STM32 MCUs Products

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Free real-time operating system on STM32F100RB-Discovery

Posted on September 19, 2014 at 10:26Hi people, I have STM32F100RB-Discovery board. I need a free real-time operating system which I could deploy on that board. I know for FreeRTOS, but following their manual I haven't succeeded to deploy it yet. A...

ing2 by Associate
  • 622 Views
  • 3 replies
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UART4 IRQ Handler not firing

Posted on September 20, 2014 at 11:50With my STM32F4 discovery board I cannot get the UART4_IRQHandler to be triggered on incoming serial data. However the USART2_IRQHandler functions as expected and when the data is ready from the UART4 RX data reg...

andrew23 by Associate II
  • 1041 Views
  • 2 replies
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error in programming

Posted on September 20, 2014 at 11:16hi every onewhen im trying to programm my stm32f103ret6 via jlink in keil v5.11, it shows this error:can any body help me please?WBR #stm32f103 #jlnik

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mhdizgah by Associate II
  • 607 Views
  • 4 replies
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STM32F429 UART7 Rx question

Posted on September 19, 2014 at 13:19Hello friends.I'm trying to communicate with DS18B20 via 1-wire interface.Here is the example of reset function (all pins and clk are set erlier). The problem is that the variable data does not receive UART7 DR v...

baev_al by Associate III
  • 1361 Views
  • 10 replies
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stm32f429 I2C clock speed

Posted on September 19, 2014 at 22:58 hello guys, I have a problem with the clock speed of my I2C bus, I want to have 100 hz of frequency but I am not able to reach it. That is my code * @file Touch_Panel/main.c * @author MCD Application Team...

Data structure for data write and Data read

Posted on September 19, 2014 at 22:27 I would like create a variable that contains port and pin information, so I can use the high level name to perform all reads and writes. I am looking for help with the syntax to create a: Structure for...

ebommer by Associate II
  • 1526 Views
  • 2 replies
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need to have time separate from main loop_stm32f407

Posted on September 19, 2014 at 15:30hi every body in my program i need to do somethings in specific time , this ''time'' is not equal all the time.for example for doing first job i need to do it 5 sec after a flag become set. and after that i need ...

DMA2 (Can't Configure Seperate Streams for ADC1 and ADC2)

Posted on September 18, 2014 at 17:44I have the STM32F407 Discovery board. I am configuring two streams using DMA and ADC The first stream uses Stream 0 channel 0 of the DMA 2 ie ADC1 which reads the value of ADC chanel 9 1N9 and gets sent to circu...

Puzamoya by Associate II
  • 1207 Views
  • 7 replies
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The importance of DMA for ADC

Posted on September 19, 2014 at 10:11Hello,I am wondering what's the utility of using the DMA when getting informations from ADC IP. Thank you.Best regards #adc #dma

anes by Associate
  • 536 Views
  • 2 replies
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Feed Two GPIO From Same Timer?

Posted on September 19, 2014 at 16:25I had been using two different timers based on a PLL to feed two different GPIO pins. It may be creating some timing shifts that my hardware (custom ASICs) don't like. I tried feeding both GPIO from the SAME Time...

jvavra by Associate III
  • 538 Views
  • 3 replies
  • 0 kudos