ESP8266 Community Forum

- Fri Oct 16, 2015 1:17 pm #31549 Does someone have a link (preferably github) to the last published SDK source from Espressif? That should be SDK 0.96, I believe? My google-fu is failing me today...
(The main thing I'm after today is understanding what gpio_init actually does.)

- Sat Oct 17, 2015 10:38 am #31594

The main thing I'm after today is understanding what gpio_init actually does.

Even if you do find SDK source code it won't be helpful with respect to your objective because gpio_init() is in the ESP8266 ROM (address 0x40004c50). If you search for "esp8266 rom disassembly" you'll find some hits that may provide insight as to what gpio_init() is doing. In particular, see http://dflund.se/~kongo/esp8266.bin/iram0.txt.

Don Kinzer
ZBasic Microcontrollers
http://www.zbasic.net

- Sun Oct 18, 2015 2:35 am #31626

The main thing I'm after today is understanding what gpio_init actually does.

Even if you do find SDK source code it won't be helpful with respect to your objective because gpio_init() is in the ESP8266 ROM (address 0x40004c50). If you search for "esp8266 rom disassembly" you'll find some hits that may provide insight as to what gpio_init() is doing. In particular, see http://dflund.se/~kongo/esp8266.bin/iram0.txt.

Thanks for the info!