From 7483cc5b5923d6cf591bb798b376a2a01b2becc4 Mon Sep 17 00:00:00 2001 From: Tom Nisbet Date: Sun, 7 Aug 2022 08:54:50 -0400 Subject: [PATCH] Update README.md add link to 28C256 notes --- unlock-ben-eater-hardware/README.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/unlock-ben-eater-hardware/README.md b/unlock-ben-eater-hardware/README.md index 7b76edb..6b8e5a6 100644 --- a/unlock-ben-eater-hardware/README.md +++ b/unlock-ben-eater-hardware/README.md @@ -7,7 +7,9 @@ Utility to unlock 28C256 Software Data Protection (SDP) for the programmer design. This hardware is similar to the TommyPROM hardware, but it uses different shift register chips and different pin assignments. -To meet the timing requirements of the SDP unlock, this code uses direct port writes +To meet the +[timing requirements of the SDP unlock](https://tomnisbet.github.io/TommyPROM/28C256-notes/), +this code uses direct port writes to set and read values on the data bus. It will work with Arduino Uno and Nano hardware, but would require changes for other platforms.