6502 Mite Home Brew Computer Project Interlude Debugging Graphics

Summary

Implementing LOAD/SAVE to micro-SD card in a vintage Microsoft implementation of BASIC. While we're waiting for the next step in the build, I thought I'd offer a tutorial on how SPI works, showing the signaling data and the ... Beginning the process of adding a video board to my I've been porting various bits of my code over from serial I/O to the RA8875 video. I've shown all these videos about putting the hardware and software together, but realized that I never showed something more ... Getting the control signaling working for the TMS9918A video processor and the first (very basic) video output. After problems with flaky breadboards, I rebuilt again from scratch. I have a new potential video solution, which has also sparked an interesting new idea for the direction of this whole Uploading files and code using a version of the xmodem protocol. In celebration of crossing 100 subscribers, a quick video on the software work I've been doing lately. Code for the assembler is on ... Minor hardware (and physical) updates and software tour using the new ROM now that the input and output are self-contained. First attempt at using the logic analyzer to Adding a 6522 Versatile Interface Adapter (VIA) for first steps in I/O.