
struct bmi160_dev bmi;
bmi.id = 0;
bmi.interface = BMI160_SPI_INTF;
bmi.read = (bmi160_com_fptr_t)user_spi_read;
bmi.write = (bmi160_com_fptr_t)user_spi_write;
bmi.delay_ms = (bmi160_delay_fptr_t) Delayus;
-----------------------------------------------------------------------------------
I would like to ask!!!
bmi.read = (bmi160_com_fptr_t)user_spi_read;
bmi.write = (bmi160_com_fptr_t)user_spi_write;
The workflow of these two functions and how to write

[Vincent]

You need to link / map the SPI read / write function in your MCU complier to those funciton.

In the API,  they are just dumy function which need to be map by user.

[zx556605]

HI Vincent
Understand~~
So we also need to write the function of MCU by ourselves to use for FUNCTION
So how do I give these functions to FUNCTION?
Is there any reference to this FUNCTION design flow and examples!!

Thank you

[Vincent]

You can just rewrite / replace your SPI read and write function in the API. 

It is the generic SPI function on your MCU platform.