v4, selftest – CLK FAIL (only that one fails) October 18, 2020, 06:26:17 am Hi!While I was programming avr, something goes wrong. I've no idea what, but my Bus Pirate v4 doesn't flash avr anymore.Result of selftest:Code: [Select]HiZ>~Disconnect any devicesConnect (ADC to +3.3V)Space to continueCtrlAUX OKMODE LED OKPULLUP H OKPULLUP L OKVREG OKEEPROMSCL OKSDA OKWP OKREAD&WRITE OKADC and supplyVusb(4.82) OK5V(4.80) OK5V VPU(4.58) OKADC(3.29) OK3.3V(3.29) OK3.3V VPU(3.09) OKBus highMOSI OKCLK FAILMISO OKCS OKBus Hi-Z 0MOSI OKCLK OKMISO OKCS OKBus Hi-Z 1MOSI OKCLK FAILMISO OKCS OKMODE, VREG, and USB LEDs should be on!Any key to exitFound 2 errors.HiZ>I've jumper connecting 3.3V with ADC.After long sniffing, I've decided to upgrade firmware. Now I've:Code: [Select]HiZ>iBus Pirate v4Community Firmware v7.0 - goo.gl/gCzQnW DEVID:0x1019 REVID:0x0004 (24FJ256GB106 UNK)http://dangerousprototypes.comHiZ>As you may have guessed, it didn't help.What can I do?I've oscilloscope, so I can measure it right.At 3WIRE mode commands:Code: [Select]3WIRE>\CLOCK, 03WIRE>/CLOCK, 13WIRE>are just changing voltage at CLK pin from 0V to 150mV.(To be precise: from 20mVB with 46mV noise peaks to 144mV with 166mV noise peaks. But that noise looks normal, like consequence of poor (standard) USB power supply)Aaaaand after minute of testing – it stops.Heisenbug, I was just turning CLOCK high and low while looking at oscilloscope. It die in front of my eyes?Ok, enough crying Can you help me, please? What should I measure/do?