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I am evaluating the TI CSS/compiler against IAR. I am looking at the hello.c program on the EKS-LM4F232. My first edit was to change the baud rate to the virtual serial port. It did not work so I stepped into UARTStdioInitExpClk which passes the parameters in R0 and R1. The first function call inside of UARTStdioInitExpClk stomps on R0 and R1. I did change a compile option so that the arguements are passed differently, I am guessing on the stack. The first function call works out to be something in the M4 ROM.
My question is: Are there guidelines for what options to set when calling a ROMed routine? If so, where do I find them? I am guessing this is a nuance of StellarisWare, as the function call that stomps on R0 and R1 is a Stellaris API call.
John
