STM32 MCUs Products

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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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STM32F103C8T6 run after core reset only

Posted on January 04, 2015 at 17:09hi, STM32F103C8T6 Minimum Board after system reset NRST or power reset not run(blink LED). After core reset in ST-Link utility window MCU runs to next hardware button reset. Can any help me please #reset-stm32

HardFault_Handler debugging

Posted on January 04, 2015 at 09:22Dear friends.My platform is STM32F429Discovery.I encountered whit Hard Fault error. I used the code of Joseph Yiu to track the place where error occurs. It is in the portasm_cm4.s (FreeRTOS). ldr r0, [r1]r1=0x03FF...

baev_al by Associate II
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Program always jump to/boot from 0x20000000?

Posted on January 03, 2015 at 13:50Hello all, I just began working on an old project which had some problems that had not been solved, of which I did manage to pinpoint (in relative terms) the source. Developing platform: Keil uv4 Chip:             ...

DAC Internal Reference Settling Time

Posted on January 04, 2015 at 13:09We are building a digital LED buck converter with slope compensation as described AN4885 High brightness LED dimming using the STM32F334 Discovery kit.The discovery kit application uses the DAC to generate a 250 kH...

DAC as internal reference only

Posted on December 28, 2014 at 22:41Does anyone know if it's possible to enable the DAC without having it drive the corresponding output pin (PA4 on STM32F301 in my case)? I want to use it as a reference for the internal comparator, but unfortunatel...

sd card init problem

Posted on January 02, 2015 at 14:28My STM32F429 board uses Kingston 4GB uSDHC card. CubeF4v1.3.0 HAL init fails in SD_PowerON() function in stm32f4xx_hal_sd.c /* Send CMD55 */   sdio_cmdinitstructure.Argument         = 0;   sdio_cmdinitstructure.Cmd...

I2C register read problem on STM32F2xx

Posted on January 04, 2015 at 00:29Hi guys,I'm trying to bring up I2C on the STM32F2xx MCU.  I've got an audio codec hooked up as i2c slave. I'm running into an issue with I2C register reads. The first i2c transaction where the register read address...

ruben2 by Associate
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ADC3 channel 7 in discoveryf4 board

Posted on January 03, 2015 at 13:43hi i want to test an example inhttp://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CCMQFjAB&url=http://tech.munts.com/MCU/Frameworks/ARM/stm32f4/libs/STM32F4xx_DSP_StdPeriph_Lib_V1.1.0/Project/STM32...

display driver

Posted on January 03, 2016 at 16:18I have the nucleo board and an add-on board with a 2x12 oled character display. Writing to the display is not straight forward because D7..D0 lines are connected to pins on different  ports (PA,PB,PC).   Is there ...