Hello everyone!
I'm having trouble writing and reading flash meory. The below is the code to write and read values.
Writing code:
Flash_ptrBfloat=(float *) 0x1900;
FCTL3 = FWKEY; // Clear Lock bit
FCTL1 = FWKEY+ERASE; // Set Erase bit
*Flash_ptrBfloat = 0; // Dummy write to erase Flash seg
FCTL1 = FWKEY+BLKWRT; // Enable long-word write
Flash_ptrBfloat=(float *) 0x1904;
*Flash_ptrBfloat = nPipeDia; // Write to Flash
Flash_ptrBfloat=(float *) 0x1908;
*Flash_ptrBfloat = nTravelDistance; // Write to Flash
Flash_ptrBfloat=(float *) 0x190C;
*Flash_ptrBfloat = nStaticDistance; // Write to Flash
Flash_ptrBfloat=(float *) 0x1914;
*Flash_ptrBfloat = nScaleFactor; // Write to Flash
Flash_ptrBuint32_t = (uint32_t *) 0x1918;
*Flash_ptrBfloat = nSerialNo; // Write to Flash
FCTL1 = FWKEY; // Clear WRT bit
FCTL3 = FWKEY+LOCK;
Reading code
Flash_ptrBfloat=(float *) 0x1904;
nPipeDia=*Flash_ptrBfloat;
Flash_ptrBfloat=(float *) 0x1908;
nTravelDistance=*Flash_ptrBfloat;
Flash_ptrBfloat=(float *) 0x190C;
nStaticDistance=*Flash_ptrBfloat;
Flash_ptrBfloat=(float *) 0x1910;
nScaleFactor=*Flash_ptrBfloat;
Flash_ptrBuint32_t=(uint32_t *) 0x1914;
nSerialNo=*Flash_ptrBuint32_t;
The wrting and reading until 0x190C works fine. But from 0x1910, strange values are written and read. What am I doing wrong?
Plese help me.....
Sukho
Flash_ptrBfloat=(float *) 0x1900;
FCTL3 = FWKEY; // Clear Lock bit
FCTL1 = FWKEY+ERASE; // Set Erase bit
*Flash_ptrBfloat = 0; // Dummy write to erase Flash seg
FCTL1 = FWKEY+BLKWRT; // Enable long-word write
Flash_ptrBfloat=(float *) 0x1904;
*Flash_ptrBfloat = nPipeDia; // Write to Flash
Flash_ptrBfloat=(float *) 0x1908;
*Flash_ptrBfloat = nTravelDistance; // Write to Flash
Flash_ptrBfloat=(float *) 0x190C;
*Flash_ptrBfloat = nStaticDistance; // Write to Flash
Flash_ptrBfloat=(float *) 0x1914;
*Flash_ptrBfloat = nScaleFactor; // Write to Flash
Flash_ptrBuint32_t = (uint32_t *) 0x1918;
*Flash_ptrBfloat = nSerialNo; // Write to Flash
FCTL1 = FWKEY; // Clear WRT bit
FCTL3 = FWKEY+LOCK;
