ESP8266 Developer Zone The Official ESP8266 Forum 2017-12-21T17:03:02+08:00 https://bbs.espressif.com:443/feed.php?f=7&t=8763 2017-12-21T17:03:02+08:00 2017-12-21T17:03:02+08:00 https://bbs.espressif.com:443/viewtopic.php?t=8763&p=18769#p18769 <![CDATA[Re: can you help me? esp8266 rtos sdk ota flash crc failed]]> You can just try to open the url for downloading on the browser on your PC to see if it can download the user.bin.
Or capture the TCP packets to check what is sent from the server.

Statistics: Posted by Her Mary — Thu Dec 21, 2017 5:03 pm

]]> 2017-12-20T14:02:42+08:00 2017-12-20T14:02:42+08:00 https://bbs.espressif.com:443/viewtopic.php?t=8763&p=18755#p18755 <![CDATA[Re: can you help me? esp8266 rtos sdk ota flash crc failed]]>
Her Majesty wrote:
Is the bin file on your OTA server waiting for downloading, a real user2.bin？
Or you just put some other bin on the server for testing?



I put 8266user1.bin and 8266user2.bin on my own OTA server,
I rename them to 8266user1.bin and 8266user2.bin,
flash_crc = 965494996 is equal with the 8266user2.bin‘s compile result，
but img_crc is not right.
my ota server crc is D4 48 8C 39,,just == 0x39 8C 48 D4 == 965494996
so I think img_crc is somewhere wrong,but I cannot resolve it,
please grant some help to me ?

Statistics: Posted by syemour — Wed Dec 20, 2017 2:02 pm

]]> 2017-12-19T18:54:45+08:00 2017-12-19T18:54:45+08:00 https://bbs.espressif.com:443/viewtopic.php?t=8763&p=18732#p18732 <![CDATA[Re: can you help me? esp8266 rtos sdk ota flash crc failed]]> Or you just put some other bin on the server for testing?

Statistics: Posted by Her Mary — Tue Dec 19, 2017 6:54 pm

]]> 2017-12-19T09:37:49+08:00 2017-12-19T09:37:49+08:00 https://bbs.espressif.com:443/viewtopic.php?t=8763&p=18726#p18726 <![CDATA[Re: can you help me? esp8266 rtos sdk ota flash crc failed]]> Statistics: Posted by syemour — Tue Dec 19, 2017 9:37 am

]]> 2017-12-17T19:13:22+08:00 2017-12-17T19:13:22+08:00 https://bbs.espressif.com:443/viewtopic.php?t=8763&p=18715#p18715 <![CDATA[can you help me? esp8266 rtos sdk ota flash crc failed]]>
SDK version:1.5.0-dev(a8c4880)
fpm open,type:2 0
force slp enable,type: 2
fpm close 1
mode : sta(5c:cf:7f:0c:3d:5c)
add if0
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 2
pm open phy_2,type:2 0 0
cnt

connected with espressif, channel 11
dhcp client start...
ip:192.168.2.248,mask:255.255.255.0,gw:192.168.2.1
connected


Connect ok!
spi_size_map= 4
upgrade user_bin2_start= 129
upgrade->fw_bin_sec_num= 123
upgrade->fw_bin_addr= 528384
upgrade->fw_bin_sec_earse= 129
Request send success
pre erase flash!

pusrdata HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
ETag: W/"297348-1513251713781"
Last-Modified: Thu, 14 Dec 2017 11:41:53 GMT
Content-Type: application/octet-stream
Content-Length: 297348
Date: Sun, 17 Dec 2017 10:31:30 GMT

?
userbin sumlength:297348
totallength= 1215
flash_erased= 0
flash erase over
Connect ok!
spi_size_map= 4
upgrade user_bin2_start= 129
upgrade->fw_bin_sec_num= 123
upgrade->fw_bin_addr= 528384
upgrade->fw_bin_sec_earse= 129
Request send success

pusrdata HTTP/1.1 200 OK
Server: Apache-Coyote/1.1
ETag: W/"297348-1513251713781"
Last-Modified: Thu, 14 Dec 2017 11:41:53 GMT
Content-Type: application/octet-stream
Content-Length: 297348
Date: Sun, 17 Dec 2017 10:31:35 GMT

?
userbin sumlength:297348
totallength= 1215
flash_erased= 1
upgrade_task 98 word left
>>>recv 2675B, 294673B left
upgrade_task 98 word left
>>>recv 4135B, 293213B left
upgrade_task 98 word left
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upgrade_task 90 word left
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upgrade_task 90 word left
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upgrade_task 90 word left
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upgrade_task 90 word left
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upgrade_task 90 word left
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upgrade_task 90 word left
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upgrade_task 90 word left
>>>recv 295075B, 2273B left
upgrade_task 90 word left
>>>recv 296535B, 813B left
upgrade_task 90 word left
>>>recv 297348B, 0B left
upgrade data load finish.
img_crc = 3329472300
flash_crc = 965494996
upgrade crc check failed !

Exit upgrade task.

Statistics: Posted by syemour — Sun Dec 17, 2017 7:13 pm

]]>