Trying to Connect To The Mega Drive Mini 2 Via Its UART

spannernick
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Posts: 2,999

Trying to Connect To The Mega Drive Mini 2 Via Its UART Jul 19, 2024 14:38:53 GMT

Quote

Post by spannernick on Jul 19, 2024 14:38:53 GMT

I soldered two wires on the bottom of its PCB Board and connected it to my USBserial but no luck at the moment, shows nothing in Putty.

This is what I did...

As far as I know the UART here...

Bottom of the MD Mini 2 board, the three solder pads but two are only used.

https://i.ibb.co/k6FZPmf/mdmini2-pads1.png

Top of the MD Mini 2 board, where the two pads go to, the SoC chip

https://i.ibb.co/MGMCKtT/mdmini2-pads2.png

Soldered with two wires on them...

https://i.ibb.co/MZLL84w/20240718-175221.jpg

https://i.ibb.co/ssgNLkC/mdmini2-pads3.png

then connected it to a CP2102 USB TTL USB2Serial Module but getting nothing in putty, only able to type letters across the screen in putty but only one line press enter and goes back to the beginning of the line, weird no kernal text from boot up from the MD Mini 2.

https://i.ibb.co/35XPCpc/mdmini2-putty.png

If anyone could help that would be great, its acting like that is not where the uart is on the MD Mini 2 board.
Unless I broke the uart, I do not see that.

Last Edit: Jul 20, 2024 13:04:18 GMT by spannernick

spannernick THEC64 Administrator PCUAE Creator.. :) Posts: 2,999	Trying to Connect To The Mega Drive Mini 2 Via Its UART Jul 19, 2024 19:34:10 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by spannernick on Jul 19, 2024 19:34:10 GMT Tested the 2 pads and they are connected to Ground... weird..
	Last Edit: Jul 19, 2024 19:35:56 GMT by spannernick 1

jj0 THEC64 Developer Manic Miner rules! Posts: 1,058	Trying to Connect To The Mega Drive Mini 2 Via Its UART Jul 20, 2024 11:08:44 GMT Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by jj0 on Jul 20, 2024 11:08:44 GMT None of the pictures in the 1st post work anymore - probably due to linking to Discord?

spannernick THEC64 Administrator PCUAE Creator.. :) Posts: 2,999	Trying to Connect To The Mega Drive Mini 2 Via Its UART Jul 20, 2024 13:04:39 GMT jj0 likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by spannernick on Jul 20, 2024 13:04:39 GMT Jul 20, 2024 11:08:44 GMT jj0 said: None of the pictures in the 1st post work anymore - probably due to linking to Discord? sorted it... images are now on ImgBB..
	Last Edit: Jul 20, 2024 13:06:26 GMT by spannernick 1

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Trying to Connect To The Mega Drive Mini 2 Via Its UART

Post by spannernick on Jul 19, 2024 14:38:53 GMT

Post by spannernick on Jul 19, 2024 19:34:10 GMT

Post by jj0 on Jul 20, 2024 11:08:44 GMT

Post by spannernick on Jul 20, 2024 13:04:39 GMT

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