stm32l452, uart, when TXE = 1 ?
stm32l452, uart. CR1_TE is = 1, now I set CR1_TXEIE = 1. Is ISR-TXE = 1 (and INT generated) now too? Or really only if 'data is transferred to the shift register' ?
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Resolved! STM32L4R9 GPIO13, 14, 15 EXTI interrupt problem
I think I've caused some problem in the way I'm coding this interrupt. For a second I thought it was a pipeline re-entry problem like Clive-Two-Zero described in a different thread, but adding a volatile variable and incrementing it, didn't seem to w...
SPI1 + DMA Interrupt setup for RX only from a peripheral sensor (Nucleo-F767ZI)
Hello Everyone, So, I am trying to configure the SPI1 to work with DMA so I can fill in a buffer from my sensor for every occurring interrupt, so when the buffer is full and I can send it to my client server. I used CubeMX to configure SPI1 and DMA2 ...
How to use STM32F100 to measure a sinwave's frequency by input cature mode of TIM3 ?
How to use STM32F100 to measure a sinwave's frequency by input cature mode of TIM3 ? I would like to measure sinewaves of three frequency, 39Khz�?40Khz and 41Khz.Voltage level (0V-3V)The 39khz period is 25.64us.The 40khz period is 25us.The 41khz pe...
Resolved! 32F769IDISCOVERY WiFi
I'm having a lot of trouble finding documentation. This board sold by ST exposes a connector that is intended to house an ESP8266 WiFi device. But the ST documentation says nothing about how that connector is wired on the board. I assume it's tied to...
Multiplexing with STM32F303
Hello ! I really need your help , im working on a project and its a game of luck , random numbers will appear on 4 x 7 Segments , so i must multiplex , i understood the principe but i can't reach some good results , i don't know why ...only the commo...
Problem in reading ADC values using interrupts on STM32F3 Nucleo Board
Hello everyone,I am working on following application.I need to measure average of samples read by ADC1 (Differential mode). It starts reading values when interrupt from pin PC13 (Rising edge) is detected. It stops reading values and display the resul...
I2C Slave at STM32F401RE
Can anyone give me an example for an I2C-Slave at STM32F401RE?The delivered example I didnt understand...I can send Text from Mater to Slave Board, but then i dont know how to go further...I'm sitting hours at this...thanks,Christoph
External loader : SectorErase function is missing
Hello there!I'm trying to build an external loader for STM32H7, so I can use a NOR FLASH in XiP mode, but following the AN and the examples in CubeProgrammer folder, I'm getting the message:STM32CubeProgrammer API v1.4.0External loader : SectorErase ...
USART with 7 data bits
Hi all!I am using STM32F427 with HAL. I have to communicate with other devices using communication protocol over RS-232 interface (USART). The protocol is using 7 data bits, odd parity. I am struggling to make it work. There is a setting for WordLeng...
