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permanent I2S MCK output

Posted on May 28, 2012 at 10:30Hi I want to connect a PCM3168a audio codec to a STM32F407VG (Discovery board). The problem is the Codec is only alive when MCK is provided. Without MCK the control interface (i2c) is dead. Is use SPI3 in I2S mode for ...

tilolutz by • Associate II
  • 3554 Views
  • 14 replies
  • 0 kudos

STM32F103Z USART strange output

Posted on November 12, 2013 at 16:38Hello, I'm using a SM3210e-Eval board with a http://www.mikrocontroller.net/part/STM32F103Z processor from http://www.mikrocontroller.net/articles/ARM and I'm a newbie . I dont really get why but if I send I getti...

samed by • Associate II
  • 1287 Views
  • 8 replies
  • 0 kudos

stm32 active low pin

Posted on November 12, 2013 at 17:11Hi,on STM32F40x datasheet http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00037051.pdffrom page 45 to 57 there is a pinout and pin description table.How could recognize an acti...

frantic by • Associate II
  • 815 Views
  • 3 replies
  • 0 kudos

STM32F050G4 RTC Alarm Problems

Posted on October 31, 2013 at 09:23 Hi All, a couple of questions about the RTC Alarm. I have got the RTC Alarm working (using LSI), and raising an interrupt (RTC_IRQHandler()) successfully, but I'm stuck on the following:- 1) I would li...

RF feature of STM32W108CB microcontroller

Posted on November 07, 2013 at 15:34Hello, I want to establish a simple point to point RF communication using STM32w108CB microcontroller. I used the STM32w RF control kit to understand how to use the RF feature. I find the simpleMAC library file fo...

accuracy of EXTI

Posted on November 12, 2013 at 23:59Hi all, i'm using STM32F417 at 168MHz, and i would like to synchronize ''while'' cycle with totally 4 instructions with 6 time cycles (for example: ldr ldr tst bne) with 28MHz signal on PF8, so i configured EXTI w...

TIM1 3 phase PWM setup

Posted on November 12, 2013 at 04:01 HELP!!!! I've been banging my head against my keyboard and I can't find what's wrong with this code: /********************************************************* **** INITIALIZE TIMER AND PWM ...

usafape by • Associate II
  • 874 Views
  • 2 replies
  • 0 kudos

c write into asm

Posted on November 12, 2013 at 22:41Hi All, please somebody help me to write this c code into asm: void EXTI9_5_IRQHandler(void) {   /* Clear the EXTI line pending bit */   //EXTI_ClearITPendingBit( EXTI_Line8 );   EXTI->PR = EXTI_Line8;   NVIC->I...

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