Support for RPI pico V2 rp2350 ARM

[vslinuxdotnet]

Hello,
Congrats for the project!!
I try to build it for Pico V2 and i successful done it and have VGA image.
Instructions:

in firmware/src/Pico.cpp line 61:

std::cerr << "clk_rtc = " << frequency_count_khz(CLOCKS_FC0_SRC_VALUE_CLK_RTC)
to
std::cerr << "clk_rtc = " << frequency_count_khz(CLOCKS_FC0_SRC_VALUE_CLK_ADC)

build it:
make -DCMAKE_BUILD_TYPE=Release -DPICO_PLATFORM=rp2350-arm-s -DPICO_FREQ=270000 -DPICO_SDK_PATH= ../src/
make

My goal is use it to convert jamma arcade machine, that use 15khz but use csync not vsync & hsync.
I will need LM1881 IC to split it.
Regards

[scrapcomputing]

Hi,

Awesome! I haven't actually tried it on a Pico 2 yet, thanks for the notes :D
I will update the code such that I can release images for both Pico 1 and 2.

Thanks again!

[scrapcomputing]

I just update the repository to officially support Pico 2 and have included a Pico 2 firmware image in the releases.
Thanks again for your looking into this.

By the way, supporting composite input would be really cool. If the hardware needed is not too much perhaps I could add some pads for the LM1881 and the RCA jack. If you manage to get it working feel free to share the schematic, there may be other people looking for this!

[mbg-audio]

I have chinese RP2 pico, don't know is it working (blinking led app works), tried the compiled file - does not update when I paste it in the directory. The module takes files for the RP1 but does not work with them, also the rp2 files does not start the update in the rp1.

About the PCB - I thought about making PCB with LM1881, SCART and 4x BNC connectors for full compatibility with everything. Just need two more jumpers for disconnecting LM1881 IC when not used. Now I do not have much free time, but when I do will make it. Also found cheaper VGA connector, available at Mouser and Digikey - part number ICD15S13E6GV00LF

[scrapcomputing]

@mbg-audio are you still having issues with the latest firmwares?

A board with an LM1881 would be awesome!