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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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How to determine the origin of Wakeup from Standby?

Posted on February 16, 2015 at 21:41I am studying awakening from Standby Mode on STM32F100CB. I have this context: we set up WKUP pin and RTC Alarm, and go to Standby. Then, rising edge on WKUP pin or RTC Alarm wakes the system up. Here are a few th...

apolotsk by Associate II
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STM32F205RCTb system boot loader

Posted on February 18, 2015 at 10:52HiWe want to use USB DFU feature available in system bootloader for firmware upgradeController used: STM32F205RCTbHow to jump to bootloader from application(Running in Flash). what should be the Boot options (Boot...

Timer 3 PWM - strange behaviour on first pulse

Posted on February 18, 2015 at 23:50Hello, I am programming Timer 3 for PWM mode. Please see the attached image. The yellow trace is Timer 3, the green is Timer 4, which follows Timer 3 by a period of 180 degrees shift. The top PWM train (Timer 3) ...

How can put points between the string?

Posted on February 20, 2015 at 02:05 hi all How can put points between the string? ( for example: 00.00) thanks void Str_convert(unsigned long t, unsigned char *str, unsigned char n) { unsigned ...

kemal by Associate II
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DAC can't output 0V

Posted on February 19, 2015 at 07:41 I'm using stm32f429 discovery board. I have configured DAC Channel 1 (PA4) for DAC ouput. When I try to configure ouput in the range of 0.15v - Vref(2.97v) I'm getting the ouput properly, but when trying to ...

STM32F105RC I2C2 always busy

Posted on January 03, 2013 at 16:15 Hi, I hope someone can help. I have got the I2C1 peripheral working fine with the above chip, but when I try and initialize the I2C2 peripheral, the busy flag is always set. Does anyone have any i...

owen2 by Associate II
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Memory Sections

Posted on February 20, 2015 at 13:36Hi all,Im trying to add a new section in the first 128Bytes on my Flash memory. I would like to start my my code in 0x80000080 but my code doesn´t run. What additional change I have to do in my code? 

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gerardo by Associate II
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STM32F103 firmware library

Posted on February 20, 2015 at 13:01I am unable to understand the following syntax ((ADC_TypeDef *) ADC1_BASE). Please help me understand the meaning of this code. Is this some kind of a pointer?

shauns87 by Associate II
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