Re: JTAG: First of 4 Spartan-3E always UNKNOWN

Antti wrote:
> impact select chain debug
issue TLR

create a string of 128 '11111111111111111.. with some text editor,
paste it into edit box for dr shift
shift it out
you should see JTAG ID of all 4 devices in chain scaned back in

if there is 32 bit 1'1 at one end of the return string your chain is
broken

Here is the output (Cut and paste from the impact log) for this operation done 4 times. You can see how the output is slightly different each time, but the changes are only within the first 32 bits (i.e. the first device)

// *** BATCH CMD : bsdebug -scandr 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111

TDO Capture Data: 11110000011000000010000010010011000000011100001000100000100100110000000111000010001000001001001100000001110000100010000010010011

// *** BATCH CMD : bsdebug -scandr 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111

TDO Capture Data: 11110000000110001001000001000011000000011100001000100000100100110000000111000010001000001001001100000001110000100010000010010011

// *** BATCH CMD : bsdebug -scandr 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111

TDO Capture Data: 11100000001110000100010000100001000000011100001000100000100100110000000111000010001000001001001100000001110000100010000010010011

// *** BATCH CMD : bsdebug -scandr 11111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111

TDO Capture Data: 11000000011100001000100001001011000000011100001000100000100100110000000111000010001000001001001100000001110000100010000010010011
.

Relevant Pages

  • Re: JTAG: First of 4 Spartan-3E always UNKNOWN
    ...  > impact select chain debug ... paste it into edit box for dr shift ... TDO Capture Data: ... well i have seen wrong jtag id been returned, ...
    (comp.arch.fpga)
  • Re: Shifting problems
    ... More specifically, when shifting the ... SRAM MRX 8-Speed Twist Shift ... Shimano 8 Speed Chain - IG ... Once the derailleur limits are set, ensure the gear wire moves freely and that there are no kinks, frays or other damage to the wire or casing. ...
    (rec.bicycles.tech)
  • Re: The Alt.Guitar Composition Contest
    ... Although with 3 notes per string you have a broader range and possibly the ability to play faster, you will innevitably play with a "tighter" more focused sound when your hand doesnt have to strain and move to hi all the notes you want. ... What's cool to me, is all the additional notes, colors, points of emphasis, rhythms and arpeggios you can find not only w/in this simple, tried and true 'scaffold', but w/in the entire 'chain' the modes comprise as they overlay the pentatonic chain. ... The same applies to modes of the melodic minor scale, ...
    (alt.guitar)
  • Re: Does Campy Veloce suck?
    ... It has a thumb lever to change gears. ... you use the thumb shift to a lower chain ring. ... larger-toothed gear, or a smaller-toothed gear with each shift. ...
    (rec.bicycles.tech)
  • Re: Drivetrain failures at Tour of California
    ... until he crashed about 150 meters from the finish when his chain came ... off during a shift, sending him over the bars and into a barrier. ... turning up Lombard Street from Stockton, came to a complete stop, and ... then force him to go back down the hill to get a running start at ...
    (rec.bicycles.tech)