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| Guest3813 | hello, sorry to bother you guys again, is there a good reason why litedram will work in simulation and not on real hardware? | 08:47 |
|---|---|---|
| Guest3813 | I'm using it standalone and i tried both the native and the wishbone interface for data. I can initialise fine and write data but i'm only reading back zeros on hardware | 08:47 |
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| Guest3813 | For anyone in a similar situation looking at the chatlogs, I figured that at least one problem is that i haven't implemented the software read/write leveling ( I use DDR3 ) | 13:31 |
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| ysionneau | hi | 15:36 |
| ysionneau | how are one supposed to use pins like these https://github.com/litex-hub/litex-boards/blob/master/litex_boards/platforms/gsd_orangecrab.py#L195 from LiteX platforms ? | 15:36 |
| ysionneau | if I want for instance to do request the serial pins | 15:37 |
| ysionneau | -do | 15:37 |
| Guest3813 | I don't know much about the project in general but i would assume if you are running linux they should be exposed to the kernel | 15:43 |
| Guest3813 | btw I'm using an orangecrab too :) | 15:44 |
| ysionneau | I mean, I am writing a target file and I want to do something like platform.request("serial") | 15:44 |
| ysionneau | I am writing another SoC to run on OrangeCrab | 15:44 |
| Guest3813 | oh sorry you lost me then, i don't know | 15:45 |
| Hoernchen | well just copy the approach from the orangecrab feather soc? platform.add_extension(orangecrab.feather_serial), self.platform.request("serial") ? | 15:47 |
| ysionneau | oh, I didn't know about the add_extension, thanks! | 15:49 |
| ysionneau | where did you find the feather soc? it's not in my litex_boards | 15:51 |
| Hoernchen | gtihub search | 16:01 |
| Hoernchen | i'm always just using the gh search to figure out how something is being used | 16:02 |
| ysionneau | good idea thanks | 16:06 |
| Guest3813 | I finally got litedram to work! | 16:28 |
| Guest3813 | i think i got away without read leveling by setting cmd_delay to a low value (0) inside the .yml config and also i had forgotten to switch to hardware control with sdram_dfii_control_write | 16:30 |
| Guest3813 | *got away with not read... | 16:30 |
| Guest3813 | haven't slept in two days... | 16:30 |
| ysionneau | ahah | 16:45 |
| ysionneau | congratz! | 16:45 |
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