Hacking Hardware Picofly - a HWFLY switch modchip

juanvlc

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just built the adapter since i didnt have the otherside of the connector so i pealed of a bit and solderd it to it and addes some uv resin for streng and well guess what im able to flash it :-)

edit: i realized the picture is uploaded showed outter bridges so i added it so no one bridges THEM xD



View attachment 360557View attachment 360579

View attachment 360558
Many thanks mate!!! You are very talentous and clever
Y2o63cM.jpg

r7zZIlk.jpg
 
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snaker

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froggestspirit

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Is there any way to change the pins used? I have a couple Tiny2040, they have all the pins needed minus pin 15
 

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billybobxxx

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Is there any way to change the pins used? I have a couple Tiny2040, they have all the pins needed minus pin 15
you need this pin...dont seem to have SPI1 TX anywhere on this tiny2040 but you can give a shot to pin 3 or 7 on you tiny2040 maybe it will work because its also I2C1 SCL its my guess....
 

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llskankzll

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I'm using RP2040 one and I'm only getting one quick red light. Is it my installation or the chip is blank (i hold down boot, plug it in and drop the 2.5 fw.ufc & reboot)? I'm using the v2 hwfly cpu cable on a v2 (use the 3, 4 or 3-4 points on the cable), added 47 ohm on the 3 points and 20 ohm on the reset point. I tried my wiring (removed the wire on the cpu cable and removed the resistors) with hwfly oled chip and it boot up.
 
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billybobxxx

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I'm using RP2040 one and I'm only getting one quick red light. Is it my installation or the chip is blank (i hold down boot, plug it in and drop the 2.5 fw.ufc & reboot)? I'm using the v2 hwfly cpu cable on a v2 (use the 3, 4 or 3-4 points on the cable), added 47 ohm on the 3 points and 20 ohm on the reset point. I tried my wiring (removed the wire on the cpu cable and removed the resistors) with hwfly oled chip and it boot up.
Try to remove the 20 ohm resistor on the reset..try without anything. If its not working you can try with 20k ohm or 30k ohm on rst point.
 
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lufeig

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CYAN - no reaction to glitch. try installing second mosfet like on the picture few pages ago

Yes u will have to install a second MOSFET like @rehius said I had the same issue after installing second MOSFET it worked fine
thanks @rehius and @Dee87!

I installed a second mosfet as per instruction, but it keep booting to OFW and a red screen.

I'll order a lite ribbon cable and try again when it arrives. It seems I can't install mosfets adequately.
 

froggestspirit

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you need this pin...dont seem to have SPI1 TX anywhere on this tiny2040 but you can give a shot to pin 3 or 7 on you tiny2040 maybe it will work because its also I2C1 SCL its my guess....
Nah, im pretty sure it has to be enabled on a software level. Them being I2C1 just means they can't both be configured to it at the same time with different signals. Might not be too hard to modify on an asm level..
 

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