Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)

User avatar
By pvvx
#8012
Fr4gg0r wrote: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 :roll: :o Espressif :evil: )
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.
User avatar
By alonewolfx2
#8013 which sdk you are using ?
pvvx wrote:
Fr4gg0r wrote: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 :roll: :o Espressif :evil: )
User avatar
By pvvx
#8014
alonewolfx2 wrote:which sdk you are using ?
0.9.4
Fr4gg0r wrote: 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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