Debugging STM32G070/71/81 EXTI.EMR1 displays EXTI.IMR1 register contents.
Issue traced to offset value for EXTI.EMR1 register in SVD file should read 0x84, not 0x80 which is EXTI.IMR1
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Is there a difference in the port pin setup, between I2C and SMBUS-two-wire mode?
Is there a difference in the port pin setup, between I2C and SMBUS-two-wire mode?Say the STM32F469NIHx, if I set the mode to I@C, but the MCU drives a SMBUS device, is there any potential problem?Any help appreciated
using strtok function leads to clearing token before i can use it
I want to design a GPS car tracker that alarms when the speed reaches a certain value and I want to first test the code with the USB to TTL module which is connected to my stm32, and simulate sim808 answers. when I send the GPS information only the f...
Resolved! Emul usart AN4457 issue
Hello,Has anyone ever used the emulated usart provided by ST (AN4457) based on timer and DMA?I need it for transmit, not for reception.In my test, most of the time TX characters are corrupted, sometimes it works.I checked with scope and it appears th...
We have a PCB that is programmed via JTAG using the ST-Link/V2. Recently, I got some ST-Link Mini's, but I can't get them to talk to the same PCB the V2 does.
Looking at the pinouts for the 20-pin JTAG connector on the CBA being programmed, I see:1 - 3.3V2 - JTMS3 - GND4 - JTCK5 - GND6 - JTDO7 - n/c8 - JTDI9 - GND10 - /JTRST11-20 - Odd pins are GND, Even pins are n/cLooking at the STDC14 connector pinout f...
P-NUCLEO-LRWAN2 won't communicate with PC via USB
I've purchased an LRWAN2 kit for an upcoming ST workshop, and I wanted to make sure I can set the RF band, etc. when the time comes.I've followed the setup instructions in UM2587 rev 2, the "Getting Started" guide, and I get the following power and s...
stm32f412 i need much more clock speed!!
hello every one. im running something that needs high clock speed. actually i want to create picture with some moving LEDs. i have 75MHz on gpio but its not enough. i just know its possible. im using register codes. im using boolean array for image d...
STM32L0+: The RTC-Wake-Up_timer with __WFE()-sleep-entry delivers two wake ups instead of one wake up. And this consumes more power then needed.
__WFI(): (Wake up by Interrupt):leads to a one wake up as expected but swallows some interrupts if more interrupt sources are simultaneously produce interrupts. The understanding of this behavior costed me a lot of time. __WFE(): (Wake up by ...
Resolved! Can I use disabling of certain low-power timer (LPTIMx) by clearing the ENABLE bit in the LPTIM_CRx register safely if no interrupts from LPTIMx are used to wake up MCU from Stop mode?
Clarification: Can I be sure that the case in Errata sheet ES0491 "Device may remain stuck in LPTIM interrupt when entering Stop mode" never occurs for certain LPTIMx if no interrupts within it are used to wake up MCU from Stop mode and disabling of ...
STM32G4 flash write/erase
I'm quite confused. The RM0440 states: "Note that read-while-write capability (or RWW) is only supported when the dual-bank architecture is active. This enables programming or erasing one bank while executing code from the other bank." Okay, for me, ...
