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...


STM32F4 Discovery - F407 - AHB2 RNG, CRYP etc

Posted on June 23, 2015 at 03:58I am trying to see if I can get the RNG to work. When I poll, even though SR.CEIS and SR.SEIS are 0 as expected, I can never get SR.DRDY. I think I have initialized correctly. I am looking for a simple example projec...

ss9 by Associate
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Unable to write to specific addresses in flash

Posted on June 24, 2015 at 14:28I am working with the Discovery development board STM32F407 microcontroller and building using Eclipse/GNU. I trying to reprogram sector 0 (address range: 0x0800 0000 - 0x0800 3FFF; 16 Kbytes total) from within my app...


Posted on June 24, 2015 at 15:04To write multiple adress you sould use Auto Address Increment (AAI) Word-Program Sequence This is the code. /************************************************************************/ /* PROCEDURE: EBSY               ...

cmsis fft example problem in keil uvision 5.15

Posted on June 23, 2015 at 20:39HelloI tried to compile and run arm_fft_bin_example of the cmsis package but there is a problem.The problem is in the arm_bitreversal2.s file that can't be compiled by keil.Is there any workaround and solution?Thanks.

STM32L152 - can't woke from stop mode

Posted on June 23, 2015 at 08:09Hi everyone, I'm trying to write code that  : 1) Enter STOP mode every falling of specific  EXTi pin. 2) Wake up every rising of this pin.This is my code :void EnterStopMode(void) { /* // ASSERT(false); // Code is not...

moran by Associate II
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Change the Timer 2 to 32 bits

Posted on June 24, 2015 at 06:02Hello,I am using the timer 2 as a decoder of my motor wheel.Problem is, the counting is going to fast and 16bits is not enough (4000 counting per revolution). I need more bits but the timer 2 has only 16bits, do you h... by Associate II
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STM32F4xx Rebooting to bootloader when setup to boot to App.

Posted on June 22, 2015 at 23:36I have a F4 chip that calls ,    The function initiates a system reset request to reset the MCU.__STATIC_INLINE void NVIC_SystemReset(void)  {    __DSB();                                                     /* Ensure ...

garry_st by Associate
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STM32F0 HAL UART DMA RX works only once

Posted on May 17, 2015 at 09:44Hi.I am trying to write a simple program for DMA rx transfers from UART interface. I am using the HAL drivers and HAL_DMA_Recieve.The problem I have found is very strange. DMA RX transfer from UART works only once. The...