Posted on May 17, 2011 at 14:13The supervisor circuit is a good solution. I also tried to detect the RCC_FLAG_LSERDY at startup (when SET already: Ok) but this method doesn't work. I'll stick to the solution with ADC conversion (described earlier) b...
Posted on May 17, 2011 at 14:13What voltage at the Tamper Pin trigger an action (clear BKP register) ? Ok, the BKP register are cleared when the microcontroller ''Vcc = 0V'' and the tamper pin is configured. My last problem is the voltage when this ...
Posted on May 17, 2011 at 14:13Here's my unterstanding of what todo (that's a good hint with the tamper pin): - Configure TAMPER Pin for transition 1->0 (Reference Manual STM32F107 v11 PDF S. 74: Note: Tamper detection is still active when VDD ...
Posted on May 17, 2011 at 14:13It looks like it's not possible with this HW configuration and the STM32 has no useable internal function to detect the low Vbat voltage. But it's still interesting at what voltage will the Tamper Event will happen. Pe...
