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

SPI Configuration Issue : NO DATA ON MOSI

Posted on June 04, 2013 at 16:41 Hi everyone and thanks in advance for your help, I'm going a little crazy here. I am trying to configure an SPI2 line, in master mode, to send data from my STM32F407VG to an LCD screen. However, even if I ...

Encoder Trigger output at every transition

Posted on June 03, 2013 at 17:01I have a timer configured to interface an encoder.Basically what I want to do is to create a trigger event at every encoder pulse, which resets another free running timer's counter value to 0.What I have now, is that ...

rigomate2 by Associate III
  • 723 Views
  • 3 replies
  • 0 kudos

STM32F4Discovery - external VDD supply

Posted on June 04, 2013 at 13:52Hi All,Is it possible to use STM32f4Discovery without powering it’s ST Link section and associated LEDs.  External 5V (at P2 pin 3,4)  will power up ST Link section and associated LEDs.  Is it safe to remove JP1 and a...

prabhu by Associate II
  • 622 Views
  • 3 replies
  • 0 kudos

Which pin is for external clock source of SysTick?

Posted on June 04, 2013 at 08:53Which pin is for external clock source of SysTick? (STM32F407VG.) I could not find in documentation. And also, is it possible to internally connect I2S PLL or MCLK to SysTick or any other timer that have interrupts? T...

apbqdo by Associate II
  • 959 Views
  • 4 replies
  • 0 kudos

usart strange behaviour, need restart

Posted on June 04, 2013 at 15:10Hello I have a strange behaviour with usart (1 and 4) on STM32F217.I use it as output log. When I build and debug, nothing leaves the STM. After a ''debug'' reset in atollic(a restart)  it works fine.I tried these two...

pcu by Associate II
  • 410 Views
  • 2 replies
  • 0 kudos

STM32F10x_StdPeriph_Driver

Posted on June 04, 2013 at 09:35Hi All , I am starting a new design and want to have the latest & updated Lib files. Where can I find an updated  StdPeriph Lib for the STM3210X ? Thanks,

avi2 by Associate II
  • 933 Views
  • 2 replies
  • 0 kudos

breakpoint in backup registers

Posted on June 03, 2013 at 18:56While tracking down a pointer problem I tried to use GDB to break on any access to the first location in the STM32F407 backup register area (0x40002850), using the ''rwatch 0x40002850'' command to GDB.  Bteween two ot...

missing ADCPRE configuration in systeminit() ?

Posted on June 03, 2013 at 16:57Hello everybody, I set up the (new) 3.5.0 lib in our project and configured the clock (via &sharpdefine SYSCLK_FREQ_36MHz  36000000) but the ADCPRE register did not get configured correctly. I'm missing the part where...

konrad by Associate
  • 545 Views
  • 2 replies
  • 0 kudos

Stm32f407 FatFs Long File Name

Posted on June 04, 2013 at 00:34Hi! I'm using popular fatfs library to handle my SD card. Now I have to use longer file name, so Ive decided to use LFN. With standard file name this code works fine:char lolek[]=''data1234.kml''; fresult = f_mount( ...

zbiku11 by Associate II
  • 492 Views
  • 1 replies
  • 0 kudos