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grinux / sunxi-jtag

JTAG debugging support for Allwinner SoCs
GNU General Public License v2.0
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T113-S3 JTAG #1

Open kimyj1503 opened 7 months ago

kimyj1503 commented 7 months ago

Hello. Thank you for sharing this great project and I have a question for connecting T113-S3 with JTAG. I used a uSD to JTAG converter board on MangoPi T113-S3 board (MPi-MQ1DW) with a 16MB SPINOR flash. Between Jlink and Mango Pi, 4 pins are connected (TDI, TMS, TCK, TDO). However whenever I try to initiate the GDB server or the debug session on the IAR workbench, it says 'TDO is constant high' and failed to connect to the board. Could you please share how you managed to run this project on the Mango Pi board with JTAG? Thank you in advance.

grinux commented 4 months ago

Hi. Sorry for late reply. Regarding your issue, i think the reason is that your SPINOR have valid binary. Bootrom enables JTAG functions for SDIO pins only if loadable image was not found. My MangoPi board does not have any SPINOR soldered. So try to wipe or invalidate magic number in SPINOR or desolder it.

musich1980 commented 4 months ago

Excuse me, using IAR, Encode and decode JPEG images using V3S/T113-S3 hardware, And not using OS; Can it be achieved?

grinux commented 4 months ago

Excuse me, using IAR, Encode and decode JPEG images using V3S/T113-S3 hardware, And not using OS; Can it be achieved?

Yes

musich1980 commented 4 months ago

Excuse me, using IAR, Encode and decode JPEG images using V3S/T113-S3 hardware, And not using OS; Can it be achieved?

Yes

Amazing, How to achieve it? How can I get it?

grinux commented 4 months ago

This is general question and not IAR or Jtag related. Just clone this project and write your own (de)coder or take a look around and reuse something open source. Or if you're on commercial project and have TT and budget, email me to gmail g.korotov.

musich1980 commented 4 months ago

Okay, thank you At present, I am still playing in my spare time,