Re: [OpenOCD-user] support for sa1100

[Diego R. <di...@ti...>]

On 03/21/13 16:29, Freddie Chopin wrote:
> Do you have SRST signal or only TRST?

Only TRST. The jtag dongle have this pin wired:

// Output pins (LPT driving)
// LPT D0 Pin 2 and TCK J10 Pin 4
// LPT D1 Pin 3 and TDI J10 Pin 11
// LPT D2 Pin 4 and TMS J10 Pin 9

// Input pin (SA-1110 board drives)
// LPT Busy Pin 11 and TDO J10 Pin 13
// (Steve) nTRST I tied on the PCB to nRESET (pin 2 of the MAX811)


I get this information from JFlash-linux program. It used to flash
bootloader on the board (and it works fine). So it should be trst only.

On sa1100 reference manual it says:

If the boundary-scan interface is to be used, then nTRST must be
driven low, and then high again. If the boundary-scan interface is not
to be used, then the nTRST pin may be tied permanently low.

So I've tried with:

> reset_config trst_only

but still reset doesn't work.

Regards,
  Diego Roversi.