Is any example for access ST LIS3DH in NRF52

[Jorgewu]

Hi all: I am developing the driver of ST LIS3DH and its mcu is NRF52. If I want to read the value of whoami. I am not sure if I need call the function of

nrf_drv_twi_tx	(
	nrf_drv_twi_t const *	p_instance,
	uint8_t 				address,
	uint8_t const *			p_data,
	uint8_t 				length,
	bool 					no_stop 
)

where address is the I2C Address of LIS3DH, p_data is the adree of the register of whoami, length = 1, and no_stop is true.

And then call the function function of

nrf_drv_twi_rx	(
	nrf_drv_twi_t const *	p_instance,
	uint8_t 				address,
	uint8_t * 				p_data,
	uint8_t 				length 
)

where address is the I2C Address of LIS3DH, p_data is the buffer for receive data, and length = 1.

Because my program is always not return from the function of nrf_drv_twi_rx. Is any mistake I made.

BTW, I am using the example code of "app_twi" and just change the configure of SDA/SDA pins and I2C Address..

Thanks...

[tesc]

As long as the data you send is correct for getting a response, and the lengths are set correctly, I think you should be on the right track. Do you still have problems making this work?

[Jorgewu]

Yes. It's working correctly now. Thanks

[ag]

What did you do to make this work? I'm encountering a similar issue right now with the NRF52/LIS3DH. When I read the value of WHOAMI at 0X0F, the expected value should be 33, but I'm just getting 0.

[gauthamranganathan]

I am trying to read X,Y and Z values using i2c, can you please explain what you did to resolve this.