After programming the board (15cb30), it is no longer responsive, not answering to NBoot s-press.
It is possible that during programming the nboot has been overwritten.
Is it possible to reload a new nboot with a JTag programmer?
After programming the board (15cb30), it is no longer responsive, not answering to NBoot s-press.
It is possible that during programming the nboot has been overwritten.
Is it possible to reload a new nboot with a JTag programmer?
What exactly did you do? Which update tools were used?
Which files did you program?
I now see this is the windows forum, using a Linux board, could this question be moved to Linux PicoCom?
I was updating the nboot from the screen application, and probably I didn';t send it as binairy (need to check the method, if it uses binairy or not..). Just to make sure if we update it, what would happen. I know, I shouldn't have, but it happened. Bummer.
I used the nboot v50 binairy file from the download section of the site.
If I now connect the board to our custom carrier, it doesn't react to anything: USB, serial, display etc.
We did get a development kit from our customer, but he probably broke that (mounted PicoCom defect.. when used on our own board it get increadibly hot very quick, don;t know what happened there, and because of that the picocom broke the devkit supply I think), so I could potentially test the PicoCom on the devkit if I fix it first.
So I used:
* Linux PC with 'screen' to connect to terminal with nboot (v36 I think)
* nboot v50 bin taken from last buildroot env
* probably non-binairy transfer of file (need to verify). Planned to do full update including U-Boot, and custom image
have you tried holding 's' during power-up?
If the board does not respond to the key then the nboot is not working.
For the PicoCOM series you need a special adapter to set it to recovery mode.
Please send the board back with RMA.
Can't I do it myself with a JLink, and a 10 pin 1.27mm pitch header on the PicoCom? Much faster that sending it around.
Sorry, but we can't help with JTAG.