STM32 MCUs Products

Ask questions, find answers, and share insights on STM32 products and their technical features.

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

HardFault with NOCP flag while FPU is enabled

Posted on April 18, 2015 at 23:12I can't figure out the cause of the Hard Fault: Chip: STM32F405RG Instruction (gcc generated program): vldr s0, [r4] r4 contains an address in the main RAM and aligned (0x2....4) Stepping over it results in a jump to...

i23 by Associate II
  • 830 Views
  • 1 replies
  • 0 kudos

conversion of decimal/hexadecimal in ascii characters

Posted on April 18, 2015 at 23:58Hi,I am writing data on my sd card through spi in stm32f429zi controller using library of fatFs by chan. But after writing the data when i check the file it shows strange characters instead of the data entered. Later...

aatif by Associate II
  • 926 Views
  • 1 replies
  • 0 kudos

RTC WakeUp Timer interrupt STM32L100

Posted on April 15, 2015 at 20:34 Hi, I have a problem with interrupt of WakeUp Timer. Never set flag for WakeUp interrupt. WakeUp timer is on EXTI EXTI of interrupt is set for rising edge and and line Can you help me? Thanks a lo...

chiptron by Associate II
  • 813 Views
  • 3 replies
  • 0 kudos

STM32F030C6 access GPIOD fail, why?

Posted on April 15, 2015 at 16:35During init phase of my program I init all GPIO (A, B, C, D & F) register of STM32F030C6  with some default value. And during access to GPIOD on 0x48000C00 I get exception. If I disable GPIOD everything work as expec...

yuriy by Associate II
  • 1337 Views
  • 6 replies
  • 0 kudos

NUCLEO-F411RE: Buying from South Africa

Posted on April 17, 2015 at 08:22Hello everyone,I am from South Africa and would like to get my feet wet (so to speak) with the STM32 MCUs. I want to buy the NUCLEO-F411RE board online directly from ST. I was wonder if there are any fellow South Afr...

STM32F429I LTDC SDRAM and screen jitter/flicker

Posted on April 17, 2015 at 15:34 Hi folks, We are experiencing screen flicker (jitter?) with a setup consisting of an STM32F429I with external SDRAM frame buffer (part similar or identical to what is on the STM32F429I-DISCO board) and an ext...

hbarta2 by Associate III
  • 1022 Views
  • 2 replies
  • 0 kudos

M0 GPIO with DMA max speed ?

Posted on April 16, 2015 at 14:46Hi, I'm using an stm32f072 part, trying to toggle 8 GPIO pins with DMA from memory. The DMA is plugged to a Timer (2) update event which has 48MHz using HSI48 (no crystal for now). I have two issues currently : - HS...

How do I perform this function shorter ?

Posted on April 17, 2015 at 12:43 unsigned long a;     void assign(unsigned int a1,unsigned int a2)        {                    if (a2==1)     a =1;          if (a2==2)     a =2;          if (a2==4)     a =4;          if (a2==8)     a =8;          ...

kemal by Associate II
  • 662 Views
  • 3 replies
  • 0 kudos

STM32F207, Execute while programming flash?

Posted on October 03, 2013 at 20:42Hi everyone, sorry if this has been answered before and my google-fu is weak.I'm experimenting with an STM32F207VG, and after reading the flash manual and data sheet, am uncertain if it's ''safe'' to execute code f...

charles1 by Associate
  • 1656 Views
  • 4 replies
  • 0 kudos

STM32F103 read analog signal

Posted on April 14, 2015 at 09:55HelloI have a nucleo STM32F103, I put a  external clock of 25MHz.How can i read a analog signal conected in PB8?Someone can help me??Best regards #analog-input #nucleo-f103rb

lemac by Associate III
  • 2952 Views
  • 7 replies
  • 1 kudos