Hi,
I made some changes in my memory layout and my DSP/BIOS application did not work anymore. I traced it down to this lines:
bool ImageBuffer::initLCDController()
{
CSL_Status status;
CSL_LcdcConfigLidd configLIDD;
CSL_LcdcLiddTiming timingCs0LIDD;
CSL_LcdcHwSetup lcdcLiddSetup;
status = 4;
configLIDD.clkDiv = LCD_CLOCK_DIVIDER;
configLIDD.fdoneIntEn = CSL_LCDC_LIDD_FDONE_DISABLE;
configLIDD.dmaCs0Cs1 = CSL_LCDC_LIDD_CS0;
configLIDD.dmaEnable = CSL_LCDC_LIDD_DMA_DISABLE;
configLIDD.polControl = 0x0000;
configLIDD.modeSel = CSL_LCDC_LIDD_ASYNC_MPU80;
The "status=4" line is just for debugging the compiler generates this: (at least that is what I see in CCS)
initLCDController:
0x040F92: 4ed5 AADD #-43,SP
0x040F94: eb0085 MOV XAR0,dbl(@#00h)
0x040F97: e60404 MOV #4,@#02h
0x040F9A: e60601 MOV #1,@#03h
0x040F9D: e60800 MOV #0,@#04h
0x040FA0: e60a00 MOV #0,@#05h
0x040FA3: e60c00 MOV #0,@#06h
0x040FA6: e60e00 MOV #0,@#07h
0x040FA9: e61003 MOV #3,@#08h
This cant be right or? I am not so familiar with the C5000 Assmbly but AFAIK this just writes the entries to RAM Adresses 0x2-0x8. And it does not consider the stack pointer. Furthermore my CCS Debugger says that the status variable and the configLIDD Structure are located at 0x444 and above but defently not at 0x2 to 0x8. Furthermore my Stack seems to get corrupted by that lines at least I see "unresolved smybol" in the stack view in CCS after these lines are executed.
Is this a compiler BUG?
I am using a TMS320VC5505 on a EVM5505 from spectrum digital
