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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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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
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  • 14 replies
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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
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  • 8 replies
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I2C under Matlab Simulink STM32F4 Discovery

Posted on November 13, 2013 at 14:35Hello everybody, is it possible to use I2C with the Simulink Target for the STM32F4 Discovery? In the GPIO-Config-Block, you can set the Alternate Function on I2C, but I cant find how to initialise I2C oder read/s...

micha2 by Associate II
  • 566 Views
  • 2 replies
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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
  • 495 Views
  • 3 replies
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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...

The use of spi clock phase

Posted on November 13, 2013 at 14:44I'm trying to use spi  to talk to a EEPROM. It has a cs setup time of 200ns. I'm wondering if  I can set the CPHA to meet the requirement in case the spi speed is in the proper range. Is this the purpose of clock ...

leon23 by Associate II
  • 311 Views
  • 0 replies
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STM32F427 HardFault

Posted on November 13, 2013 at 14:05HelloThe original program was tested on STM32F407ZG MCU, but I need to have it running on a STM32F427ZI.On the 407 the code was running fine, but when I start the debugger with the new modified program it stops at...

jjens2 by Associate
  • 265 Views
  • 1 replies
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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...