12-08-2015, 14:09
Unfortunately those images also don't give me any clue.
Usually more simple approaches may give more quick conclusions. If you don't have shorter cables at hand, try with other set of cables, maybe there is a problem with one of the wires (sometimes happens with those dupond wires).
If you want to do some other tests with your oscilloscope, you can use channel A and B to check the same SPI signal (Arduino pin 13, 11, 10) and DC (Arduino pin 6) before and after the txb0104 IC. Both channels should display the same signal, just with smaller amplitude at the output of the txb01004 (display connector).
Usually more simple approaches may give more quick conclusions. If you don't have shorter cables at hand, try with other set of cables, maybe there is a problem with one of the wires (sometimes happens with those dupond wires).
If you want to do some other tests with your oscilloscope, you can use channel A and B to check the same SPI signal (Arduino pin 13, 11, 10) and DC (Arduino pin 6) before and after the txb0104 IC. Both channels should display the same signal, just with smaller amplitude at the output of the txb01004 (display connector).