Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on August 31, 2016 at 16:03Hi, I have a custom board with Ethernet using the STM32F4 and the KSZ8051RNL Phy from Micrel working in RMII mode. The firmware is based on the LWIP TCP server example from the std. periphery library using a raw com...
Posted on September 07, 2016 at 09:41Hi, I'm trying to deinit and then init the I2C driver during runtime of the STM32F411. I2C1 generally works when initializing the drivers once, but when I deinit and then init them, I get a start-bit timeout - th...
Posted on September 06, 2016 at 03:15Hi Everyone.I'm having trouble starting the external 32khz RTC source as fitted to the Nucleo. Are there any issues with this clock on the Nucleo, has anyone got it to work?ThanksMartin
Posted on September 04, 2016 at 10:02Hi,I meet a problem with my project in which a STM32F373 MCU is used to collect singnal in single-ended mode.I short the pin with GND to test the board,the ADC values I get seems to fluctuate like saw-tooth.The g...
Posted on September 06, 2016 at 20:40There are examples counting clock pulses with the DWT_CYCCNT, but it will overflow in time. Counting pulses is easy if there is no overflow, but with overflow I am sure there nice way of doing it. I could do some...
Posted on September 06, 2016 at 21:37Is it possible to read the device type in user code? I would like to write some code that uses the crypto acceleration hardware if it is running on an STM32F415 and falls back to software implementations if it i...
Posted on September 06, 2016 at 18:47 This is more of a C problem than Arm problem, here too are some people who know their C. I am reading the value of DWT_CYCCNT; When print it via Uart, after a while it becomes negative. The most ...
Posted on September 04, 2016 at 10:31I'm trying output a sine wave on STM32F429I, the HCLK is 168MHz. I want my sine wave start just as I detect a rising edge on one GPIO. So, I use software trigger, call HAL_DAC_Start() in the ISR of a rising edge ...
Posted on September 03, 2016 at 19:15HIhow can i play audio files with WM8994 and DISCOVER 746 board?thank you
Posted on September 05, 2016 at 17:54I am messing around with the SMT32F429 discovery EVK. I am trying to play with booting into the internal bootloader and may have blown it away. Using IAR workbench I look at the device's memory location 0x1fff000...
