Forum Posts
STM32 interrupt service routine and volatile variables
Hello,I'm using an stm32f411 which is a cortex M4 device.In my application I have an interrupt from an IMU in a 400hz frq. Every time the interrupt is called I want to read data from the sensor and process it using a filter function.I have a few ques...
For ADC input, my input signal is sinusoidal with no DC, that is, it has positive and negative value. Is it possible to convert a negative value without problem?
In the document, the input level is limited by Vref+ and Vref-. But Vref- seems to be tied to GND in general, which implies a negative value cannot be converted without problem.Can Vref- be connected external -5V or -3.3 V for handling a negative val...
STM32 SPI slave mode doesn't transmit properly
I am using an STM32G030C8T6 as an SPI (Slave device) which receives characters from a Raspberry pi (Master device), receiving works perfectly! no problems there, however when i try to send data from STM32 to Pi, it seems that the STM32 gets stuck for...
STM32L151CBT6 as SPI Slave: HAL_SPI_TransmitReceive sends Bytes of an 64 Array twice or more often but in correct order while HAL_SPI_TransmitReceive_DMA works just fine.
In my setup the STM32L151CBT6 is configured as slave of a PLD Master. To test the correct functionality I set up an 64 Byte Array ([0x00, 0x01, 0x02, ..., 0x64) which is transmitted by the slave during communication. The PLD "asks" for the readback p...
Ghosting mark at back of the part STM32F407ZGT6
Please advise whether see before the below picture regrading the ghosting mark on the back of the part ? It is due to MFG fabrication matter which cause this issue.
"Listening" the data received by RX pin on STM32L073RZ
Dear ST Community, I am new to STM32 and I am currently trying to develop a remote control with SMT32L073RZ and Thyone I (Nordic-Based) RF Proprietary module which acts as transreceiver. the communication is through UART.Setup1:Transmitter: Thyone I ...
I have a single hex file for F & G series microcontroller. What is the best way to detect the MCU and load the appropriate hex file section from the single hex file
I will be able to detect if its an F series or G using DEV_ID register
Resolved! Why ST keep implementing RTC as calendar instead of RTC binary counter?
I am not an ST expert nor RTC expert, whatever that means. but I have seen several implementations made by other companies and I have to say RTC as counter (the HW that provide interface to a posix compatible timestamp, usually 32 bit seconds + 15 fr...
Resolved! HAL_SPI_ENABLE causes crash/reset on STM32G030J6
I am trying to communicate with an SD card using SPI.I have found a library, that can work on an STM32g031f6, but if I try to do the same on an STM32g030j6, it crashes/resets when it calls the function "__HAL_SPI_ENABLE" in "stm32g0xx_hal_spi.c".I ha...
