ESP8266 Community Forum

- Thu Jan 22, 2015 3:58 pm #7977 Maybe you have to disable wifi to prevent the module from crashing, and more importantly, get reasonable values. Or maybe it works better with the SDK released today.
Need to wait for pvvxs code.

- Fri Jan 23, 2015 7:24 am #8012

readvdd33() (web_int_callbacks.c)
It crashes my esp under certain circumstances.
The function does not exist in any header file, but it works.

readvdd33() in libphy.a: phy_chip_v6_ana.o.
The scale factor has a large spread (>40% different modules ESP8266)
ESP-01 readvdd33()/1132 = xV
ESP-12 readvdd33()/765 = xV
-> ESP-12 modules often overheat...
readvdd33 used set WiFi tx power level... (40% 1W-1.4W power dissipation of the chip Espressif )
Where else is the temperature of the chip ...

Last edited by pvvx on Fri Jan 23, 2015 7:33 am, edited 1 time in total.

- Fri Jan 23, 2015 7:33 am #8013 which sdk you are using ?

readvdd33() (web_int_callbacks.c)
It crashes my esp under certain circumstances.
The function does not exist in any header file, but it works.

readvdd33() in libphy.a: phy_chip_v6_ana.o.
The scale factor has a large spread (>40% different modules ESP8266)
ESP-01 readvdd33()/1132 = xV
ESP-12 readvdd33()/765 = xV
-> ESP-12 modules often overheat...
readvdd33 used set WiFi tx power level... (40% 1W-1.4W power dissipation of the chip Espressif )

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- Fri Jan 23, 2015 7:35 am #8014

which sdk you are using ?

0.9.4

Or maybe it works better with the SDK released today.

Yes! better with the SDK released today:
disasm:
C:\Espressif\xtensa-lx106-elf\bin\xtensa-lx106-elf-objdump -S %1.a >%1.asm
extract lib to obj:
C:\Espressif\xtensa-lx106-elf\bin\xtensa-lx106-elf-ar x libphy.a
Disasm ROM: http://df.lth.se/~kongo/esp8266.bin

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