| --- Log opened Wed Sep 16 00:00:46 2015 | ||
| -!- Netsplit *.net <-> *.split quits: arand | 00:36 | |
| -!- Netsplit over, joins: arand | 00:37 | |
| andrzejr | mithro, very nice board indeed. I like the high-speed/TOFE connector. | 00:46 |
|---|---|---|
| mithro | andrzejr: now to make some really cool TOFE boards | 00:46 |
| mithro | andrzejr: turns out the apertus guys had the same idea but sadly chose incompatible pin outs | 00:47 |
| andrzejr | Would be nice to have ADC/DAC boards connected via JESD204B. I've been looking for something like this. | 00:48 |
| mithro | Looking at JESD204B it seems to not be open and have expensive connectors like FMC | 00:52 |
| mithro | Or did I miss something? | 00:54 |
| andrzejr | olofk, pushed some endianness and alignment fixes to the DDR2 interface. When I started looking into byte and half-word access everything turned out to be flipped (UI bus is little-endian). Sadly, this hasn't fixed my booting problems. | 00:55 |
| andrzejr | Well, I don't care about connector, as long as I can talk to some chips. As for openness - I haven't check that. The standard should be free to download but I don't know if it comes with any strings attached. | 00:58 |
| mithro | andrzejr: FMC isn't a free download | 01:02 |
| andrzejr | mithro, I've just downloaded http://www.jedec.org/standards-documents/docs/jesd-204a | 01:10 |
| andrzejr | it doesn't require an FMC connector, or any connector at all (on-board chip-chip connection is one of the supported configurations) | 01:11 |
| andrzejr | but it is serdes based so it needs impedance matching up to 3.125, 6.375 or 12.5Gbps. | 01:12 |
| andrzejr | will you be able to ship this board in December? | 01:17 |
| andrzejr | hello.c (newlib) crashes because of instruction "l.lwz r3,0x000(r28)" at PC=0x3198 (in _or1k_libc_impure_init) reading from an unitialized location 0x447c. Does anyone have any clues on what could be going wrong? | 01:49 |
| andrzejr | found it, my hex file converter doesn't handle holes in the address space correctly. | 02:42 |
| olofk | andrzejr: What's the status of your SoC now? Have you been able to boot anything on hw or in simulation? | 09:13 |
| --- Log closed Thu Sep 17 00:00:47 2015 | ||
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