Good day to all, please tell me what could be wrong. I bought a second-hand board, chipwhisperer lite xmega. Unfortunately, I didn’t have the opportunity to check the board at the seller’s house. I came home, installed everything according to the instructions, went into the notebooks and saw that my firmware was 5.0.0. I couldn’t update it, I just erased the firmware, shorted the champer and everything was fine, 6.5, something like that. I started testing the board for functionality. For some reason, nrst doesn’t work, but that’s not a fact. What I saw for sure was that up to 790 mV comes to the 4th pin of the large MOSFET during glitch, there are 9 kom on it, which is not enough for me to show. on the glitch output itself there was 2.4 V and I started to track with an oscilloscope what was happening, but in fact, during the glitch nothing happened except for the signal on pin 4 and jp8 during the glitch at a low level and on jp11 nothing happens on the central pin) the point is how can I check it correctly unfortunately I could not understand where the signal goes and how much resistance there should be on jp8 and jp11
here is my script with which I try to check their work. lp and hp. please help if I’m doing something wrong import chipwhisperer as cw
import time
scope = cw.scope()
scope.default_setup()
scope.clock.clkgen_freq = 100e6
scope.glitch.output = “enable_only”
scope.glitch.width = 10
scope.glitch.offset = 10
scope.glitch.repeat = 5000
scope.io.glitch_hp = False
scope.io.glitch_lp = False
scope.io.vglitch_reset()
print(“HP LP”)
while True:
scope.io.glitch_hp = True
scope.io.glitch_hp = False
scope.io.glitch_lp = True
scope.io.glitch_lp = False
scope.io.vglitch_reset()
print(" HP + LP")
time.sleep(0.5)