topic Re: FRWY-LS1012A-PB PORST Led stays on after QSPI Flash in Layerscape

FRWY-LS1012A-PB PORST Led stays on after QSPI Flash

keomell — Mon, 22 Nov 2021 05:07:42 GMT

Hello I followed the instructions on the Layerscape user guide on flashing the QSPI and after reboot my device has stopped responding to serial and the PORST led stays on. I have attached the instructions that I followed. I have no idea what could have when wrong. I have three of them and I was able to flash the QSPI the same way with the other two.

Thanks in advance.

Re: FRWY-LS1012A-PB PORST Led stays on after QSPI Flash

ufedor — Mon, 22 Nov 2021 06:32:00 GMT

For the problem board please provide a textual log of the QSPI flashing captured from the console.

Use a digital scope and refer to the board schematics to determine which signal causes DUT_PORST_B assertion.

Re: FRWY-LS1012A-PB PORST Led stays on after QSPI Flash

keomell — Mon, 22 Nov 2021 20:17:05 GMT

I do not have the thermal output but I can tell you everything went according to the layerscape SDK, just when I entered the command "reset" and the board reset with the red led (D3) on. When I clicked the restart switch the green (D1) led is blinking slowly. Will do some debugging with a scope, but the voltage meter does confirm there is a voltage coming out of 1Y of U19.

Re: FRWY-LS1012A-PB PORST Led stays on after QSPI Flash

keomell — Mon, 22 Nov 2021 22:28:02 GMT

Update, I have been trying to determine which signal is producing and I still can't determine the cause. Has anyone come across this before?

Re: FRWY-LS1012A-PB PORST Led stays on after QSPI Flash

ufedor — Tue, 23 Nov 2021 02:15:42 GMT

Have you stopped the Storage Service as described in the Layerscape LS1012A Freeway (FRWY-LS1012A) Board Getting Started Guide, 3.2 Booting FRWY-LS1012A?

Re: FRWY-LS1012A-PB PORST Led stays on after QSPI Flash

keomell — Tue, 23 Nov 2021 02:27:04 GMT

I had no need to. I am using Ubuntu 20.04.2. The device comes up as a bootloader device now and the red led stays on.

Re: FRWY-LS1012A-PB PORST Led stays on after QSPI Flash

ufedor — Tue, 23 Nov 2021 06:34:43 GMT

Please try to update the CMSIS-DAP firmware referring the application note and using binary image from attachment.

Re: FRWY-LS1012A-PB PORST Led stays on after QSPI Flash

keomell — Tue, 23 Nov 2021 17:43:24 GMT

Updating the CMSIS-DAP firmware fixed the blinking green LED, but the red LED is still solid. It seems to be weak when there is just power and when I press the reset switch, it brightens up. I have attached images.