06:56 <Guest19> Hi is here somebody working with the lattice ecp5 fpga?

07:05 <tnt> yeah

07:08 <Guest19> I just bought an ecp5-evaluation board from lattice, and i want to program it with open-source tools, because in one year i have to pay for lattice-diamond to program the board

07:09 <Guest19> now i installed yosys and nextpnr and set up prjtrellis. So far the most things work

07:09 <Guest19> but when i program the board, it seems to stop after a few seconds.

07:10 <Guest19> i have flashed a blinky example, but it blinks only 3 times and stops then

07:12 <Guest19> how would be your approach to debug this behaviour?

07:20 <Guest19> Or is there any other place, where i could get help?

07:46 <xiretza[m]> that's really weird - it does work fine with lattice tools, right?

07:50 <Guest19> i didn't try yet

07:51 <Guest19> i have installed the lattice programmer already, but that doesn't find the board. I'am going to install lattice diamond now (i got an 1 year nodelocked license for the board)

07:56 <Guest19> another wierd thing is, if i press the reset button, the demo-program starts again (shouldn't this be erased after first flash?)

08:03 <xiretza[m]> not unless you overwrite the SPI flash, by default programming the FPGA only writes the configuration to SRAM

08:05 <Guest19> ah yes makes sense

08:19 <Guest19> hmm can't get lattice diamond so fast, because there is an error on the licensing page ...

09:03 <Guest19> i got disconnected ... did sombody say something in between?

09:08 <xiretza[m]> nope

11:37 <thardin> is it possible to have yosys synthesize to discrete 74xx logic?

11:37 <thardin> I don't see anything readymade for it

13:31 <gatecat> thardin: https://github.com/Ravenslofty/74xx-liberty

14:19 <thardin> sounds like the opposite of what I'm after (:

14:20 <thardin> or maybe not

14:25 <tnt> It does what you want, however the synthesis script is outdated and doesn't work with newer yosys AFAICT

14:40 <thardin> ic_count.py doesn't seem to get the count right for counter.v

14:40 <thardin> which generates two 74161's but the script says 8

14:46 <thardin> looks like it might come in useful anyway, thanks

17:57 <lofty> You know I'm here to ping for help, right?

18:05 <thardin> I was asking for a friend, but he figured out another solution to his problem