- Tue Jun 23, 2015 11:02 am
#21389
Hi,
Just trying to get my head around the different AT firmware types/versions.
There are a number of Google Drive links floating around, but i'd prefer to stick to an official source.
I found: https://github.com/espressif/esp8266_at, which seems to match approx with the dates for: http://bbs.espressif.com/viewtopic.php?f=5&t=64 - so are those the same thing?
When I flash the one from Github, AT+GMR gives: 00200.9.4
Is that the latest release of the EspressIf AT firmware, then?
When I power on the ESP-12's I bought, I get:
[Vendor:www.ai-tinker.com Version:0.9.2.4]
AT+GMR gives:
0018000902-AI03
What's the difference between the AI Tinker firmware and the ExpressIf firmware (and who are AI Tinker?)
Why all the different formats of version number?
Also on a related note, how come the ExpressIf firmware comes in 4x files which you have to flash at different locations:
Is there any documentation anywhere which explains what each of those is for and why those locations?
How come many of the firmwares on the Google Drive links have only a single file to flash at 0x000? - is there a tool to combine the separate files into a single firmware image?
Thanks!
Ian
Just trying to get my head around the different AT firmware types/versions.
There are a number of Google Drive links floating around, but i'd prefer to stick to an official source.
I found: https://github.com/espressif/esp8266_at, which seems to match approx with the dates for: http://bbs.espressif.com/viewtopic.php?f=5&t=64 - so are those the same thing?
When I flash the one from Github, AT+GMR gives: 00200.9.4
Is that the latest release of the EspressIf AT firmware, then?
When I power on the ESP-12's I bought, I get:
[Vendor:www.ai-tinker.com Version:0.9.2.4]
AT+GMR gives:
0018000902-AI03
What's the difference between the AI Tinker firmware and the ExpressIf firmware (and who are AI Tinker?)
Why all the different formats of version number?
Also on a related note, how come the ExpressIf firmware comes in 4x files which you have to flash at different locations:
Code: Select all
boot_v1.1.bin---------------->0x00000
user1.bin-------------------->0x01000
esp_init_data_default.bin---->0x7C000
blank.bin-------------------->0x7E000
Is there any documentation anywhere which explains what each of those is for and why those locations?
How come many of the firmwares on the Google Drive links have only a single file to flash at 0x000? - is there a tool to combine the separate files into a single firmware image?
Thanks!
Ian
