We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
I'm new to Keil and was using the evaluation version to write small programs. Now, suddenly my startup files no longer build and I get the following message. I rebuilt everything but still no joy. Any idea of how I can recover?
assembling startup_stm32f407xx.s... RTE\Device\STM32F407VGTx\startup_stm32f407xx.s(191): error: A1163E: Unknown opcode R0, , expecting opcode or Macro compiling system_stm32f4xx.c... ".\Objects\GroupAssignment3.axf" - 1 Error(s), 0 Warning(s). Target not created.
Thanks all. It was the missing Tab. I don’t how the file was changed, but now I know where to look.