7 years, 4 months ago.  This question has been closed. Reason: Off Topic

Using tag-connect / ulink2 with C027

As I've been having issues * getting blinky to run on my C027, I thought I'd try using a tag-connect connector and ulink2 SWD. So far, SWD communications have always failed. Has anyone successfully used tag-connect and ulink2 to develop with C027 ?

My hardware setup is the SARA-G350 on PCB 26_MBD_CS_189F00 v1.5 The board is powered by USB to PC.

USB connection to a ulink2 with PCB "Ver s.2" (sic). The jumper is set to ARM. The tag-connect is TC2030-CTX-NL which plugs directly in to the ulink2 and push fits to the C027

I've exported the blinky program from mbed to a Keil project running on a licenced version of Keil uVision 5.16a uVision can see the ulink2 but SWD communications do not work (while I hold the connector on to the board) Keil reports ulink2 firmware v2.03

• The issues I experienced are the repeated loading of the C027 as a network drive - reported in other forum posts. This issue happens on two computers.

Once in a while, I got lucky and managed to program the C027 with the blinky binary, but the user LED did not blink. Finally I got lucky and successfully programmed the C027 so that the user LED blinks.

The blinky code is simple:

#include "mbed.h"
#ifdef TARGET_UBLOX_C027
 #include "C027_api.h"
#else
 #error "This example is targeted for the C027 platform"
#endif

DigitalOut myled(LED1); 

int main() {
    while(1) {
        myled = !myled;
        wait(1.0);
    }    
}

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Last updated: 27 Aug 2020

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