When I am using the monitor in boostrap mode I cannot sucessfully download code. I keep getting the error *** MONITOR ERROR 3 : CANNTOT WRITE TO ADDRESS E7AAAA. I am using an in house designed board with 64K RAM on CS2 at address 40000H. I have set the followinging in config.inc %DEFINE (DATA_START) (40000H) %DEFINE (CODE_START) (42000H) I have also Added the following reserve lines 8H-0BH, 0ACH-0AFH Please help. I am at my wits end
We have just had the same problem, but have tracked it down. We had defined a C-accessible variable in the mm310.a66 startup file, using the DW statement. DW creates an initialised variable - the monitor initialises it not the application. However, the monitor and application have different memory maps. The monitor was reading the location of the variable from the uploaded .h86 file, but whereas the monitor considered that location to be in external flash (and couldn't write there, hence the error), our application configures that to be in external SRAM. The solution was to use the DS statement instead of DW - this is an uninitialised variable so the monitor never tries to write to the external flash.