PSoC™ 4 Forum Discussions

Hello,

I'm looking for a PSoC 4 bootloader that loads an image from an external buffer (ext. flash in this case, which has the cyacd file in it).

I'll make sure the image gets inside the flash from my end, I can provide the bootloader with the char array of the cyacd file, or line by line, whatever works. What I am looking for is the code that loads that cyacd file to the flash.

All bootloaders seem to be made to run from a communication protocol rather than from an external buffer.

Now the BLE examples have an external flash bootloader demo, but I dont really see the separation between bluetooth and the bootloading.

I guess a good start would be to have a bootloader that starts with a (hardcoded) images string (cyacd file contents) as an input. Does anyone have such a thing? The rest I can do myself

If I am approaching things the wrong way, or if I am not clear what I need, let me know

Regards,

Robert

Hello all,

I have my BLE configured as follows:

My code is as follows

/******************************S T A R T ********* M A I N . C ******************************/

void monitorCybleState();

int main(){

   CyBle_Start(StackEventHandler);

   for(;;){

       monitorCybleState();

   }

   return 0;

}

void monitorCybleState()

{

    switch(CyBle_GetState()){

        case CYBLE_STATE_STOPPED:

            break;

        case CYBLE_STATE_INITIALIZING:

            break;

        case CYBLE_STATE_CONNECTED:

            break;

        case CYBLE_STATE_ADVERTISING:

            break;

        case CYBLE_STATE_SCANNING:

            break;

        case CYBLE_STATE_CONNECTING:

            break;

        case CYBLE_STATE_DISCONNECTED:

            CyBle_GappStartAdvertisement(CYBLE_ADVERTISING_FAST);

            CyBle_GapcStartScan(CYBLE_SCANNING_FAST);

            break;

        default:

            break;

    }

}

/******************************E N D ********* M A I N . C ******************************/

/**********************S T A R T *********** E V E N T . C **********************/

void StackEventHandler(uint32 event, void* eventParam){

    switch(event){

           case CYBLE_EVT_STACK_ON:

                  break;

          case CYBLE_EVT_GAPC_SCAN_PROGRESS_RESULT:

                 printf(".");

                 break;

          case  CYBLE_EVT_GAPC_SCAN_START_STOP:

                  printf("CYBLE_EVT_GAPC_SCAN_START_STOP\r\n");

                  break;

           default:

                 break;

   }

}

/**********************E N D **************** E V E N T . C ***********************/

/**********************OBSERVATIONS******************/

I see that advertisement and scanning are started. I can see my BLE advertising with the payload I configured. Also,the scanning is active as I can see the dots on my console. After a while I don't see any dots which means there are no scan events. This implies that scanning has stopped because there are active BLE devices emitting beacons all the time. I printed the value of CyBle_GetState() and it shows 4.

4 corresponds to CYBLE_STATE_SCANNING.

This implies that Cyble is still in scanning state but it is not scanning anymore. I am not sure why. I added debug messages to see if somehow CyBle_GapcStopScan() is being called. I didn't see my debug messages on console. So no. I am not sure why scan is stopping after a while. It stops at random times. However, advertisement is functioning well.

As of now the only way to fix this is using stack restart which is CyBle_Stop() and Cyble_Start() which starts the advertisement and scan again. Any suggestions on how to fix this without stack restart?

Thanks

Dheeraj