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| sab_123 | mithro, HI | 04:14 |
|---|---|---|
| mithro | sab_123: can't really talk now | 04:19 |
| mithro | https://github.com/mithro/fx2-ftdi-emulation/tree/master/bitbang | 04:19 |
| tpb | Title: fx2-ftdi-emulation/bitbang at master · mithro/fx2-ftdi-emulation · GitHub (at github.com) | 04:19 |
| mithro | That is my attempt at writing a bunch of very fast bit banging algorithms | 04:21 |
| sab_123 | oh, I dont use algorithms, I use something like this | 04:22 |
| sab_123 | https://github.com/RacingTornado/fx2lib_serial_uart/blob/i2c_interrupts/examples/i2c_mpsse/soft_uart.c#L467 | 04:23 |
| tpb | Title: fx2lib_serial_uart/soft_uart.c at i2c_interrupts · RacingTornado/fx2lib_serial_uart · GitHub (at github.com) | 04:23 |
| sab_123 | Thats my first attempt | 04:23 |
| mithro | Note that every instruction counts | 04:23 |
| sab_123 | yes | 04:24 |
| sab_123 | optimized highly | 04:24 |
| sab_123 | it is 12 total cycles | 04:24 |
| sab_123 | which is about 1us | 04:24 |
| sab_123 | for every bit | 04:24 |
| sab_123 | right now, still debugging some timing issues, but there is another concern that I have, please let me know when you are free | 04:25 |
| mithro | I think for sending you can get it down to 6 cycles but I might be misremembering | 04:28 |
| mithro | How fast in kilobits is this by the way? | 04:30 |
| sab_123 | mithro, i have introduced 27 cycles of delay | 04:30 |
| sab_123 | to get it compatible with 115200 | 04:30 |
| sab_123 | thats the djnz which you see there | 04:31 |
| mithro | Btw I'm currently walking somewhere, so might disappear any time | 04:31 |
| sab_123 | i have another important concern | 04:31 |
| sab_123 | the sdcc is generating firmware with __xdata directive which causes the whole program to crash | 04:31 |
| sab_123 | without __xdata I run out of DSEG | 04:32 |
| sab_123 | and cant write a program | 04:32 |
| sab_123 | Have you faced something like this? | 04:32 |
| mithro | Your doing something wrong then | 04:32 |
| mithro | Sdcc needs a bunch of extra settings to understand the fx2 | 04:32 |
| sab_123 | ah okay | 04:33 |
| sab_123 | I though fx2lib took care of that | 04:33 |
| sab_123 | But I will go through the FX2 manual | 04:33 |
| sab_123 | and the SDCC manual | 04:33 |
| mithro | Yes it does in the make file | 04:33 |
| sab_123 | I will debug some more | 04:33 |
| mithro | There are some settings you can tweak there | 04:33 |
| mithro | Turn on the memory listing stuff | 04:34 |
| sab_123 | ok | 04:34 |
| mithro | And you can see where it is putting everything | 04:34 |
| sab_123 | ok | 04:34 |
| mithro | You can also force sdcc to put things in the different segments | 04:35 |
| sab_123 | yep, I am reading up on SDCC | 04:35 |
| mithro | Btw what version of sdcc are you using? | 04:35 |
| mithro | 3.5 is recommended | 04:36 |
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| sab_123 | okay | 04:36 |
| mithro | CarlFK: ping? | 04:36 |
| sab_123 | I will try to use 3.5 then | 04:36 |
| mithro | Might be worth trying the 3.6 release candidate to | 04:37 |
| CarlFK | mithro: pong | 04:37 |
| mithro | Can you try the new mode switch and the udev rules | 04:38 |
| mithro | I haven't tested on an Atlys recently | 04:39 |
| mithro | I was going to this weekend but it's not looking likely | 04:39 |
| mithro | It should give you /dev/hdmi2usb/... nodes | 04:40 |
| mithro | sab_123: can you make an example firmware which I can load onto an fx2 and just send "hello world" continually (suitable to be merged into my fx2lib) | 04:42 |
| CarlFK | mithro: sure, I can do that now | 04:42 |
| mithro | I merged the cleanup bench l branch | 04:47 |
| CarlFK | mithro: on the Atlys, do you know which usb port I need for testing? | 04:50 |
| CarlFK | I only have 1 cable handy | 04:50 |
| CarlFK | mithro: and do I keep using the opsis-prod branch? | 05:03 |
| mithro | No | 05:04 |
| mithro | Bblr | 05:04 |
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| sab_123 | mithro, sorry i was away | 05:14 |
| sab_123 | mithro, You want to send Hello World from the FX2 | 05:15 |
| sab_123 | mithro, or to the FX2 from the computer | 05:15 |
| sab_123 | or via serial | 05:15 |
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| Joelw | mithro: You've probably seen this already, but just in case you hadn't: https://blog.danman.eu/new-version-of-lenkeng-hdmi-over-ip-extender-lkv373a/ | 06:06 |
| Joelw | Live streaming directly to YouTube with one ffmpeg command is pretty nifty. | 06:07 |
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| mithro | Joelw: no, I hadn't see that | 10:34 |
| mithro | sab_123: Out the FX2 pins, no computer or USB involved | 10:34 |
| sab_123 | sure mithro | 10:40 |
| sab_123 | you can take a look at the latest branch | 10:41 |
| sab_123 | it does this right now | 10:41 |
| sab_123 | https://github.com/RacingTornado/fx2lib_serial_uart/tree/i2c_interrupts/examples/i2c_mpsse | 10:41 |
| tpb | Title: fx2lib_serial_uart/examples/i2c_mpsse at i2c_interrupts · RacingTornado/fx2lib_serial_uart · GitHub (at github.com) | 10:41 |
| sab_123 | This is the latest one | 10:41 |
| sab_123 | Still being developed so please ignore the indenting | 10:42 |
| mithro | sab_123: As I mentioned, I want a pull request which is mergable into my fx2lib | 10:42 |
| sab_123 | I will clean everything up | 10:42 |
| sab_123 | then submit a pull request | 10:42 |
| sab_123 | mithro, is tomorrow okay | 10:44 |
| sab_123 | ?? | 10:44 |
| mithro | sab_123: sure | 10:44 |
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| Joelw | mithro: You should totally check that out, then. | 13:10 |
| mithro | Joelw: I saw the previous one | 13:10 |
| mithro | Will have to buy some and pull apart | 13:10 |
| Joelw | Totes | 13:17 |
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| aravind_ | Hello Mithro | 19:39 |
| aravind_ | Hello | 19:44 |
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