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| mithro | sajattack: Yes - but it gives an example of how to map an AXI into the memory bus instead of using LiteDRAM | 00:46 |
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| sajattack | ok | 01:01 |
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| atommann | Hi, I am trying the linux-on-litex-vexriscv project with a Xilinx KC705 evaluation board. | 07:50 |
| atommann | At the beginning it always prints some corrupted data in the terminal. | 07:50 |
| atommann | I changed the baudrate, from uart_baudrate = 1e6 to baudrate = 921600, it now prints the correct message. | 07:51 |
| atommann | The datasheet of CP2103 shows the maximum baudrate it supports is 921600. | 07:52 |
| atommann | now I face a new issue: memtest fails every time. | 07:53 |
| atommann | This is the BIOS message: https://gist.github.com/atommann/63cf6a3d5fb537589ed1a9d8474dd53f | 07:55 |
| tpb | Title: gist:63cf6a3d5fb537589ed1a9d8474dd53f · GitHub (at gist.github.com) | 07:55 |
| atommann | I searched in github and google, there was a pull request with similar issue, but it is related with ECP5. | 07:56 |
| atommann | any clue or hint I can get rid of this? | 07:57 |
| atommann | Thank you. | 07:57 |
| _florent_ | atommann: thanks for reporting, there is indeed a regression on the KC705 calibration i also encoutered a few days ago | 08:09 |
| _florent_ | atommann: i created an issue with a workaround you can use for now https://github.com/enjoy-digital/litex/issues/361 | 08:10 |
| tpb | Title: KC705 DDR3 calibration regression · Issue #361 · enjoy-digital/litex · GitHub (at github.com) | 08:10 |
| atommann | Hi _florent, thanks a lot! | 08:13 |
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| atommann | now memtest works fine. | 08:59 |
| _florent_ | atommann: great, i'll try to fix the calibration with all the modules soon. You should be able to run linux-on-litex-vexriscv now | 09:15 |
| atommann | lxterm --images=images.json /dev/ttyUSB0 --speed=921600 --no-crc | 09:28 |
| atommann | I typed this command. it stopped at [LXTERM] Booting the device. | 09:29 |
| atommann | [LXTERM] Done. | 09:29 |
| atommann | then nothing happens. | 09:29 |
| atommann | this time, the serial port is printing some characters computer can not recognize. I'm waiting to see what will happen. | 09:31 |
| _florent_ | atommann: can you share your bitstream? I have a KC705 just near me and could test | 09:38 |
| atommann | at "Boot" state, it says: CCCCToo many consecutive errors, abortingNo boot medium found | 09:38 |
| _florent_ | ah ok | 09:38 |
| _florent_ | can you try lowering the baudrate? | 09:38 |
| _florent_ | to 500000 for example | 09:38 |
| atommann | OK | 09:39 |
| atommann | Sent an email to [email protected] | 09:44 |
| _florent_ | ok thanks | 09:49 |
| _florent_ | atommann: i'll do the test if you still have the issue with a lower baudrate | 09:53 |
| atommann | OK. I'm trying 115200 | 09:58 |
| atommann | _florent_, it work! Now I feel so exciting! | 10:42 |
| _florent_ | atommann: great! | 10:43 |
| atommann | Before MAIN-RAM: 16384KB, so it's 16MB, now MAIN-RAM: 262144KB | 10:43 |
| _florent_ | sorry, before what? | 10:43 |
| atommann | I deleted the local repo of linux-on-litex-vexriscv and do a brand new cloning of the repo. | 10:43 |
| _florent_ | ah ok | 10:44 |
| atommann | changed the baudrate to 500000 then build the bitstream, it just work. | 10:44 |
| atommann | It is so cool. | 10:45 |
| atommann | Thank you for the help. | 10:46 |
| _florent_ | Happy you got it working :) | 10:46 |
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| atommann | Just submitted an issue. | 17:34 |
| atommann | https://github.com/litex-hub/linux-on-litex-vexriscv/issues/88 | 17:34 |
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