added in DataFlash.cpp

forgot this ....

libraries/DataFlash/DataFlash.cpp

@@ -0,0 +1,187 @@
+/// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
+/*
+	DataFlash.cpp - DataFlash log library generic code
+*/
+
+#include <stdint.h>
+#include "DataFlash.h"
+
+
+// *** DATAFLASH PUBLIC FUNCTIONS ***
+void DataFlash_Class::StartWrite(int16_t PageAdr)
+{
+    df_BufferNum=1;
+    df_BufferIdx=4;
+    df_PageAdr=PageAdr;
+    df_Stop_Write=0;
+    WaitReady();
+
+    // We are starting a new page - write FileNumber and FilePage
+    BufferWrite(df_BufferNum,0,df_FileNumber>>8);   // High byte
+    BufferWrite(df_BufferNum,1,df_FileNumber&0xFF); // Low byte
+    BufferWrite(df_BufferNum,2,df_FilePage>>8);   // High byte
+    BufferWrite(df_BufferNum,3,df_FilePage&0xFF); // Low byte
+}
+
+void DataFlash_Class::FinishWrite(void)
+{
+	df_BufferIdx=0;
+	BufferToPage(df_BufferNum,df_PageAdr,0);  // Write Buffer to memory, NO WAIT
+	df_PageAdr++;
+	if (DF_OVERWRITE_DATA==1) {
+        if (df_PageAdr>df_NumPages)  // If we reach the end of the memory, start from the begining
+            df_PageAdr = 1;
+    } else {
+        if (df_PageAdr>df_NumPages)  // If we reach the end of the memory, stop here
+            df_Stop_Write=1;
+    }
+
+	if (df_BufferNum==1)  // Change buffer to continue writing...
+        df_BufferNum=2;
+	else
+        df_BufferNum=1;
+}
+
+
+void DataFlash_Class::WriteByte(uint8_t data)
+{
+    if (!df_Stop_Write) {
+        BufferWrite(df_BufferNum,df_BufferIdx,data);
+        df_BufferIdx++;
+        if (df_BufferIdx >= df_PageSize)  // End of buffer?
+        {
+            df_BufferIdx=4;		//(4 bytes for FileNumber, FilePage)
+            BufferToPage(df_BufferNum,df_PageAdr,0);  // Write Buffer to memory, NO WAIT
+            df_PageAdr++;
+            if (DF_OVERWRITE_DATA==1)
+            {
+                if (df_PageAdr>df_NumPages)  // If we reach the end of the memory, start from the begining
+                    df_PageAdr = 1;
+            }
+            else
+            {
+                if (df_PageAdr>df_NumPages)  // If we reach the end of the memory, stop here
+                    df_Stop_Write=1;
+            }
+            
+            if (df_BufferNum==1)  // Change buffer to continue writing...
+                df_BufferNum=2;
+            else
+                df_BufferNum=1;
+
+            // We are starting a new page - write FileNumber and FilePage
+            BufferWrite(df_BufferNum,0,df_FileNumber>>8);   // High byte
+            BufferWrite(df_BufferNum,1,df_FileNumber&0xFF); // Low byte
+            df_FilePage++;
+            BufferWrite(df_BufferNum,2,df_FilePage>>8);   // High byte
+            BufferWrite(df_BufferNum,3,df_FilePage&0xFF); // Low byte
+        }
+    }
+}
+
+void DataFlash_Class::WriteInt(int16_t data)
+{
+    WriteByte(data>>8);   // High byte
+    WriteByte(data&0xFF); // Low byte
+}
+
+void DataFlash_Class::WriteLong(int32_t data)
+{
+    WriteByte(data>>24);   // First byte
+    WriteByte(data>>16);
+    WriteByte(data>>8);
+    WriteByte(data&0xFF);  // Last byte
+}
+
+// Get the last page written to
+int16_t DataFlash_Class::GetWritePage()
+{
+    return df_PageAdr;
+}
+
+// Get the last page read
+int16_t DataFlash_Class::GetPage()
+{
+  return df_Read_PageAdr-1;
+}
+
+void DataFlash_Class::StartRead(int16_t PageAdr)
+{
+    df_Read_BufferNum=1;
+    df_Read_BufferIdx=4;
+    df_Read_PageAdr=PageAdr;
+    WaitReady();
+    PageToBuffer(df_Read_BufferNum,df_Read_PageAdr);  // Write Memory page to buffer
+//Serial.print(df_Read_PageAdr, DEC);	Serial.print("\t");
+    df_Read_PageAdr++;
+
+    // We are starting a new page - read FileNumber and FilePage
+    df_FileNumber = BufferRead(df_Read_BufferNum,0);   // High byte
+//Serial.print(df_FileNumber, DEC);	Serial.print("\t");
+    df_FileNumber = (df_FileNumber<<8) | BufferRead(df_Read_BufferNum,1); // Low byte
+//Serial.println(df_FileNumber, DEC);	Serial.print("\t");
+    df_FilePage = BufferRead(df_Read_BufferNum,2);   // High byte
+    df_FilePage = (df_FilePage<<8) | BufferRead(df_Read_BufferNum,3); // Low byte
+}
+
+uint8_t DataFlash_Class::ReadByte()
+{
+    uint8_t result;
+
+    WaitReady();
+    result = BufferRead(df_Read_BufferNum,df_Read_BufferIdx);
+    df_Read_BufferIdx++;
+    if (df_Read_BufferIdx >= df_PageSize)  // End of buffer?
+    {
+        df_Read_BufferIdx=4;		//(4 bytes for FileNumber, FilePage)
+        PageToBuffer(df_Read_BufferNum,df_Read_PageAdr);  // Write memory page to Buffer
+        df_Read_PageAdr++;
+        if (df_Read_PageAdr>df_NumPages)  // If we reach the end of the memory, start from the begining
+        {
+            df_Read_PageAdr = 0;
+        }
+        
+        // We are starting a new page - read FileNumber and FilePage
+		df_FileNumber = BufferRead(df_Read_BufferNum,0);   // High byte
+		df_FileNumber = (df_FileNumber<<8) | BufferRead(df_Read_BufferNum,1); // Low byte
+		df_FilePage = BufferRead(df_Read_BufferNum,2);   // High byte
+		df_FilePage = (df_FilePage<<8) | BufferRead(df_Read_BufferNum,3); // Low byte
+    }
+    return result;
+}
+
+int16_t DataFlash_Class::ReadInt()
+{
+    uint16_t result;
+
+    result = ReadByte();               // High byte
+    result = (result<<8) | ReadByte(); // Low byte
+    return (int16_t)result;
+}
+
+int32_t DataFlash_Class::ReadLong()
+{
+    uint32_t result;
+
+    result = ReadByte();               // First byte
+    result = (result<<8) | ReadByte();
+    result = (result<<8) | ReadByte();
+    result = (result<<8) | ReadByte(); // Last byte
+    return (int32_t)result;
+}
+
+void DataFlash_Class::SetFileNumber(uint16_t FileNumber)
+{
+	df_FileNumber = FileNumber;
+	df_FilePage = 1;
+}
+
+uint16_t DataFlash_Class::GetFileNumber()
+{
+	return df_FileNumber;
+}
+
+uint16_t DataFlash_Class::GetFilePage()
+{
+	return df_FilePage;
+}