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| nickoe | _florent_: What could the reasons be that LiteDRAMDMAReader() will appear to buffer stuff in the fifo, but it does not seem like the data is anything but zeros? | 10:57 |
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| nickoe | https://i.snipboard.io/2Z0Tdj.jpg | 11:07 |
| nickoe | I was expecting to see the data in the beginning of main_ram, where the demo.bin is dumped, and I also tried the data I put at 0x41000000 via boot.json | 11:11 |
| nickoe | main_ram : Origin: 0x40000000, Size: 0x04000000, Mode: RW, Cached: True Linker: False | 11:11 |
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| thorns514 | hi folks - I'm trying to track down some strange errors in my numato mimas a7 - what does it mean if the post-reset memory test in the LiteX bios console sometimes passes and sometimes fails? | 11:42 |
| thorns514 | (I've had a probably-unrelated problem of being unable to program this board over JTAG with a digilent cable, but only when on USB power) | 11:43 |
| nickoe | maybe the memory is mis configure, maybe your power supply is wonky? | 11:48 |
| thorns514 | it seems to be about 50:50 even with the power supply disconnected and running off of USB power | 11:52 |
| nickoe | does it work stable for other boards/people. I am not really familiar with the board | 11:58 |
| thorns514 | yeah I don't know, the example came from the manufacturer https://numato.com/kb/running-micropython-on-mimas-a7-using-litex-and-migen/ so I presume I wasn't supposed to have to go research sdram timings | 12:01 |
| tpb | Title: Running MicroPython on Mimas A7 using LiteX and Migen | Numato Lab Help Center (at numato.com) | 12:01 |
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