Communicating with the ML605 Board (v8.0)

sergeykhbr / riscv_vhdl

Portable RISC-V System-on-Chip implementation: RTL, debugger and simulators

http://sergeykhbr.github.io/riscv_vhdl/

Apache License 2.0

626 stars 104 forks source link

Communicating with the ML605 Board (v8.0) #35

Closed gutkedu closed 2 years ago

gutkedu commented 4 years ago

Hello,

I'm having an issue or misunderstanding for communicating with the processor via UART. I downloaded the bitstream v8.0 into the ML605 board using iSE Impact, opened the UART channel on my computer and when I press RESET, I receive only a byte 00 on UART.

Also, it is possible to generate the bitstream for the ml605 board in the v11?

Thanks

sergeykhbr commented 4 years ago

Hello,

Check that you setup 115200 baud rate.
ML605 is a quite obsolete board which is not supported in Vivado (I entirely switched into kc705). But you can build bit-file in ISE Studio from the latest 'master' (I've just checked it) and try to run it on your board.

gutkedu commented 4 years ago

I checked and it is on 115200 baud rate, I tried multiple versions of the bitstream already, version 7.0, 8.0 and 11.0 (generated the bitstream with Xilinx ISE myself) but no success, I`m still receiving 0x00 on uart input. Maybe my board has a problem...

sergeykhbr commented 4 years ago

Did you try to connect to board via Ethernet? Could you try the following file? r5_soc.zip

gutkedu commented 4 years ago

I didn't try connecting with the ethernet and downloading the debugger. I tried this r5_soc bit file and still the same issue, next week I'm going to try to find the problem again, could be a problem with the board or with the software, I'm not sure