enable twim0

[asmita_patil]

can somebody help me on how to enable twim0..

it was no problem in twi_sensor example...now i am integrating twi_sensor in ble_eddystone...and on built it give an error of "'NRF_DRV_TWI_INSTANCE_0' undeclared here (not in a function); did you mean 'NRF_DRV_TWI_INSTANCE_'?" i changed sdk
_config of eddystone too... am i doing right..???

below is nrf_drv_twi.h file ...which shows that twim0 is not enabled..can you solve yhis problem..it would be great help..thank you.

[Amanda Hsieh]

Hi, 

Could you try to enable TWI_ENABLED in the sdk_config.h?

// <e> TWI_ENABLED - nrf_drv_twi - TWI/TWIM peripheral driver - legacy layer
//==========================================================
#ifndef TWI_ENABLED
#define TWI_ENABLED 1
#endif

When you are integrating twi_sensor into ble_eddystone, you could refer to the sdk_config.h of twi_sensor.

-Amanda H.

[asmita_patil]

yes..i did all changes. ..now it is working...but the problem is that it reads the registers but all the valuse are getting in m_sample variable....i am returning *p_data from read function and have assigned a variable to catch values in..but they are not displaying in those variables....it is only remaining in m_sample..

what could be the reason.??

this is what i am doing 

rslt_MSB = nrf_drv_vcnl4020_read_registers(0x87,&m_sample,1); // command to read result register 0x87 (MSB bits) of vcnl4020

rslt_MSB = m_sample; //m_sample holds the values of result register..copy it to rslt_MSB variable.

rslt_LSB = nrf_drv_vcnl4020_read_registers(0x88,&m_sample,1); //command to read result register 0x88 (LSB bits) of vcnl4020

rslt_LSB = m_sample;

am i doing it right ??

and i have integrated twi_sensor into eddystone...can you halp..??

Thank you.

[asmita_patil]

my code is getting stuck at nrf_breakpoint_cond...

i changed sdk_config.h as suggested 

#ifndef NRF_LOG_ENABLED
#define NRF_LOG_ENABLED 1

#ifndef NRF_LOG_BACKEND_RTT_ENABLED
#define NRF_LOG_BACKEND_RTT_ENABLED 1

somebody can help???

this is where code is stuck

 

and it is the definition

any help would be appriciated...thank you

[Amanda Hsieh]

Hi, 

asmita_patil said:

yes..i did all changes. ..now it is working...

Good to hear it works. 

nrf_drv_vcnl4020_read_registers() is not developed by us and out of our support.

If you have further questions, please create new cases for them. They are already faraway to the title.   

 

-Amanda H.

[asmita_patil]

yes,,but inside nrf_drv_vcnl4020_read_registers() function i have used 

err_code = nrf_drv_twi_tx(&m_twi_instance, vcnl4020_ADDRESS, &reg, 1, false);   and 

err_code = nrf_drv_twi_rx(&m_twi_instance, vcnl4020_ADDRESS, p_data, length);  functions only..it is nothing different...

which are originally 

err_code = nrf_drv_twi_tx(&m_twi, LM75B_ADDR, reg, sizeof(reg), false); 

and 

ret_code_t err_code = nrf_drv_twi_rx(&m_twi, LM75B_ADDR, &m_sample, sizeof(m_sample));  functions used in sdk(LM75B example twi_sensor)

i just created new function for my convenience..thats it..