STM32 MCUs Products
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DFSD with two PDM mics using a single input
Hi,I followed the example for DFSDM found in DM00380469_ENV1.pdf and setup the channels as specified (channel 0/1 -> input from ch1 and internal clock). Cube MX also creates 2 pins , CLK and DATAIN1.STM32F413 MCUIt seems that I cant get any data comi...
Cannot use CAN on alternate pins
Part is STM32L4Q5CGIf configured to use PA11 and PA12 on AF 9 works as described in programming reference. When changing pins used to PB8 and PB9 CAN cannot be used and never leaves reset. On my custom board I have PA11 and PA12 in use by USB so I ca...
Resolved! An interesting feature of Nucleo. Two identical microcontrollers behave differently.
Hello everyone. Today I ran into an interesting and at the same time unpleasant problem. The same program is loaded into two identical microcontrollers, but the result of the work is completely different. The screenshot shows the data from the UART r...
Resolved! What is the meaning of multiplexed channels of ADC's in STM32L552xx or STM32L562xx family micro controllers
I stuck with ADC implementation understanding. Please help me to get this.In STM32L5xx reference manual (RM0438), ADC main features are given as follows (Page no. 685 in RM0438 Rev7)" Up to 2 ADCs which can operate in dual mode:ADC1 is connected to 1...
I2C Timing Calculation for STM32H7
I want to know how to calculate the Timing register content on my own for the I2C clock speed, I know that it can be generated by the STMCubeMX.
STM32F105 unsigned division wrong result
Hello community,Processor : STM32F105 (Cortex M3)Compiler : GCC 6.3.1I would like to execute the following assembly instruction :udiv R3,R2,R3where :R2 = 64 000 000R3 = 1Instead of getting R3 = 64 000 000, I get R3 = 2047I tried to execute strictly t...
DFSDM DMA: Which CPAR register?
Hi - I'm having trouble getting DFSDM input to work with DMA - I'm unable to set the `DMAEN` bit in the DFSDM register.One troubleshooting angle: What register pointer to you pass to the DMA's CPAR? I assume `DFSDM_ FLTxRDATAR` for regular (non-injec...
STM32F105 Multichannel DMA ADC Read Buffer Offset Error
MCU: STM32F105RCTxFirmware Version: STM32Cube FW_F1 V1.8.0I have DMA setup to read 8 channels of the ADC into a fixed buffer and I'm having an issue where after an extended period of time (usually hours) the ADC channels are read into the wrong buffe...
