I'm writing an app on the Renesas RX platform and the GNU RX compiler using the embOS object files.

I'm calling OS_Delay(100), but the function never returns. I've stepped through the code and it appears I'm in a four-instruction infinite loop inside _OS_DelayUntil:

FFF87D40 EDAB09 MOV.L 24H[R10],R11
FFF87D43 437B SUB R7,R11
FFF87D45 610B CMP #0H,R11
FFF87D47 29F9 BLT.B 0FFF87D40H

(For reference, _OS_DelayUntil is at 0xFFF87CDC in this build.)

Now, I generated my project from scratch rather than using one of the sample projects as a starting point, so my assumption is that I missed some piece of initialization code somewhere. I am calling OS_InitHW() in Rtosinit_GNURX.c.

Can anyone help me figure out what I may be overlooking?

Thanks,

-Matthew

I've tested and this happens using the LDT library, the LD library, and the R library.

It doesn't appear that the systick timer interrupt is firing. I set a breakpoint on OS_ISR_TICK() in Rtosinit_GNURX.c and the breakpoint is never hit. (I tried both a hardware and a software breakpoint.)

While I'm sure I could debug this with enough effort, the truth is that I'm new to the RX platform. Do you have any tips on chasing this down?

Thanks!

-Matthew