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RTC AND LSI IN VBAT OPERATION

Posted on June 11, 2013 at 09:25Hello! lately i configured the RTC to work respectively to the LSI oscillator. The RTC is working well while supplied from VDD pin. when working from the VBAT the last time count is preserved but from turning off to ...

meir3 by • Associate II
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  • 3 replies
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stm32f4 timer2 problem.

Posted on June 10, 2013 at 23:19i used timer2 and it's clock source from  APB1   and Prescaler  value for  APB1 is 4 it's mean's APB1 work at 42mhz     ''168mhz/4 ''     becuase the maximum  frequency is 42mhz for APB1. i searched in internet and so...

jbl_raw by • Associate II
  • 559 Views
  • 1 replies
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stm 32 discovery adc tachometer code for sensorless motor

Posted on June 10, 2013 at 17:34i have a  stm32 discovery kit , and i am sensing  the back emf of sensorless motor which is driven by other kit. i am using adc with one channel and a timer. the main aim to calculate the period while reading the adc-...

aman by • Associate II
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  • 1 replies
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Which interrupt for TIM1?

Posted on June 06, 2013 at 20:48Hello, I've TIM1 set for PWM signal generation (STM32F407VG). Everything works well but I want an interrupt to be rised on the falling edge of pulse and I have no idea how to set it. Currently I've the following sett...

jamsoft by • Associate II
  • 1196 Views
  • 2 replies
  • 0 kudos

STM32F205RC using ADC with DMA

Posted on June 09, 2013 at 16:32Hey Guys, I'm currently playing with the STM32F205RC Controller and I have some troubles with using  the A/D converter with DMA. The task I want to do is quite simple. I want to measure a voltage using ADC1 on Port A ...

Avonac by • Associate II
  • 636 Views
  • 2 replies
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USB Driver issues

Posted on June 10, 2013 at 16:30In the user manual for the discovery board, it says that an installation wizard should appear when I connect the board to my computer for the first time, but that didn't happen.  I downloaded the driver from here: htt...

mattfox by • Associate II
  • 886 Views
  • 4 replies
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Stm32f407 FatFs + USB MSD, Example

Posted on June 10, 2013 at 15:00Hi! I need to make MSD USB interface to read data from SD Card. Its my first attempt to mass storage class. I'm using fatfs library (http://elm-chan.org) with LFN option. Im looking for some examples for fatfs (I don...

zbiku11 by • Associate II
  • 1275 Views
  • 5 replies
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CMSIS DSP library and FPU configuration

Posted on June 06, 2013 at 21:35I tried for an entire afternoon to configure my IDE for compile CMSIS DSP library.I don't know if there's somebody that is even duller than me but i want to give help to those people...Here there's what i did:1) Add t...

dario by • Associate II
  • 1771 Views
  • 3 replies
  • 1 kudos

mac filter

Posted on June 09, 2013 at 12:53hello everyone i have written a program that sends and receives Ethernet Frame but i have a big problem in receiving Frame.it only receives frames which have the following mac address: 0xff:0xff:0xff:0xff:0xff:0xff . ...

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