ESP8266 Community Forum

- Fri Jan 06, 2017 9:49 am #60546 hi folks, got a new esp8266 module.
i am new to this stuff but i think i got everything cabled right according to this subreddit wiki image.

i get this output when booting normally:

Code: Select allets Jan 8 2013,rst cause:2, boot mode:(3,4)
load 0x40100000, len 1396, room 16 tail 4
chksum 0x89
load 0x3ffe8000, len 776, room 4 tail 4 chksum 0xe8
load 0x3ffe8308, len 540, room 4 tail 8 chksum 0xc0
csum 0xc0

2nd boot version : 1.4(b1)
SPI Speed : 40MHz
SPI Mode : DIO
SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user1 @ 1000
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and this output when booting in flash mode:

Code: Select allepc1=0x40100002, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000168, depc=0x00000000
Fatal exception (29): epc1=0x40100002, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000168, depc=0x00000000
Fatal exception (29): epc1=0x40100002, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000168, depc=0x00000000
Fatal exception (29): epc1=0x40100002, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000168, depc=0x00000000
Fatal exception (29): epc1=0x40100002, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000168, depc=0x00000000
Fatal exception (29): epc1=0x40100002, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000168, depc=0x00000000

sometimes its fatal exception (0) as well.
its just spamming all the way.
when trying to flash using the espflashdownloadtool i dont get sync and cant see the mac address.

my setup:

lavolta bps 305 power supply (3.3v)
espressif esp8266
miniusb uart converter from conrad

any ideas? thanks!