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Sipeed Tang Nano 9k no Boot Message from SoC-Core #481

Closed maggo1404 closed 1 year ago

maggo1404 commented 1 year ago

Hi,

i Build with the Standard config the bitfile. sipeed_tang_nano_9k.py —build

When finish load to the SRAM or Flash the bitfile.

The LEDs performe a running light Show. Open the serial Port with minicom (115200 8N1) and push the reset Button i hav never sean the boot Message from bios.

When the build with litex_sim —build then see the boot Message.

OS Lububtu 22.04 LTS

Regards maggo1404

trabucayre commented 1 year ago

Not fully sure but rom is in spiflash Could you try with:

./sipeed_tang_nano_9k.py --prog-kit openfpgaloader --flash --build
maggo1404 commented 1 year ago

is not sucessfull :(

i have the small idea the VM is not the perfect Environment for the programming a FPGA-board. 2023-03-12 17_37_21-VirtualBoxVM

have you the settings for the gowin programmer? I can try with the windows-versionen. I have search and havn't found the perfect setting. :(

maggo1404 commented 1 year ago

reboot the FPGA-Board and PC and now running the soft-Core. 2023-03-12 17_54_50-COM54 - PuTTY

The writing for the bitfile is very slow. Thanks for the support.

trabucayre commented 1 year ago

JTAG interface is quite unstable in some case :-( Never tested with a VM nor with windows. For time to write: SPI flash is accessed with a bitbanging mode and can't be really fast.

Great to see everything is now working!