FAQs

STM32 MCUs Products

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

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

Sign In to Post

datasheet not user friendly

Posted on April 03, 2015 at 15:09hello, i was happy to know ST was offering very broad controller series line at very cost. i was very disappointed and felt the heat when i started using its datasheets. though it gives bulk of information it's certa...

kumaresh by • Associate II
  • 1288 Views
  • 4 replies
  • 0 kudos

what is mean of Dhrystone ?

Posted on April 03, 2015 at 19:23hi everyone what is mean of 1.25 DMIPS(Dhrystone 2.1) is it DMIPS equal to Dhrystone milion instruction per secod? if yes please explain for me how execute 1.25DMIPS with arm core and pipeline i read a manual of ar...

os1361 by • Associate II
  • 1186 Views
  • 3 replies
  • 0 kudos

Backup sram. Does the RTC have to also running

Posted on April 04, 2015 at 05:07Hi I want to save a Flag during a reboot on STM32F429IAt Main()I have  uint32_t bt; HAL_Init();  /* Configure the system clock to 180 Mhz */   SystemClock_Config();    __PWR_CLK_ENABLE();   HAL_PWR_EnableBkUpAccess...

brett23 by • Associate II
  • 488 Views
  • 1 replies
  • 0 kudos

Trouble printing float number normally

Posted on April 03, 2015 at 21:15Attached is my modification of tiny_printf.c where I simply added float printing function (case 'f'). By default, the decimal points is 6. Below are floats I tried to print: Float                                    ...

chenping by • Associate II
  • 1210 Views
  • 3 replies
  • 0 kudos

Trouble with UART Interrupt with IMU

Posted on April 02, 2015 at 19:59After extracting IMU from the demonstration project (merely leave out USB setting), now I face another issue is that whenever I tried to activate interrupt setting for UARTs, it hangs. (The circular LED_toggle indica...

chenping by • Associate II
  • 1188 Views
  • 5 replies
  • 0 kudos

stm32f407 TIM1 and TIM8 sync

Posted on March 14, 2015 at 15:18 Hello I'm trying to synchronize TIM1 and TIM8 (slaves) via TIM2 (master).. I checked the manual and says it can be done (p. 554/1710).. Although TIM2 works fine, TIM1 and TIM8 are off.. Please check my co...

zarkscon by • Associate II
  • 3768 Views
  • 24 replies
  • 0 kudos

STM32F103 SmartCard Question

Posted on April 03, 2015 at 01:34I am trying to create a smartcard driver on the STM32F103.  I am using USART3, and the ST8024CTR interface chip.My problem is that I can read the cards (with a hack of a workaround), but cannot write to them.  What i...

jwormsley by • Associate III
  • 925 Views
  • 2 replies
  • 0 kudos

Scatter Brain

Posted on March 31, 2015 at 14:32I have a bootloader which needs to read an 8 byte char array from the application area to identify it's version information. So bootloader is located at 0x08000000Application firmware at :   0x08020000the char array ...

joe by • Associate III
  • 917 Views
  • 4 replies
  • 0 kudos
Top