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| MaZderMind | fyi I just pushed a bunch of documentation to https://github.com/voc/voctomix/ and https://github.com/voc/voctomix/blob/master/voctocore | 09:50 |
|---|---|---|
| tpb | Title: voc/voctomix ยท GitHub (at github.com) | 09:50 |
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| mithro | hey _florent_, got a moment? | 16:09 |
| _florent_ | hi | 16:09 |
| _florent_ | yes | 16:09 |
| mithro | _florent_: I'm still trying to get a UART up and running on the prod board | 16:10 |
| mithro | but I finally got an LED to blink - so I'm making progress | 16:10 |
| _florent_ | good | 16:11 |
| mithro | _florent_: what way "around" are the subsignals on the serial port? | 16:11 |
| _florent_ | can you explain a little bit what you are testing? | 16:12 |
| mithro | rx means from the external device into the FPGA right? | 16:12 |
| _florent_ | yes rx is external --> FPGA | 16:13 |
| mithro | _florent_: I'm trying to read the UART data using the FX2 chip | 16:13 |
| mithro | _florent_: turns out I don't have a USB-UART module which is compatible with 1.5V IO :-/ | 16:14 |
| mithro | _florent_: and we didn't break out any of the 3.3V pins to an easy accessible header | 16:14 |
| _florent_ | too bad | 16:16 |
| _florent_ | so the uart pins are connected to the FX2? | 16:16 |
| mithro | yeah | 16:17 |
| mithro | so I'm trying to write some firmware on the FX2 to work like a serial UART | 16:17 |
| _florent_ | OK, so to test the FX2 firmware you should just do a rx --> tx loopback on the FPGA | 16:18 |
| mithro | _florent_: I'd like to just get the transmit from FPGA to cypress working first | 16:19 |
| mithro | _florent_: so I just modified the misoc bios to continually write "hello" out the uart | 16:20 |
| mithro | _florent_: and trying to get the led connected to the FX2 to light up when it thinks its received a UART byte | 16:20 |
| _florent_ | ok yes you can do that this way too | 16:21 |
| _florent_ | about your led blinking, it was with the CPU? | 16:21 |
| mithro | _florent_: with the FX2 | 16:37 |
| mithro | well, bedtime for me - I should connect up a scope to the UART lines and check things that way | 16:41 |
| mithro | at the moment, I can't get the FX2 UART receive flag to trigger | 16:41 |
| mithro | putting the UART lines on a header is already on the TODO lists :) | 16:42 |
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