From c843e1ea6b9ccaf7cfe70182f04e82f143cb289a Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 3 Jul 2013 21:02:45 +0000
Subject: implemented basic commands

git-svn-id: https://svn.spreadspace.org/pic/trunk@26 a09c6847-51d9-44de-8ef2-e725cf50f3c7
---
 downloader/proto.txt | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

(limited to 'downloader/proto.txt')

diff --git a/downloader/proto.txt b/downloader/proto.txt
index 1228811..826be5f 100644
--- a/downloader/proto.txt
+++ b/downloader/proto.txt
@@ -17,7 +17,7 @@ Description:
 
 Every command consits of one byte command code, a fixed number of bytes as
 arguments and ends with a XOR checksum over all bytes sent. All data is
-transferred LSB first.
+transferred LSB first (aka little endian). All addresses and words are 2bytes long.
 Every answer to a command starts with the command code. One byte return value,
 optionally some data and a checksum (XOR over all bytes received)
 The return codes have the following meaning:
@@ -138,7 +138,7 @@ read eeprom:
     'e' | <ret> | data | <csum>
 
   The bootloader reads <len> bytes from eeprom at address <addr> and returns it as
-  <data>.
+  <data>. len is 2bytes long.
 
 
 write eeprom:
@@ -151,7 +151,7 @@ write eeprom:
     'E' | <ret> | <csum>
 
   The bootloader writes <data> (which has to contain exactly <len> bytes) to address
-  <addr> inside the eeprom.
+  <addr> inside the eeprom. len is 2bytes long.
 
 
 read config:
@@ -163,7 +163,8 @@ read config:
    answer:
      'c' | <ret> | word | <csum>
 
-   The bootloader reads and returns the configuration word number <nr>.
+   The bootloader reads and returns the configuration word number <nr>. <nr> is one
+   byte long.
 
 
 write config:
@@ -175,4 +176,5 @@ write config:
    answer:
      'C' | <ret> | <csum>
 
-   The bootloader writes <word> onto configuration word number <nr>.
+   The bootloader writes <word> onto configuration word number <nr>. <nr> is one
+   byte long
-- 
cgit v1.2.3