08:13 <jeandet_> Hello, I can't get the SD card working on the ULX3S, I tried several thing, I even desoldered the ESP32, tried on others IOs with another connector. I'm using LiteX and build with Yosys/Trellis provided in OSS-CAD-Suite. It always fails with init.

08:35 <Flea86> jeandet_: Were you trying using spi or full sd mode?

08:36 <jeandet_> Mostly SD mode

08:37 <Flea86> I see. I have full sd mode working successfully with ECP5 here, though I do not use ulx3s platform

08:37 <Flea86> Does spi mode work?

08:37 <Flea86> I started off with spi mode initially myself

08:39 <Flea86> @jeandet_

08:39 <jeandet_> You can init the SDCard with bare metal code/driver?

08:41 <Flea86> I think I used linux-on-litex framework to get up and running

08:42 <Flea86> wait no, I did also try compiling a baremetal example that loaded from sd

08:42 <Flea86> I cannot recall what mode that used however

08:43 <Flea86> some spinning torus example or something :)

08:43 <jeandet_> Which also means, you could get the BIOS to init the SD card

08:43 <Flea86> Correct

08:43 <Flea86> Let me check something

08:45 <Flea86> jeandet_: When you compile your SoC core, are you using --with-spi-sdcard option?

08:46 <Flea86> I would first try compiling your SoC using spi mode first

08:46 <Flea86> -first :)

08:47 <jeandet_> I did something similar, I have a wrapper around ulx3s target and manually call `self.add_spi_sdcard(software_debug=True)`

08:47 <jeandet_> But I only tested SPI mode with default BIOS

08:48 <Flea86> Right OK. Just so you know, I used vexriscv core for my evaluation

08:48 <Flea86> jeandet_ "But I only tested SPI mode with default BIOS" and does that work?

08:49 <jeandet_> In fact with a custom code and calling `spisdcard_init` seems to work

08:49 <jeandet_> With the BIOS it always failed to call the sdcard init CMD

08:50 <jeandet_> Note that I did those tests before removing the ESP32 which might have been the culprit then

08:50 <Flea86> I do not recall needing to manually call self.add_spi_sdcard() and just used the option switch

08:50 <Flea86> Ah okay

08:50 <Flea86> Perhaps that was the issue

08:51 <jeandet_> https://github.com/enjoy-digital/litex/issues/1712

08:51 <Flea86> I am not familiar with ulx3s myself

08:51 <jeandet_> yeah, so at least SPI mode works now \o/

08:51 <Flea86> but I recall the sdcard i/o is shared with esp32 pins

08:51 <Flea86> or something

08:53 <jeandet_> Yes exactly

08:54 <jeandet_> With SPI mode I don't see any function to write a block is this intended only for reading SD cards?

08:55 <Flea86> jeandet_: This is where I am currently https://dillo-browser.github.io/gallery/img/fpga-rv32.jpg :D

08:58 <Flea86> My biggest problem however, is getting buildroot to produce what I want/need (still learning..)