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System Clock, Interrupts and USART data loss

Posted on October 11, 2012 at 20:40Hello, I want to share my story about the use of the microprocessor and the problems arising from it. My system consists of a microprocessor ARM Cortex M3 STM32F103RC6 and various peripherals. I use this system to...

kchuva by • Associate II
  • 2282 Views
  • 9 replies
  • 0 kudos

STM32L151 Flash write speed

Posted on October 12, 2012 at 15:35Hello all, I have a question about in application programming speeds with the L151. I have a working bootloader for both the L151 and the F207 micros. They are nearly 100% identical take a master/slave setup. For i...

stbbrad3 by • Associate II
  • 1921 Views
  • 2 replies
  • 0 kudos

Missing Cortex-M3 instruction timing

Posted on October 11, 2012 at 10:00ST Cortex-M3 programming manual nicely describes all instruction, how they work and what they do but there is no info how many clock cycles it takes to execute given instruction.Fortunately I found ARM Cortex-M3 ma...

zzdz2 by • Associate II
  • 1184 Views
  • 5 replies
  • 0 kudos

compensating networks

Posted on October 11, 2012 at 22:08Is there a library that implements compensation networks such as PID for STM32F4xx? #compensating-networks-pid

betuel by • Associate II
  • 991 Views
  • 3 replies
  • 0 kudos

STM32F4-Discovery - USART problem

Posted on October 09, 2012 at 23:15Hi, I'm trying to connect together two USARTs. First is set as a transmitter and second as a receiver. I connect together two pins on the board PA9 - USART1_TX and PC7 USART6_RX. I have problem with receving data b...

bkdi by • Associate II
  • 1326 Views
  • 7 replies
  • 0 kudos

TIM1 to TIM3 PWM

Posted on October 11, 2012 at 09:48Good morning, i'm working with a stm32F0-Discovery board (cortex M0), i need to change the PWM pin from PA8 (using TIM1) to PC8 (using TIM3), but there is a problem because it works wrong.In the following codes i h...

pietro2 by • Associate II
  • 745 Views
  • 2 replies
  • 0 kudos

SPI and Ethernet Controller 28j60

Posted on December 02, 2011 at 06:03Hi everyone,I'm starting with the stm32f100rb and trying to set up the communication with 28j60(SPI). As far as know the 28j60 only support the spi mode 0 and  run at frequencies of at least  8 MHz.To compile with...

sampling frequency

Posted on October 11, 2012 at 09:31Hi everyone!I'm new to the world of microcontrollers. After some research, I bought my first ARM based Microcontroller; the STM32F4 Discovery.Now, I have a few questions for the community, hopefully someone can ans...

betuel by • Associate II
  • 778 Views
  • 2 replies
  • 0 kudos
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