libuarte and sdcard spi ?

RE: libuarte and sdcard spi ?

Hung Bui — Wed, 26 Jan 2022 14:19:31 GMT

Hi ,

How many bytes do you receive when NRF_LIBUARTE_ASYNC_EVT_RX_DATA occurs ? You need to check the p_evt->data.rxtx.length to know the number of byte you received. I assume it's more than 1 byte ?

I can see you still calling nrf_libuarte_async_rx_free(&libuarte1, (uint8_t *)&GPS.rxTmp, 1); with just one byte in length.

Please try to get to know how the libuarte works before using it.

RE: libuarte and sdcard spi ?

RixtronixLAB — Wed, 26 Jan 2022 00:36:31 GMT

Hi Hung Bui,

Thanks for the reply,

I changed these lines

 ret = nrf_libuarte_async_tx(p_libuarte,p_evt->data.rxtx.p_data, p_evt->data.rxtx.length);
            if (ret == NRF_ERROR_BUSY)
            {
                buffer_t buf = {
                    .p_data = p_evt->data.rxtx.p_data,
                    .length = p_evt->data.rxtx.length,
                };

                ret = nrf_queue_push(&m_buf_queue, &buf);
                APP_ERROR_CHECK(ret);
            }
            else
            {
                APP_ERROR_CHECK(ret);
            }

to :

case NRF_LIBUARTE_ASYNC_EVT_RX_DATA:
GPS_CallBack();

void	GPS_CallBack(void)

{
	
	GPS.LastTime=nrf_systick_val_get(); //originally
	 
	
	if(GPS.rxIndex < sizeof(GPS.rxBuffer)-2)
	{
		GPS.rxBuffer[GPS.rxIndex] = GPS.rxTmp; //originally
		 
		GPS.rxIndex++;
		memcpy((void *)line_buffer_GPS, GPS.rxBuffer, GPS.rxIndex); 
			
	}
   nrf_libuarte_async_rx_free(&libuarte1, (uint8_t *)&GPS.rxTmp, 1);
	 
	
}

The callback was working with different MCU,

Any suggestions ?

Thanks

RE: libuarte and sdcard spi ?

Hung Bui — Tue, 25 Jan 2022 13:27:04 GMT

Hi Rixtronix,
I don't see a problem with the NRF_LIBUARTE_ASYNC_DEFINE setup. Do you still have an issue with the freeing length of the buffer ?
I would strongly suggest to try adapting the libuart example to your system for testing before you move to the communication with GPS. (Copy the same loopback code, only modify NRF_LIBUARTE_ASYNC_DEFINE() to match with your setup)

RE: libuarte and sdcard spi ?

RixtronixLAB — Mon, 24 Jan 2022 09:54:24 GMT

Is my libuarte setting correct ?

NRF_LIBUARTE_ASYNC_DEFINE(libuarte1, 1, 3, 2, NRF_LIBUARTE_PERIPHERAL_NOT_USED, 255, 3);

RE: libuarte and sdcard spi ?

Hung Bui — Fri, 21 Jan 2022 10:05:44 GMT

No, you should free the amount of byte equal to the amount of bytes you receive (or you have processed) in this case p_evt->data.rxtx.length

RE: libuarte and sdcard spi ?

RixtronixLAB — Fri, 21 Jan 2022 00:03:57 GMT

so I need to put length = size of buffer, in my case 255 ? thanks

RE: libuarte and sdcard spi ?

Hung Bui — Thu, 20 Jan 2022 15:12:36 GMT

Hi Rixtronik,

Could you explain why you call nrf_libuarte_async_rx_free() with the length = 1 ?
I don't have an overview of how you transmit your data via UART, but basically when you receive data over UART in NRF_LIBUARTE_ASYNC_EVT_RX_DATA event, you will have the length of the number of bytes you receive in p_evt->data.rxtx.length. Then after you have copied the data or have processed the data you can free the same amount of data.

If you receive 10 bytes but only free 1 byte you will receive the error at line 230 of nrf_libuarte_async.c as shown in your log in your first post.

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 20 Jan 2022 04:45:47 GMT

............

