Hi, I would like to use the IAP feature for firmware upgrade in future for bug fixs. But how do I organise my code such that I have a portion "bootloader" that is fixed, and the rest of the code are upgradeable ?? I have tried using the linker option to set my bootloader function at address 0x1000, and the rest of my functions at 0x2000 onwards. But I check the .hex file, what happen is when I changed something in the main body function, the 0x1000 address code also changed. How should I go about it in implementing a "bootloader" section and upgradeable portion of code??? Thank You !! Jerry Yeo
hello every body in this thread, I have gone through the whole thread and am once again forwarding a related query I have sucessfully tried to activate the iap facility and have created a pc side application and a bootloader located at f7fdh in the IC now this bootloader in synchronism with pc side application and downloads a file (its an application program compiled in kiel)in the flash at 50h location as specified by me I am givinging a call to the startup location+50 of the app prog(checked in .m51) from my bootloader Now if the app prog loaded is a simple prog like send some charc to serial by polling it is working however when i include a timer interrupt it creates a different situation n does not execute, though i have tried to compile the prog with interrupt vector at 00 and code at 5000 loction and i am writing the desired jumps (02004d) at the 0b location using the iap routine (its timer0 interrupt) the code does not execute. could anyone guide with the same.
does the program work if you load ir with FlashMagic ? that would be the first question Erik
yes the prog works if loaded through flash magic Ansh
n yes also as i m locating the prog at 50 i m writing the jump adress at the vector table locations
hey everybody, I have done it? its working Ansh ambedkar