IRET returns to nowhere from wakeup timer ISR as soon as programmable alarm interrupt is active!Here is the STVD screen where programmable alarm and wakeup timer interrupts are enabled and wakeup timer ISR is just about to end. In the memory window a...
I can't see any other way to check whether CR95HF is in READY state rather then waking it up manually! Sounds nonsense to me, so I assume I'm missing something very important about it! Please, advise on any reasonable solution. P.S. I'm using SPI.
If you look into the AN4327 CR95HF transceiver antenna tuning circuit with EMI filter you see:I assume this means 22 pF capacity in parallel with 80 kOhm resistance. But when you open the recommended Excel sheet you see:Until this moment this was sup...
AN4488 goes like:Why 15 pF is a maximum value? It came out of nowhere. At the same time AN2867:Emmmm...So I am confused. What should I do now? Never use 12.5 pF crystal or use it and do the calculations in accordance with AN2867 to get accurate value...
I am trying to catch levels out of threshold using ADC and analog watchdog on NUCLEO-L552ZE-Q. Unfortunately analog watchdog fires interrupt even when value is within the guarded range. I came across this example: https://community.st.com/s/article/h...
You were right! The problem was the stack overflow. I used to call a procedure from ISR and seems like next IRQ fired before previous ISR over, so stack was overflowed.Thanks a lot for giving a hint!
Hello!I use segments. The RAM is divided in two segments ram0 and ram1. All the variables are in ram0 segment which is in 00-FF address range. The total value of all my variables is 33 bytes, so there is enough space.#define RAM0 1
#define ram0_segme...