Please note that the call nrf_libuarte_async_rx_free() is used after you have done with processing the data. This call is to return the buffer to the library so that it can receive more data.
So it's the best if you can call the function after you process data, not by a periodically timer.

...............

I put it on my callback, and it's crashed, I'm using simple timer state machine now and still crashed,

The sequence :

1 .

case NRF_LIBUARTE_ASYNC_EVT_RX_DATA:

GPS_CallBack(); //originally on 1 Dec 21 Rixtronix LAB

2. in the call back :

if(GPS.rxIndex < sizeof(GPS.rxBuffer)-2)
   {
        GPS.rxBuffer[GPS.rxIndex] = GPS.rxTmp; //originally

       GPS.rxIndex++;
        memcpy((void *)line_buffer_GPS, (void *)GPS.rxBuffer, GPS.rxIndex);

   }

nrf_libuarte_async_rx_free(&libuarte1, (uint8_t *)&GPS.rxTmp, 1); //originally Rixtronix LAB

....

it's the best if you can call the function after you process data, not by a periodically timer.
....

3. GPS process :

in main()

if (GPS_flag_timer ==1)
           {//turn on LED
                   nrf_gpio_pin_set(15);

               GPSNeo_Process();

}

Do you reckon I put

nrf_libuarte_async_rx_free(&libuarte1, (uint8_t *)&GPS.rxTmp, 1); //originally Rixtronix LAB

at the end of GPSNeo_Process(); ?

Thanks

RE: libuarte and sdcard spi ?

Hung Bui — Thu, 13 Jan 2022 13:08:47 GMT

Hi,

I'm sorry for the late response. Jared is on vacation so I will take over the case.

Please let us know if you managed to solve the issue or not ?

Please note that the call nrf_libuarte_async_rx_free() is used after you have done with processing the data. This call is to return the buffer to the library so that it can receive more data.
So it's the best if you can call the function after you process data, not by a periodically timer.

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 23 Dec 2021 21:16:02 GMT

Hi Jared thanks for the info,

How can I relate the timer with :

NRF_SDH_ANT_OBSERVER(m_ant_observer, ANT_HRM_ANT_OBSERVER_PRIO,
ant_hrm_disp_evt_handler, &m_ant_hrm);

I made :

static void create_timers_ANT_HRM()
{
    ret_code_t err_code;

    // Create timers ANT HRM
    err_code = app_timer_create(&m_repeated_timer_id_ANT_HRM,
                                APP_TIMER_MODE_REPEATED,
                                repeated_timer_handler_ANT_HRM);
    APP_ERROR_CHECK(err_code);
}

Thanks

RE: libuarte and sdcard spi ?

Jared — Thu, 23 Dec 2021 09:43:09 GMT

App timer is probably the easiest to use.

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 23 Dec 2021 01:09:08 GMT

HI Jared,

Thanks for the message,

It's still crashed, looks like libuarte crashed with ANT sensors,

I need a timer for each event, any suggestions on using timer ?

Regards,

RE: libuarte and sdcard spi ?

Jared — Wed, 22 Dec 2021 10:13:40 GMT

Hi,

Did you solve this issue?

What IDE are you using?

regards

Jared

RE: libuarte and sdcard spi ?

RixtronixLAB — Fri, 10 Dec 2021 05:37:05 GMT

====

Could you see this post on how to enable the Hardfault library.

======

Hi Jared I have enabled hardfault_handler,

How can I use it ?

I follow :

https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/an-introduction-to-error-handling-in-nrf5-projects

Where can I put this function :

void HardFault_Handler(void)
{
    uint32_t *sp = (uint32_t *) __get_MSP(); // Get stack pointer
    uint32_t ia = sp[12]; // Get instruction address from stack

    printf("Hard Fault at address: 0x%08x\r\n", (unsigned int)ia);
    while(1)
        ;
}

and how can I use it ?

Thanks

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 09 Dec 2021 02:15:15 GMT

Hi Jared, I have installed hardfault_handler in Keil,

How to use it for debugging in Keil ?

Thanks

RE: libuarte and sdcard spi ?

