i have a question about calling a assembly function from a C function. The ADSP21061 is in use.
I want to use the alternate register instead of saving all registers on to the stack. So the programm sequence would be:
bit set mode1 SRD1L|SRD1H|SRRFL|SRRFH;
/* Beginnung of the Code*/
/* End of the Code*/
bit clr mode1 SRD1L|SRD1H|SRRFL|SRRFH;
....and now we´re back in C
In the ASM-Function (Call_ASM-Function()) two interrupts will be enabled, one of them asume to save the ASTAT-register.
So the interrupt occurs only when i´m in "assembly-mode", so they should work also on the alternate regsiter (this should be not problem because the register used in ISR are NOT used in ASM-Function).
In the Simulation everything works fine, but not on the hardware. I do not know if the source of error is the interrupt-handling, but i want to make sure that this is not the problem.
The error occurs NOT frequently, so sometimes it works fine sometimes not. Remember that i have no debug-possibility on the hardware.