how debugger like gdb works to setup a breakpoint through a jtag interface on an embedded board?

i want to know if sbdy has an idea about how once i type a command in GDB from my host to set a breakpoint on an embedded remote processor, this command will arrive to this processor through jtag and...
how debugger like gdb works to setup a breakpoint through a jtag interface on an embedded board?

i want to know if sbdy has an idea about how once i type a command in GDB from my host to set a breakpoint on an embedded remote processor, this command will arrive to this processor through jtag and...
Program works correctly in debugger only when i have a breakpoint set?!?!?!

Im using the RTX51 Tiny RTOS Ok, here is my problem. Ive been pulling my fair out trying to figure this out. I have a program that recieves 2 bytes from the uart, and sends a 5 byte word back as a responce...
Program works correctly in debugger only when i have a breakpoint set?!?!?!

Im using the RTX51 Tiny RTOS Ok, here is my problem. Ive been pulling my fair out trying to figure this out. I have a program that recieves 2 bytes from the uart, and sends a 5 byte word back as a responce...
FPB BreakPoint(without Debugger)

Hello, My App (cortex m4) needs to set up a breakpoint directly from code, in order to jump to an interrupt when an instruction from a certain address is fetched. This without using a debugger. I searched...