I am programming AT89C2051 in uVision2. I am using programmer PG302. When I flash controller with hex file created using Assembler, everything is OK. But when I flash controller with hex file created using C51, I get message "Device not equal to file" (in PG302). I don't know what to do, please help if you know how. (My C51 code is OK, error is probably in created hex file, because it is about 3 times bigger than file created using Assembler (for the same function)).
"This may be because the program is too big for the device." Or, in the case of the Eval tools, because the code is located outside the address range of the on-chip flash...