Apologies if this is obvious but I am a newbie to ARM and am struggling.
If I load STM32F429-Discovery EmWin example it compiles Ok.
Change the device from STM32F429ZIT to STM32F429IGT (on my board) I get errors:
compiling RTX_Conf_CM.c... compiling SPI_STM32F4xx.c... C:\Keil_v5\ARM\PACK\Keil\STM32F4xx_DFP\2.2.0\CMSIS\Driver\SPI_STM32F4xx.c(600): warning: #177-D: function "SPIX_GetVersion" was declared but never referenced static ARM_DRIVER_VERSION SPIX_GetVersion (void) { C:\Keil_v5\ARM\PACK\Keil\STM32F4xx_DFP\2.2.0\CMSIS\Driver\SPI_STM32F4xx.c(610): warning: #177-D: function "SPIX_GetCapabilities" was declared but never referenced static ARM_SPI_CAPABILITIES SPIX_GetCapabilities (void) { C:\Keil_v5\ARM\PACK\Keil\STM32F4xx_DFP\2.2.0\CMSIS\Driver\SPI_STM32F4xx.c(622): warning: #177-D: function "SPI_Initialize" was declared but never referenced
etc.
If I now change back to original device I still get these errors. Why?
I'm not sure that changing the Device on an existing Projects (entirely) works?
I'd suspect that it's left (some of) the old device defines in there...?
Warnings != Errors
Check for command line defines passed to the compiler. Be sure that you rebuilt the original project completely and that really did get no warnings.
Thank you both for your quick response
Sorry, you are quite right! There were 11 warnings and 1 error. However I don't understand why changing the device (which is just a different pin out) and then changing it back to the original again gives these errors/warnings.
I have done a 'compile all target files' in all 3 cases.
Having laid out a PCB with a lot of the components similar to the discovery board (slight changes in pin AFs) I thought I could just change the device/ pins to try a demo program out.
(one version I have tried, compiles some of the time but often crashes the MDK program before downloading.
I guess, from what you are saying, this is not the case and I really need to start afresh.