Fehler #327
Von Maximilian Seesslen vor etwa 2 Jahren aktualisiert
As recognized in #326, the device draws way too much current.
With disconnected debug adapter the PCB still draws 3,5mA in standby mode.
Flash and temperature sensor have been removed without big change.
300/3,5/24=3,5
*Adapter*
3 x Pinsocket; Device, Multimeter, Power in
1 x mechanical switch (MM Shortcut, open)
1 x mechanical switch, (5V, 3V, Shortcut, direct)
STM32L151C6U6A "hier":http://hase.seesslen.net/redmine/projects/hw-temprec/wiki/STM32#Warehouse. "DS:"Link":https://www.mouser.de/datasheet/2/389/dm00078689-1797705.pdf;
185 μA/MHz; max 32Mhz; 5,9mA
*Direct measuring without STN01*
* Solder a wire to the 3V0 VDD line; see which current gets drawn.
** Same issue
*Software*
Thu Pullup/pull-down seems to be kept in standby.
Ok, but it would draw 60µA.
With disconnected debug adapter the PCB still draws 3,5mA in standby mode.
Flash and temperature sensor have been removed without big change.
300/3,5/24=3,5
*Adapter*
3 x Pinsocket; Device, Multimeter, Power in
1 x mechanical switch (MM Shortcut, open)
1 x mechanical switch, (5V, 3V, Shortcut, direct)
STM32L151C6U6A "hier":http://hase.seesslen.net/redmine/projects/hw-temprec/wiki/STM32#Warehouse. "DS:"Link":https://www.mouser.de/datasheet/2/389/dm00078689-1797705.pdf;
185 μA/MHz; max 32Mhz; 5,9mA
*Direct measuring without STN01*
* Solder a wire to the 3V0 VDD line; see which current gets drawn.
** Same issue
*Software*
Thu Pullup/pull-down seems to be kept in standby.
Ok, but it would draw 60µA.