SPI Prbolem , Clock dosen't work

RE: SPI Prbolem , Clock dosen't work

ToTo — Tue, 21 Feb 2017 14:30:14 GMT

Ok thanks for your help. I didn't succeed to use my function and my own driver. So I will , as I have to finish this project, to use Nordic driver . Thanks for your help again although i didn't exactly why my driver didn't run.

RE: SPI Prbolem , Clock dosen't work

Ole Bauck — Tue, 21 Feb 2017 12:02:58 GMT

The interrupt handler from the SPI driver: I did not define my own interrupt handler (this would also crete multiple definitions unless I removed the the SPI driver files (nrf_drv_spi.c) or removed the interrupt handler in the spi driver).

You don't have to use the SPIM structure. You can choose between the SPIM and SPI peripheral on nRF52.

Why do you not want to use the nordic driver? The error with bsp_btn_ble_on_ble_evt(..) was probably just pin conflicts between the SPI you set up and the buttons or LEDs the BSP module uses.

Also: When I tested I ran these to lines in the while loop in main with some delay after (e.g. nrf_delay_ms(1000)):

nrf_spim_event_clear(&stSPI_iNRF_SPI_Type,NRF_SPIM_EVENT_ENDRX);
nrf_spim_task_trigger(&stSPI_iNRF_SPI_Type,NRF_SPIM_TASK_START);

RE: SPI Prbolem , Clock dosen't work

ToTo — Mon, 20 Feb 2017 16:39:28 GMT

What do you mean by : with the interrupt handler from SPI driver?

RE: SPI Prbolem , Clock dosen't work

ToTo — Mon, 20 Feb 2017 16:18:04 GMT

Do I have to use SPIM structure? I think I need only SPI , because SPIM uses DMA. Can that be a rpoblem ? Hey I told you in the last comments that it works with the driver layer implemented by NORDIC but not mine. I copied all same way..initialization ..I am really confused.

I used also SPI structure,,,not SPIM but nothing new!!

RE: SPI Prbolem , Clock dosen't work

Ole Bauck — Mon, 20 Feb 2017 12:48:58 GMT

I tested your code and got it to work when I commented out //nrf_spim_int_enable(&stSPI_iNRF_SPI_Type, ...);. I used the SPI example in the SDK as a base (with the interrupt handler from the SPI driver). You should try to only run the SPI code to see if it works without the BLE stuff.

Also, in the interrupt handler you have to clear the event that triggered the interrupt:

if (nrf_spim_event_check(p_spim, NRF_SPIM_EVENT_END))
{
    nrf_spim_event_clear(p_spim, NRF_SPIM_EVENT_END);
}

Or else you will not get any more interrupts.

RE: SPI Prbolem , Clock dosen't work

ToTo — Fri, 17 Feb 2017 16:28:56 GMT

I commented the line : //nrf_spim_int_enable(&stSPI_iNRF_SPI_Type, ...); it dosen't work :/

RE: SPI Prbolem , Clock dosen't work

ToTo — Fri, 17 Feb 2017 16:16:40 GMT

yeah I defined my intrrupt handler, and it dosen(t work, as there is no CLK working already, so no interrupt.

#define SPIM_IRQ                    SPI0_TWI0_IRQn
#define SPI0_TWI0_IRQHandler        vSensor_iSPI0_TWI0_IRQHandler_Exe
#define SPIM_CONFIG_IRQ_PRIORITY    APP_IRQ_PRIORITY_LOW

    void vSensor_iSPI0_TWI0_IRQHandler_Exe(void) 
{
	 ui8RXCounter++;
	 /*Cehck End sending Flag*/
	 if(true==nrf_spim_event_check(&stSPI_iNRF_SPI_Type,NRF_SPIM_EVENT_ENDRX))
	 {
		 ui8RXCounter++;
	 }
	 
	 else
	 {
		 /*empty else*/
	 }
	 
	 if(3==ui8RXCounter)
	 {
		 /*3 bytes are read*/
		 //ui8RXCounter=0;
		 /*Extarct data & check status bytes*/
		 if(0x01==((ui8RxBuffer[SPI_RX_BYTES_NB-1]&AD7780_STAT_PAT0)|(ui8RxBuffer[SPI_RX_BYTES_NB-1]&AD7780_STAT_PAT1)))
		 {
			  /*Serial transfer was correctly performed ==> push in the FIFO*/
		 
					uint8_t tmpPtr = 0;
				  tmpPtr = ucPushPtr + 1;
					if(tmpPtr >= DfMaxBufferSize) tmpPtr = 0;
					if(tmpPtr != ucPopPtr)
						{
							fMeasureVlaues[ucPushPtr] = (uint32_t )(fSensor_iConvertToVolatage_Exe(ulSensor_iAdcMeasure_Get(ui8RxBuffer))) ;
							ucPushPtr = tmpPtr;
						}
		 }
		 else
		 {
			 /*empty else*/
		 }
	 }
	 else
	 {
		  /*empty else*/
	 }
}

the content of the handler not really done well,, i am still fixing it, but it never enter to it already,,i am doing that counter ui8RXCounter and it is also 0

RE: SPI Prbolem , Clock dosen't work

ToTo — Fri, 17 Feb 2017 16:12:25 GMT

Look waht I did : I am using the ble_app_hrs and I want to integrate SPI part. I took it from the project SPI in the examples. I just did my driver layer,, what I attached in the question it dosen't work. Now I used the driver elaborated by Nordic but dosen't work and I discovered that is related to bsp_btn config. I deleted this function and it works :

//    bsp_btn_ble_on_ble_evt(p_ble_evt);

Now after i discovered the source of the problem , I take back my driver layer,, which is the code i attached in the question and it dosen't work :/

RE: SPI Prbolem , Clock dosen't work

Ole Bauck — Fri, 17 Feb 2017 14:27:37 GMT

Does it work if you comment out the int enable line?:

//nrf_spim_int_enable(&stSPI_iNRF_SPI_Type, ...);

In that case have you written the SPIM irq handler or do you use the one in the SDK? Using the one in the SDK will probably cause troubles.