About slatybor

slatybor · 2015-12-31

Posted on December 31, 2014 at 17:20 Hi, I have a problem with proper main clock configuration in STM32F030K6T6. I've connected an external crystal 16 MHz with 2x15 pF caps, but the HSE is not starting. Variable HSEStatus remains 0, so the PL...

slatybor · 2014-09-04

Posted on September 04, 2014 at 23:04I'm writing an app, that most of its time will spend in STOP or STANDBY mode (battery powered microsystem). I'd like the internal RTC to wakeup my STM32 every 5 minutes, enter the ISR, do its tasks in ISR (ADC me...

slatybor · 2015-12-31

Posted on December 31, 2014 at 18:33It's a random crystal, I've soldered another 16 MHz and it doesn't work with my code too. Maybe it's the PCB layout problem? Or should I try to solder a parallel load resistor?I will try to see the MCO pin on the ...

slatybor · 2015-01-05

Posted on January 05, 2015 at 18:30I replaced the crystal with a new 8 MHz one (known parameters) and it worked. The MCO shows 48 MHz signal at PLL x6.Thanks for your advices, clive.

slatybor · 2015-01-01

Posted on January 01, 2015 at 12:35The marking on my crystal is ''M16.000E7D''. Unfortunately I couldn't find any datasheet for it. Maybe I'll try to get another crystal with known parameters.ST's code isn't that elegant in it's failure path - yeah,...

slatybor · 2014-09-05

Posted on September 05, 2014 at 11:47 EDIT: I have solved my problem, it was the missing semicolon at the end of flag polling while in an ISR. Now I have antoher problem - I wrote a delay function, msDelay. void msDelay(uint32_t dlyTi...

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STM32 - HSE OSC 16 MHz fails to start

STM32F030 RTC wakeup from STOP mode

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