Search results

I checked both pin 9 from the GLU and pin 16 on the PIC, and my scope reads 3.672 MHz but super jittery. I checked pin 6 and 7 for any sort of signal but didn't see any. I have logic analyzer dumps that track pins 1-3, 8-10, 17 and 18 if that'd shed light on anything.

Sort of... its possible, but not really prudent. The physical layout of the connector might be different but the signaling for the 128k / 512k / Plus / SE / SE/30 are all the same. The SE-type motherboard just drops the battery and speaker pins and adds way more grounding (Edit: It also adds...

I'm aware, however, I'm not really familiar with PIC assembly so looking at this: I didn't realize that, btfsc PORTA, RA3 was a shortcut to "test pin RA3, skip if clear" thus the disassembly in ghidra. The de-compilation is a nice to have but there's other things I wanted like the control...

Update: I did realize that I needed to enable at least CLOCKIN on the PIC16F54 but that didn't seem to improve the situation. The EEPROM seems to read/write fine but hooking up a logic analyzer the chip doesn't actually seem to do anything after power on compared to the standard ADB chip. I...

Circling back to this: it does appear that the TSM is swappable between the Plus and the 512k at least in the trivial case. I've tested swapping just the 16R8 of the Plus for the 16R4 TSM from a 512k and it works to the point where you get the flashing disk icon. I haven't tested past that...

It was the straight defaults in XGecu. I can def test that but first, I have a few more spares so I can try with a different programmer over the weekend while I have the test SE board out to add a socket to the CPU.

Yeah when I looked into this originally -5 and -12V are only used for serial. Supplying nothing but +5 and +12 and then using RGB2HDMI is feasible, though I won't call this outright success-- it's not flashing the icon, which means I'm probably not providing enough current and the CPU glitched:

Pin 2 is missing on the logic board. I know the SE motherboard needs +5V and +12V, but it's easily taken care of by an XL6019. I'll try to confirm its both +5V and +12V on the earlier motherboards but I also don't have access to the Plus logic board and I'm currently playing Find The Short on...

I did try this with a PIC16F54 and a TL866II and it didn't get past the gray screen before the mouse pointer, but that might fully be a process error on my part flashing it.

I had similar issues with a Performa 630 series and issue wasn't the adapter, it was the flash card. I had to replace the SanDisk card I used with this one: https://www.amazon.com/gp/product/B00009967Y/

I can confirm this is the main issue, the Classic profile turns sync on green on and that needs to be turned off.