ESP8266 Community Forum

- Sat Jan 07, 2017 1:51 pm #60600 ESP8266-01 all wired up .

Can flash it! ( ExpressIf's Flash tool).

It reports Detected info as:

flash vendor:
E0h : N/A
flash devID:
4014h
QUAD;8Mbit
crystal:
26 Mhz


Which my understanding says this is a 1M version of the ESP8266.

Photo shows my settings... What am I doing wrong.

After it flashes, no new access point appears.

When I connect via putty, I see fatal exceptions from boot loader spewing forth, then a reboot for more of the same....

HELP!!!???

Attachments

- Sat Jan 07, 2017 4:03 pm #60615 Not necessary an ESP_LINK flashing adresses problem :
Your adresses seem OK (https://github.com/jeelabs/esp-link/blob/master/FLASHING.md#initial-serial-flashing

/!\ Flashing needs less current than WiFi running. (WiFi transmitting needs some 300mA pulses)
How do you power your ESP01 after flashing it ?
Maybe your ESP resets when trying to set AP 'on' if your power can't deliver current needs by WiFi radio

- Sat Jan 07, 2017 5:37 pm #60626

Not necessary an ESP_LINK flashing adresses problem :
Your adresses seem OK (https://github.com/jeelabs/esp-link/blob/master/FLASHING.md#initial-serial-flashing

/!\ Flashing needs less current than WiFi running. (WiFi transmitting needs some 300mA pulses)
How do you power your ESP01 after flashing it ?
Maybe your ESP resets when trying to set AP 'on' if your power can't deliver current needs by WiFi radio

now it just resets. itself
here is the serial dump:

ets Jan 8 2013,rst cause:4, boot mode:(3,1)

wdt reset
load 0x40100000, len 1856, room 16
tail 0
chksum 0x63
load 0x3ffe8000, len 776, room 8
tail 0
chksum 0x02
load 0x3ffe8310, len 552, room 8
tail 0
chksum 0x79
csum 0x79

2nd boot version : 1.5
SPI Speed : 40MHz
SPI Mode : QIO
SPI Flash Size & Map: 8Mbit(512KB+512KB)
jump to run user1 @ 1000

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126>
126> ** esp-link v2.2.3 - 2016-06-21 21:58:48 - 1bcdc62
127> Flash config restore *FAILED*
127> CONN led=0
130> Wifi init, mode=AP
131> Wifi uses DHCP, hostname=esp-link
135> "ip": "0.0.0.0"
137> "netmask": "0.0.0.0"
140> "gateway": "0.0.0.0"
143> "hostname": "<null>"
145> sleep enable,type: 2
148> Httpd init, conn=0x3fff2a6c
151> Serbridge pins: reset=12 isp=13 swap=0
164> Reset cause: 2=exception
164> exccause=0 epc1=0x4020137e epc2=0x0 epc3=0x0 excvaddr=0x11 depc=0x0
165> Flash map 1MB:512/512, manuf 0xE0 chip 0x4014
170> ** esp-link v2.2.3 - 2016-06-21 21:58:48 - 1bcdc62: ready, heap=25112
177> initializing user application
180> Waiting for work to do...
183> mode : softAP(62:01:94:06:34:b2)
186> add if1
188> dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
196> bcn 100