Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on September 29, 2016 at 15:13 I'm trying to receive serial data using USART1 and DMA in 3 different chunks. Between I'm setting the buffer size in the DMA (2 bytes, 1 byte, 10 bytes) using the function set_ dma _buffer_...
Posted on September 29, 2016 at 16:42I am using TIM4 of STM32F767 in Encoder mode. The period is set to 1000. The CNT value changes as follows: 0->1000->1->1000->0 and so on. On monitoring the DIR bit, I found that it keeps oscillating between 0 and...
Posted on September 16, 2016 at 23:29Hello all. Windows 10 can well recognize my STM32L1 device (custom PCB) as 'USB Serial device' but same isn't recognizing in Windows 7 (another PC). I've tried both VCP driver 1.3 and 1.4 in windows 7. Do I need ...
Posted on September 29, 2016 at 12:29Hi This is my first post on this forum, so please excuse me if I don't follow the correct procedure. I think there are a problem with the STM32F2 HAL firmware driver version 1.4.0. I am using IAR Embedded workben...
Posted on September 28, 2016 at 22:19Hello everybody, since two days I struggle with curious noises at Pin 6 (TQFP32) by STM32F051K8. In my application I try to start TIM2 with TIM14 in kaskade mode (I have slight changed the sample code). I attac...
Posted on September 29, 2016 at 01:50What would be the best way to reconfigure a pin from Input to Output and vice versa on the flight? The STM function HAL_GPIO_Init() is quite long so I would rather not use that function just to change a mode Inp...
Posted on September 27, 2016 at 22:26I've been looking in vain all day for specs on the analog input GPIO. Any help or referral to the proper docs would be much appreciated. It's referred to as 'high impedance', but 'high' is not quantified that I ...
Posted on September 20, 2016 at 10:35Hi, we have a problem in temperature AD acquisitions. The sensors are two Microchip MCP9700T-E/LT and are connected to ADC CH13 (pin &sharp18) end CH3 (pin &sharp26) through only a 22ohm resistance. The ADC is tr...
Posted on November 02, 2014 at 11:38Hello,I'm using an STM32F4 discovery board and I'm trying to control the DDS waveform generator chip AD9833 with it. I'm not very experienced with ARM. I have a AD9833 module like in the picture:http://www.ebay.co...
Posted on September 28, 2016 at 18:21Hi.I would like to periodically calculate CRC over code in Flash. Is it possible to see runtime the end address of the code located in flash? Most of the flash is free, so I will not like to calculate CRC over th...
