Hi devlopers, I am usign LPC 2138 ARM controller right now. It has only 32 Kb of SRAM, I have one array say " char Table[300][300] " of approx. 100 Kb. I want to store this table in on chip flash memory which is 512 Kb, can anyone guide me how to accomplish this task. I am using Keil u vision3 compioler and MCB 2138 board [having LPC2138 controller], and using flash programming with LPC flash utility [COM]. Thanks in advance, Saurabh Pandya
I am not aware of the exact procedure to be followed for writing data to the flash memory for the device that you are using, but then in case of MSC1210 there are hardware configuration bits for alloting the size of flash to be used as data. This area of the memory has to be accessed using ROM routines already resident in the MSC.
It probably also depends on which compiler you're using - GCC, CARM, or RealView? http://www.keil.com/arm/
Dear friend. Thanks for kind support. I am now able to save my whole "char table[400][300]" on onchip flash of LPC2138 [512 kb]. I have used various IAP commands for this. I want to read various parts of this table back to SRAM , i read in Data sheet that, reading of flash can be accomplish through absolute addressing. But it is not working somehow, and i am not ablr to read data back. I am using following code (psudo) char *FlashPointer; /* pointer that points 1st location of sector 5 */ FlashPointer = 0x5000; for(Count=0;Count<NumberOfChars;Count++) { TempChar = (unsigned char) (&FlashPointer) /* Read content from this location*/ putchar(TempChar); // Send to RS232 FlashPointer++; } Please adive me , how to read data back from flash memory.... Thanks