RixtronixLAB — Tue, 07 Dec 2021 06:00:23 GMT

Thanks Jared,

Can it be :

case NRF_LIBUARTE_ASYNC_EVT_RX_DATA:
GPS_CallBack(); //originally on 1 Dec 21 Rixtronix LAB
nrf_libuarte_async_rx_free(p_libuarte, p_evt->data.rxtx.p_data, p_evt->data.rxtx.length);

Where GPS_CallBack :

   GPS.LastTime=nrf_systick_val_get(); //originally


   if(GPS.rxIndex < sizeof(GPS.rxBuffer)-2)
   {
        GPS.rxBuffer[GPS.rxIndex] = GPS.rxTmp; //originally

       GPS.rxIndex++;
       memcpy((void *)line_buffer_GPS, GPS.rxBuffer, GPS.rxIndex);

   }
   nrf_libuarte_async_rx_free(&libuarte1, (uint8_t *)&GPS.rxTmp, 1);

RE: libuarte and sdcard spi ?

Jared — Mon, 06 Dec 2021 12:40:43 GMT

It should be called in the UART event handler. See this case.

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 02 Dec 2021 23:29:59 GMT

I call on call back,

	GPS.LastTime=nrf_systick_val_get(); //originally
	
	if(GPS.rxIndex < sizeof(GPS.rxBuffer)-2)
	{
		GPS.rxBuffer[GPS.rxIndex] = GPS.rxTmp; //originally
		 
		GPS.rxIndex++;
		memcpy((void *)line_buffer_GPS, GPS.rxBuffer, GPS.rxIndex); 
			
	}
   nrf_libuarte_async_rx_free(&libuarte1, (uint8_t *)&GPS.rxTmp, 1);

Do I need to call it again on main after process ?

Thanks

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 02 Dec 2021 20:59:51 GMT

I don't call nrf_libuarte_async_rx_free() , where should I call it ?

main() or callback ?

Thanks

RE: libuarte and sdcard spi ?

Jared — Thu, 02 Dec 2021 09:22:30 GMT

Hi,

Do you call nrf_libuarte_async_rx_free()

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 02 Dec 2021 07:13:12 GMT

When it's not working :

Error at

<error> app: ERROR 0 [NRF_SUCCESS] at ..\..\..\..\..\..\..\..\components\librari

\libuarte\nrf_libuarte_async.c:230

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 02 Dec 2021 06:38:00 GMT

How can I use :

nrf_sdh_soc_evt_handler

with flag and callback ? any examples in sdk ?

Thanks

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 02 Dec 2021 03:33:27 GMT

Is it related with :

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v17.0.2%2Flib_softdevice_handler.html

How can I handle UART interrupt with softdevice ? any examples in SDK ?

Thanks

RE: libuarte and sdcard spi ?

RixtronixLAB — Thu, 02 Dec 2021 02:40:12 GMT

When I used "Hardfault library"

I got :

E:\nRF5_SDK_17.0.2_d674dde\components\libraries\hardfault\nrf52\handler\hardfault_handler_gcc.c

..\..\..\..\..\..\..\..\components\libraries\hardfault\nrf52\handler\hardfault_handler_gcc.c(80): error: #18: expected a ")"

E:\nRF5_SDK_17.0.2_d674dde\components\libraries\hardfault\nrf52\handler\hardfault_handler_gcc.c

Line 80

How to fix it ? thanks

RE: libuarte and sdcard spi ?

RixtronixLAB — Wed, 01 Dec 2021 20:33:02 GMT

So :

case NRF_LIBUARTE_ASYNC_EVT_RX_DATA:
// GPS_CallBack(); //originally on 1 Dec 21 Rixtronix LAB
GPS_UART1_Flag = 1;

in main()

/*************LIBUARTE FLAG =1, callback Rixtronix LAB 2 Dec 21****/
        if (GPS_UART1_Flag ==1)
				{
					GPS_CallBack();
				}	
				/*************LIBUARTE FLAG =1, callback Rixtronix LAB 2 Dec 21****/

I'm thinking it's the cause of system reset, because it crashed on libuarte ?

<error> app: ERROR 0 [NRF_SUCCESS] at ..\..\..\..\..\..\..\..\components\librari

\libuarte\nrf_libuarte_async.c:230

it can be compiled, but I haven't uploaded yet, I'll keep posted...

Thanks