Hello, I have two issues in my mind which need a solution sooner or later. I am trying to activate the software protection on the lpc2138, i.e. programming the flash 0x1fc with 0x87654321. I wonder what alternative approaches there might be? Also, what is your preferred way to embed the serial numbers and/or calibration data into the flash area, after testing the board with the production sw? Reprogramming whole sw takes alot time, compared to the size of the changes. Thanks Cem
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Cem Eryasar wrote: > I have two issues in my mind which need a solution sooner or later. > > I am trying to activate the software protection on the lpc2138, i.e. > programming the flash 0x1fc with 0x87654321. I wonder what alternative > approaches there might be? Use .org <address> followed by .word <"magic value"> in you startup-Assembler file. And make sure the bootloader is accessable (BSL and UART0-Pins) ;-) > Also, what is your preferred way to embed the serial numbers and/or > calibration data into the flash area, after testing the board with the > production sw? Reprogramming whole sw takes alot time, compared to the > size of the changes. You can reserve a memory-sector for such data and program the device-specific values received for example by UART using IAR-functions to this page. Or use you programming-hardware (or maybe even the bootloader) to write some binary data you create for each device to a fixed address in flash memory. Martin Thomas