diff --git a/recipes/rc2014/eeprom/README.md b/recipes/rc2014/eeprom/README.md index c5bfae4..53767e7 100644 --- a/recipes/rc2014/eeprom/README.md +++ b/recipes/rc2014/eeprom/README.md @@ -34,19 +34,13 @@ I don't think you need a schematic. It's really simple. ### Building the binary -You build the binary by modifying the base recipe's `xcomp` unit. This binary -is missing 2 things: Addressed devices and the AT28 Driver. +The binary from the base recipe has almost all it needs to write to EEPROM. The +only thing it needs is the AT28 driver from B590. You could add it to the +`xcomp` unit and rebuild, but the driver is so tiny, you're probably better off +loading it at runtime. -Addressed devices are at B140. If you read that block, you'll see that it tells -you to load block 142. Open the `xcomp` unit and locate the ACIA driver loading -line. Insert your new load line after that one. - -Do the same thing with the AT28 driver (B590) - -You also have to modify the initialization sequence at the end of the `xcomp` -unit to include `ADEV$`. - -Build again, write `os.com` to EEPROM. +If your system has mass storage, it's as easy as a LOAD. If it doesn't, you +can use `/tools/exec` to send `blk/591` to the RC2014. ## Writing contents to the AT28 @@ -58,7 +52,7 @@ run this from your modern computer: ./upload a000 Then, activate `AT28!` with `' AT28! A!* !` and then run -`0xa000 0x2000 AMOVE`. `AT28!` checks every myte for integrity, +`0xa000 0x2000 AMOVE`. `AT28!` checks every byte for integrity, so it there's no error, you should be fine. Your content is now on the EEPROM! Why not upload content directly to `0x2000` after having activated `AT28!`?