[J-core] Weird console output

Daniel Lezcano daniel.lezcano at free.fr
Sun May 15 13:57:40 EDT 2016


Hi all,

I am very new to this project and almost everything related to CPU 
design. I am just a kernel developer.

I followed step by step the tutorial.

  - using ttp://j-core.org/downloads/binaries/mimas_v2.bin
  - checked sha1sum dcc14d4c7ed1fd36618b2704a6b73d43d82bd18b
  - not sdcard + vmlinux yet just waiting for "CPU tests passed"

Unfortunately the console output is showing:

CUtt psdGBtb oH20H RMrviio:0262c2f358
                                      i:M ug105: DT25Bon
Dtrt
PrbsrgdviealeF

T50:0001abd00:00013004;:000050000;0:0007000a0:00089000000:0000;b:00b00000;:000d0000;f:07fc1002;1:00010000;:00001ff0;500010001f


Or

SD idC0ru F23C 1
            roetaeeic id
                        Rn lFILD.
 
000000;:c00020000;:00604000;:000a61000;:07c080000;:0090a000;:000b0c00000:00de0000;0:07fc0008;1:0020;20001:0000;4:f8001000;6:001#

Or

CPtst psd 
000000;:c00020000;:00604000;:000a61000;:07c080000;:0090a000;:000b0c00000:00de0000;0:07fc0008;1:0020;20001:0000;4:f8001000;6:001#
          GBt oH-20HRMrvii:022-c9fb35
                                     idMn u10::3 D25
Dtr                                                oin
Pbsog dvefaleFn
unel IED
T0:000;1bd0000001;30040:0000;5:000a0100;7:07c00000;:0000000;b0000:000c;d000000000;f007fc1002;1:0080120000;:00014ff0;:000060000;9

etc ...

Different operations:
- console 115200 8N1 (flow control off sw/hw)
- tried different console speed rate in case but without success
- tried minicom, stty, screen with the same result

It looks like the console is missing some characters or something like that.

I tried an uart_output test found on the numato web site [1] and it 
seems the uart is correctly working.

Any ideas how to fix this ?

Thanks in advance.

   -- Daniel

[1] 
https://community.numato.com/threads/mimas-v2-uart-doesnt-work-under-certain-circumstances.71/


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