STM32 MCUs Products

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STM32L EEPROM writing with USB VCP trouble

Posted on June 05, 2013 at 07:47Hi! I'm using STM32L152 + IAR6.5. EEPROM writing/erazing routings are placed in RAM. Interrupt vector table and critical interrupt handler too. I need to write EEPROM and serve critical interrupt at the same time. Bef...

glinsky by Associate
  • 767 Views
  • 2 replies
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Input pull-up to pull-down duration on STM32F303

Posted on June 06, 2013 at 03:42How long does it takes the STM32F303 to change an input from pull-up enabled to pull-down enabled?  How long does it take to change an input from pull-up enabled to pull-down enabled? It seems that if I read the inpu...

pmoore by Associate II
  • 610 Views
  • 1 replies
  • 0 kudos

TIM1_UP_IRQHandler not working

Posted on June 06, 2013 at 00:05All my timer interrupts are working except for TIM1. What could be wrong. I'm using Keil ARM with the STM32F013C8. Here is my startup code: EXPORT  WWDG_IRQHandler            [WEAK]                 EXPORT  PVD_IRQHand...

bluscape by Associate III
  • 1160 Views
  • 1 replies
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Using DMA with communication peripherals

Posted on June 04, 2013 at 16:59Hi all, I just want to clear up my understanding of DMA and how it works with respect to communication peripherals such as SPI and I2C. First, let's say I have a function that does some matrix multiplication and saves...

kevin by Associate II
  • 1913 Views
  • 8 replies
  • 0 kudos

Popular Microcontroller?

Posted on June 05, 2013 at 15:41I'm looking to order a 32-bit microcontroller to replace my atmega168.  Whatever I order needs to have at least 2 quadrature decoders, and it would be great if it had an fpu, but that's not necessary.  Also, I'm looki...

mattfox by Associate II
  • 649 Views
  • 2 replies
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Flashing form windows command line

Posted on May 16, 2013 at 18:53I have a project where I will need to flash a few hundred chips that are already on boards. I have set up a chain programmer which is controlled by an MCU. basically it is just a chain of sockets for the boards that al...

berge472 by Associate II
  • 2033 Views
  • 1 replies
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LDR-Light Dependent Resistor and STM32Discovery

Posted on June 03, 2013 at 20:11i want to drive a motor for a control of the door  following the LDR sensor signal ( open when it feel light and close it when it's darkness)I have an STM32F100RB. please i need your help urgently thanks a lot

jfaycel by Associate
  • 1100 Views
  • 3 replies
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STM32F3 Discovery / STM32F303VC 5V tolerant IO

Posted on June 04, 2013 at 18:38Good afternoon, I'm a student working on a robotic project using a STM32F3 discovery evaluation board. I read that there are several IO that are 5 volts tolerant among all IOs the board have. The issue is that I can't...

pierric by Associate II
  • 1543 Views
  • 4 replies
  • 0 kudos

STPM01 Power meter software application setup

Posted on May 29, 2013 at 15:33Hi,I am trying to make a 0,5 class meter with STM32 and STPM01.I found a software to calibrate the meter that is STSW-IPE005:http://www.st.com/web/en/catalog/tools/PF257783What I wanna know if there is a hardware that ...

felipe by Associate II
  • 1093 Views
  • 6 replies
  • 0 kudos