Source code can be downloaded from source:/Examples/SPI_DataFlash

Description
Testing (write/read) flash memory.

From the main.c source file:

Initialization
1     SystemInit();
2     CGU_Init();
3
4     AT45_Init();
Prepare buffer
1     for (i = 0; i < sizeof(writeBuffer); i++)
2     {
3         writeBuffer[i] = i;
4     }
Write page
1     AT45_ErasePage(baseaddr);
2     AT45_WritePage(baseaddr, writeBuffer, sizeof(writeBuffer));
Execution
 1     while (1)
 2     {
 3         // Clear read buffer
 4         for (i = 0; i < sizeof(writeBuffer); i++)
 5         {
 6             readBuffer[i] = ~writeBuffer[i];
 7         }
 8
 9         // Read data back
10         AT45_ReadPage(baseaddr, readBuffer, sizeof(readBuffer));
11
12         // Verify
13         for (i = 0; i < sizeof(writeBuffer); i++)
14         {
15             if ( writeBuffer[i] != readBuffer[i])
16             {
17                 while (1);  // catch th error
18             }
19         }
20     }