About On Chip Debugging

[chandu.kurapati]

Hi,

Can any one explain about the what is the on chip debugging and different methods in it, really i didn't get any detailed info about it.

please can one explain it or share any PDF for me.

Thanks & Regards,
Chandu.Kurapati.

 

[Munirali28]

Debugging is the process of getting rid of error in a program.on chip debugging is the one that you do after u have put the program inside the chip.

 

[betwixt]

Some microcontrollers have a debugging interface. Some pins are dedicated or programmable to be used to carry information on the contents of internal registers to the outside world. They usually have a facility to halt the processor and single step each instruction. With suitable debugging hardware connected to the 'chip' it becomes possible to see how it interacts with it's surrounding circuits by advancing the program counter one step at a time and seeing what changes happen in the internal registers.

Brian.

 

[chandu.kurapati]

Hi betwixt,

About on chip debugging is ok, but in the on chip debugging different methods are there for ex: JTAG, SWD, ETM etc.....can you please explain about them or share any PDF related to that debugging types.


Thanks & Regards,
Chandu.Kurapati.

 

[betwixt]

I'm afraid all my data sheets and documents are locked away at the moment so I can't access them. You should find information if you search for JTAG (Joint Test Action Group) or the other terms. Microchip also have information in their data library about the debugging interfaceon their processors.

Brian.

 

[dick_freebird]

Complex analog designs can benefit during development
and production from having test muxes built in as well.
I know of no standards, but you can "roll your own" with
a little bit of insight to where you can tap, that won't
ruin operation.