Initial Crash on first UART data being sent with screen, but only on first flash.

AgentSmithers
Posts: 175
Joined: Sat Apr 01, 2017 1:21 am
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Initial Crash on first UART data being sent with screen, but only on first flash.

Postby AgentSmithers » Thu May 07, 2020 7:45 am

Hi Everyone!
Anyone else have this issue after flashing and sending one char of UART data causing the issue below, After I flash my chip and it crashes, after I reset it manually it works fine, no issues at all, but the moment I flash it for the first time it crashes on data input. Anyone know the cause?

Fatal exception 0(IllegalInstructionCause):
epc1=0x40100014, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x0�000000
ets Jan 8 2013,rst cause:2, boot mode:(1,7)


ets Jan 8 2013,rst cause:4, boot mode:(1,7)

wdt reset

st0ff3r
Posts: 11
Joined: Sun Sep 13, 2015 11:52 pm

Re: Initial Crash on first UART data being sent with screen, but only on first flash.

Postby st0ff3r » Sun May 24, 2020 3:05 am

I also get this Fatal exception 0(IllegalInstructionCause):
epc1=0x40100014, epc2=0x00000000, epc3=0x00000000, excvaddr=0x4010b128, depc=0x00000000<FE>

I think its related to my use of GPIO interrupt. Do you use any interrupts? Not sure if it only happens first time after flash. That could indicate that the flash process is done for wrong flash size?

What about comparing the output of reading the hole flash before and after?

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