From b5fd93f578b28377a95d5cec71771f77e8470ac0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A1szl=C3=B3=20Monda?= <laci@monda.hu>
Date: Wed, 26 Jul 2017 16:11:41 +0200
Subject: [PATCH] Send address bytes to the EEPROM in the right order.

---
 right/src/eeprom.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/right/src/eeprom.c b/right/src/eeprom.c
index af7932e..2257696 100644
--- a/right/src/eeprom.c
+++ b/right/src/eeprom.c
@@ -17,6 +17,7 @@ static uint16_t eepromStartAddress;
 static uint16_t sourceLength;
 static uint8_t writeLength;
 static bool isReadSent;
+static uint8_t addressBuffer[EEPROM_ADDRESS_LENGTH];
 
 static status_t i2cAsyncWrite(uint8_t *data, size_t dataSize)
 {
@@ -40,8 +41,8 @@ static status_t writePage()
 {
     static uint8_t buffer[EEPROM_BUFFER_SIZE];
     uint16_t targetEepromOffset = sourceOffset + eepromStartAddress;
-    buffer[0] = targetEepromOffset & 0xff;
-    buffer[1] = targetEepromOffset >> 8;
+    buffer[0] = targetEepromOffset >> 8;
+    buffer[1] = targetEepromOffset & 0xff;
     writeLength = MIN(sourceLength - sourceOffset, EEPROM_PAGE_SIZE);
     memcpy(buffer+EEPROM_ADDRESS_LENGTH, sourceBuffer+sourceOffset, writeLength);
     status_t status = i2cAsyncWrite(buffer, writeLength+EEPROM_ADDRESS_LENGTH);
@@ -99,12 +100,14 @@ status_t EEPROM_LaunchTransfer(eeprom_transfer_t transferType)
     bool isHardwareConfig = CurrentEepromTransfer == EepromTransfer_ReadHardwareConfiguration ||
                             CurrentEepromTransfer == EepromTransfer_WriteHardwareConfiguration;
     eepromStartAddress = isHardwareConfig ? 0 : HARDWARE_CONFIG_SIZE;
+    addressBuffer[0] = eepromStartAddress >> 8;
+    addressBuffer[1] = eepromStartAddress & 0xff;
 
     switch (transferType) {
         case EepromTransfer_ReadHardwareConfiguration:
         case EepromTransfer_ReadUserConfiguration:
             isReadSent = false;
-            LastEepromTransferStatus = i2cAsyncWrite((uint8_t*)&eepromStartAddress, EEPROM_ADDRESS_LENGTH);
+            LastEepromTransferStatus = i2cAsyncWrite(addressBuffer, EEPROM_ADDRESS_LENGTH);
             break;
         case EepromTransfer_WriteHardwareConfiguration:
         case EepromTransfer_WriteUserConfiguration: