Documentation tweaks

bit2shift · Sep 21, 2018 · 1d2484b · 1d2484b
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diff --git a/README.md b/README.md
@@ -1,6 +1,6 @@
 # Serial Flasher Protocol Specification v1 for Arduino Due
 This implementation ~~uses~~ used software SPI (bit banging). 
-It uses hardware SPI through the ICSP header, since commit 2f98c47.
+It uses hardware SPI (`C̅S̅ → pin 52`) through the ICSP header since commit 2f98c47.
 
 ### Why bit banging?
 I needed to flash my laptop's BIOS and the Arduino Due was the only one I had running at 3.3V. 

diff --git a/serprog-due/serprog-due.ino b/serprog-due/serprog-due.ino
@@ -1,8 +1,8 @@
 /*
- * Serprog for Arduino Due using hardware SPI
+ * Serprog for Arduino Due using hardware SPI (CS on pin 52 by default, see below)
  * Use a Pomona SOIC-8 clip to program a soldered serial flash
  *
- * SOP8 clip pinout
+ * SOP8 clip pinout (Winbond 25Q64FV)
  * 1 -- /CS (CS)
  * 2 -- DO (MISO)
  * 3 -- /WP (pull-up)
@@ -31,7 +31,7 @@
  * 0x14 (Set SPI frequency)
  */
 
-//Change serial port and CS pin number accordingly
+//Change serial port and CS pin if using a different Arduino
 serprog sp(SerialUSB, 52);
 
 void setup()