STM32 MCUs Products
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Strange Characters Received with UART
Hello,I use the STM32F767 microprocessor on my PCB design. After sending back the converted data to a PC with UART, I got strange characters (in Picture1). Normally, I am supposed to get the numbers like in Picture2. The characters look like Chinese ...
Resolved! What are the configurations needed to get the UART_receive _DMA in keil?
I am using the stm32h745-Discovery board.I am getting the data using the interrupt method and polling method but am not able to get the Data using the uart_receive_DMA. …What are the further configurations needed for the DMA and What else to do get ...
Force a timer to interrupt as soon as possible
Hello,I have a timer TIM2 interrupting every 2ms (that's working).When I receive SPI data from SPI3_IRQHandler, I want to launch the interrupt of this timer TIM2_IRQHandler as soon as possible (eg in the next 10us).Then, the timer will continue to in...
RM0377 MIFRST - what is E2 and what is IDDQ mode?
MIFEN explanation would use some rewording, too...JW
What is exactly a peripheral reset on STM32H7
Hello,It's not clear for me what a peripheral reset (registers RCC_xxxRSTR) is doing. I didn't find the details in the reference manual. I assume it resets the internal state machine of the periph, its FIFOs, but for example does it also reset its co...
How to program the Option Bytes on a G0?
I'm trying to program the option bytes on an STM32G0B1 but it keeps timing out at the end of the program sequence and never actually succeeds, no matter how many times I try.I enable the Flash peripheralI (successfully) unlock the flashI (successfull...
Resolved! How can I use timer (TIM22) in STM32L031K6 to get interrupt on OC on channel 1 and generate PWM signal on channel 2?
In my application I want to use timer to turn on LED for around 300ms and simultaneously generate PWM signal of freq 2.7kHz (for buzzer) on PA10 pin. Is there any way I can achieve this?(NOTE: I have already used TIM2 and TIM21 timers. TIM21 is also ...
Resolved! Why HAL_I2C_Mem_Read returns only 0?
Hi,I am using stm32f1 and HUT21D sensor (Temperature and humidity sensor). The sensor use i2c for communication. I am using IAR and cubeMX.For cube: I used default setting for i2c.For IAR: I shared the main.c below.Can anyone help on why only get 0.#...
