Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on June 10, 2017 at 10:39I would like to enable the internal RTC of STM32F103 MCU. RTC works fine with HSE clock source. But when I select LSE as clock source, RTC stops working. It is necessary to use LSE and VBAT because the real time shoul...
Posted on February 27, 2017 at 23:01Hey guys.I'm trying to setup Custom HID. I'd like to use an output- and input Buffer.I have managed to setup the descriptors. I think i have done that right: Windows is correct enumerating my device.On the other s...
Posted on June 15, 2017 at 18:22I'm study cortex-m4 for semihost and use stm32f429-discovery board. I have a trouble with that semihost can not work when board is standalone(without in debug mode), So, I hope to use judge debug status before printf(...
Posted on August 29, 2016 at 16:09 Dear forum, i get this error after i tried to download the code to this board: http://artofcircuits.com/wp-content/uploads/2015/07/STM32F103C8T6-Development-Board-1.jpg I use a ST-Link V2 with ...
Posted on June 15, 2017 at 18:47HelloWhat is the analog input bandwidth of STM32F303? How does it change with sampling rate or resolution?
Posted on June 15, 2017 at 08:18Hi everybody!Recently I found a strange phenomenon that there was a peak on the rising edge when I using the TIM1's 4 chanels to be PWM output mode.And the maxium peak voltage can reach to 5.6V measured by the oscillo...
Posted on January 16, 2017 at 23:02If i start an UART receive with an interrupt looking for the next inbound byte/char;HAL_UART_Receive_IT(&huart1, &UART1_Data, 1);how can i cancel the receive before receiving the next byte/char?
Posted on June 14, 2017 at 15:14I'm reading a serial ADC from an interruption (24 bits)I need to pass its read value to the main()I have defined in /* USER CODE BEGIN PV */ a volatile variable uint32_t xxxxxThe xxxxx variable is right inside the in...
Posted on June 15, 2017 at 08:40Hello.I'm working on a new board with STM32F407 MCU.Currently, there's an issue with Ethernet.After board reset, Ethernet communication is working well.But after some time (minutes or hours), the Ethernet seems to be ...
Posted on March 21, 2017 at 15:31We are using HAL CAN drivers for STM32 F7 (stm32f7xx_hal_can.c).During CAN tx/rx stress tests we experienced an issue resulting in CAN receive hang.The issue is due to a race condition on hcan->State variable between...
