atlas des actus
    
Mega65
25  février     09h59
Expansion board revD and new connector PCBs
   Spoiler: This is the new revE expansion board, and matching bridge board to connect it to the MEGA motherboard. Read below for the full story and adventure as usual, including to find out what that big hole in the bridging board is all about... The new revD MEGA expansion board PCBs...
18  février     11h14
More cartridge port fixes for the MEGA65
   Some cartridges are still not working correctly on the MEGA . These issues seem to not be restricted to the new R R boards. For example, Tiny Quest doesn’t work reliably. Thanks to Olivier, I now have this cartridge with me here at home, and have been investigating it for a...
30  janvier     07h54
MEGA65 R5 Cartridge Port VHDL Fixes
   With the new R board, we spotted a problem where some cartridges aren’t detected when inserted. This doesn’t happen if the C core is launched, so we know it’s not a hardware issue, but rather a VHDL issue, i.e., a bug in our FPGA program that is the MEGA . So time to quickly get to the...
22  janvier     10h28
Switching from CC65 to LLVM-MOS for the MEGA65 browser
   Up until now, I have been using CC for writing the MEGA browser. But while CC has been a thing of tremendous value for the community, as one of the only freely available and robust C compilers that can target the , it produces code that is quite large, and quite slow. This was...
15  janvier     12h04
Working on the Expansion Board: User-Port bring-up and other bits and pieces
   In the last blog post, I got the tape port working, which was nice. Now to get the user port working, and also deal with a number of other bits and pieces that need attacking.First, I have added de coupling capacitors to all the ICs in the schematic and PCB design, since they should be used,...