I'm observing CLK stay low during the chip probe. I was hoping to see a square wave.
Makes sense to look at the source as see where CLK is used, I think. On Tue, Apr 5, 2022, 6:40 AM Undiscussed Horrific Abuse, One Victim of Many <[email protected]> wrote: > My arduino flasher, although I appreciate it, is running into the same > issue as the teensy flasher. It says there is no chip when one is there. > > I've reseated connections that look loose. I've replugged the usb cable. > I've reseated the flash chip and verified it's not backward. I've tried a > 10uF capacitor instead of a 100nF. I've put tape under the arduino in case > it's shorting on something below it. Same behavior. > > I've also labeled the lines! And plugged in my oscilloscope and wired its > probe ground to the board ground. > > Plan is to plot the clk line just to get comfortably with measuring a > logic line. >
