STM32 MCUs products

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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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ADC inputs interfere

Posted on June 11, 2013 at 02:12 Running the following two ADC3 inputs, channels 11 and 12 (PC1, light sensor and PC2 potentiometer) on STM32F4Discovery, problem is that when I vary the PC2 input, the reading pertaining to PC1 also varyies a bit....

pccmd by Associate II
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STM32f4 rs232 IAR IDE

Posted on June 02, 2013 at 13:34hello i had a problem  when i send a character or receive a character , i always get a wrong character like ''-'' or a heart ... ps: i'm using rs232 -> USB converter here is my code: &sharpinclude ''stm32f4xx.h'' vo...

IAP USB driver source code

Posted on May 23, 2012 at 14:05Hello, I was reading application note (AN3354) concerning IAP using USB host, and i found the name of c files:main.c, stm32f10x_it.c, command.c, flash_layer.c, usb_bsp.c, usbh_usr.c I googled these file but i didn't fi...

hisham23 by Associate II
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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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STM32F2 PLL and current

Posted on June 11, 2013 at 08:59Hi,I have selected an STM32F2 MCU for various reasons and I need to run it in the lowest power possible.The CPU will run most of the time et low speed 4 or 8 Mhz. For this I was thinking to use a 16Mhz crystal and byp...

Adalgiso by Associate II
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  • 1 replies
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I2C to EEPROM(AT24C64) is not working fine.

Posted on June 11, 2013 at 08:00Hi,    I am trying to communicate with the external EEPROM (AT24C64) using I2C when i'm writing into the EEPROM it works fine, when i am reading the data from the eeprom it blocks on the internal address byte sending ...

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
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  • 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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