NO free lunches here ![sad :( :(](/styles/default/xenforo/smilies/bb/sad.png)
IC4 is not needed for Ikaruga, as it's all 0xFF. The second half of the first 8MB block is NOT all 0's, and thus 'outside your skill level'![smile :) :)](/styles/default/xenforo/smilies/bb/smile.png)
I checked the 27C322 and it's OK, also gave the soldered flash pieces an inspection under the microscope and they look ok.
Does anyone know how the checksums in rom-check are calculated? I much prefer to check a checksum, than to de-solder and verify stuff.
![IMG_0756.JPG IMG_0756.JPG](https://www.arcade-projects.com/data/attachments/4/4576-94a803439c0b5ecfc7b09885e17e134a.jpg)
The little blue board is just an 1117 board I picked up from Ali, as it looks clean and is cheaper than anything I could bodge up myself, 1.69USD SHIPPED for 10 pcs![smile :) :)](/styles/default/xenforo/smilies/bb/smile.png)
https://www.aliexpress.com/item/2PC...Power-Supply-Module-AMS1117-3/1893396039.html
![sad :( :(](/styles/default/xenforo/smilies/bb/sad.png)
IC4 is not needed for Ikaruga, as it's all 0xFF. The second half of the first 8MB block is NOT all 0's, and thus 'outside your skill level'
![smile :) :)](/styles/default/xenforo/smilies/bb/smile.png)
I checked the 27C322 and it's OK, also gave the soldered flash pieces an inspection under the microscope and they look ok.
Does anyone know how the checksums in rom-check are calculated? I much prefer to check a checksum, than to de-solder and verify stuff.
![IMG_0756.JPG IMG_0756.JPG](https://www.arcade-projects.com/data/attachments/4/4576-94a803439c0b5ecfc7b09885e17e134a.jpg)
The little blue board is just an 1117 board I picked up from Ali, as it looks clean and is cheaper than anything I could bodge up myself, 1.69USD SHIPPED for 10 pcs
![smile :) :)](/styles/default/xenforo/smilies/bb/smile.png)
https://www.aliexpress.com/item/2PC...Power-Supply-Module-AMS1117-3/1893396039.html