| --- Log opened Thu Jul 21 00:00:48 2016 | ||
| _franck_ | ZipCPU, olofk : andrzejr used the Digilent embedded JTAG adapter on a Nexys4 board -> http://www.juliusbaxter.net/openrisc-irc/%23openrisc.2016-04-17.log.html | 01:56 |
|---|---|---|
| _franck_ | seems like it may work on Atlys. | 01:56 |
| olofk | _franck__: I think there is a difference since Nexys seems to use a FTDI chip while Atlys uses a Cypress FX2 | 03:54 |
| olofk | But mithro is the one who demoed using an alternative fx2 firmware for the atlys, so the help is near :) | 03:55 |
| mithro | olofk: I have a Nexys sitting on my desk | 03:56 |
| mithro | actually a Nexys Video | 03:56 |
| mithro | olofk: we have a GSoC student working on rewriting the FX2 firmware to emulate the FTDI chip better | 03:56 |
| _franck__ | olofk: you're right I remember now | 04:27 |
| mithro | olofk: I got that adv_debug_jtag stuff working on the Atlys via the Digilent cable with OpenOCD, ixo-usb-jtag and misoc - but I've yet to finish cleaning it up and publishing | 05:53 |
| olofk | mithro: That's great. Did you only have to change the fx2 firmware for that, or were there any changes to adv_debug_sys too? | 07:48 |
| mithro | olofk: Most of it was misoc stuff | 07:49 |
| olofk | ah ok | 07:49 |
| mithro | and getting the right settings | 07:49 |
| olofk | So, not using misoc, what would one need to do? Flash the fx2 and then instantiate a Xilinx virtual jtag + adv_debug_sys? | 07:51 |
| olofk | And what protocol would I use for OpenOCD? | 07:52 |
| mithro | olofk: Do "fx2load <firmware>" then use OpenOCD with the right configuration (assuming the FPGA has the Xilinx+adv_debug_sys firmware running on it) | 07:52 |
| olofk | Nice. That makes it a lot more usable than before | 07:55 |
| olofk | Just sucks that I haven't had an Atlys board for three years now | 07:55 |
| mithro | olofk: It also works with the Opsis board | 07:59 |
| olofk | Looks like the ghdl backend in FuseSoC hasn't been used too much | 15:24 |
| olofk | Turns out it doesn't work at all :) | 15:24 |
| olofk | Good thing I waited a bit to release FuseSoC 1.5. Found two pretty severe bugs so far | 15:24 |
| ssvb | is http://www.cnx-software.com/2016/05/24/linksprite-o-board-altera-cyclone-iv-fpga-development-board-targets-openrisc-development a clone of http://opencores.org/or1k/Ordb2a-ep4ce22 ? | 19:40 |
| --- Log closed Fri Jul 22 00:00:50 2016 | ||
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