>thank you for your help.
>The hardware engineer tells me :
>on the DPS's output, there is a pull-up on each EMUx. Then the signals are
EM0 and EMU1 are bi-directional signals as far as CCS software is concerned. I
looked quickly this morning at the DSK C6711 schematic. TI has used a
SNCBT3257PW part, but I'm not sure if this is a buffer or a bi-directional bus
>Here the results of our tests :
>We tested the signals (on our system and on the TI DSK-board C6711) with a
>The both TMS are identical. Our clock TCK is OK.
>The only differences between the two boards are on the data (TDI and TDO).
And the buffering issue; maybe you can ask the Texas Inst. Hotline
() if CCS C6000 needs to see the EMUn signals as bi-directional.
I know that for CCS C5000 this is definitely the case, having had to debug some
hardware with this problem before.
DSP sw/hw engineer
Signalogic >-----Message d'origine-----
>De : Jeff Brower [mailto:]
>Envoye : jeudi 31 mai 2001 16:03
>A : Jeanmar ROUXEL
>Objet : Re: [c6x] Problem with CCS and JTAG >Jeanmarc-
>>we are developing an electronic card with a C6711 DSP. We have a problem to
>>use Code Composer Studio with our system. However, we have implementing a
>>JTAG connector on it (the same as on the DSK C6711) but Code Composer
>>doesn't want to communicate with it. Does somebody know which protocol is
>>using Code Composer Studio to start the connection with the DSP by the JTAG
> -C6711 reset line is not held low; JTAG cannot override
> reset line if your board has a grip on it
> -EMU0 and EMU1 lines are pulled-up and not buffered
>DSP sw/hw engineer