10:11 <alexd> Hey everyone!

10:11 <alexd> Anyone know if it is possible to run code (C, not Tcl) on target from inside `-event reset-init` ? The code is already on target (internal flash) and I want to run it to initialize external SDRAM.

10:11 <alexd> I currently have Tcl code that reads/writes to registers to initialize SDRAM. But this is basically a copy of my C driver. I'm looking for a way to run the C code instead. Then I won't need to keep the C/Tcl in sync and I can support new boards more easily.

10:11 <alexd> Any advice is much appreciated. (Even to tell me that this is a bad idea.)

10:16 <alexd> I first thought to do this through GDB. But I don't really know how I can run GDB commands from inside Tcl script.

10:27 <karlp> have you tried just using "reg" to reset the SP, and then "resume [address]" ?

10:28 <karlp> you can probably just risk it and use resume directly, but that wll assume that SP is valid.

10:28 <karlp> you'll have to set a breakpoint if you want to catch it finishing or anything though

10:30 <alexd> Will the Tcl script continue after my function returns/hits breakpoint?

10:30 <alexd> I will definitely try this. Thx

10:32 <PaulFertser> alexd: you can add sw breakpoint function in your C code and use "resume XXX; wait_halt" in Tcl.

10:32 <alexd> Ok, cool. That sounds like a plan

12:19 <alexd> @karlp @PaulFertser I got this working now. `resume xxx; wait_halt` in Tcl and my C code has `asm("bkpt 255");` to "return". In linker script I always place the C function at the same address (after interrupt table). So I can hardcode the address in Tcl and this will keep working. Very very nice

12:36 <PaulFertser> alexd: cool!