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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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Tx-Rx problem with USART in STM32L- Discovery !

Posted on April 25, 2012 at 17:11This is my code for Transmission :void USART3_tx(void){ USART_InitTypeDef USART_InitStructure; GPIO_InitTypeDef GPIO_InitStructure;   /* Enable GPIOB and USART3 clock */  RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART...

ChibiOS mp3 player

Posted on May 08, 2013 at 05:53Has anyone ever tried using the mp3 player on the ChibiOS website? I downloaded the project file, uploaded the prebuilt binary to my board, but cannot get any sound out of my board. I got the mp3 files in the root dire...

STM32F1xxx Clock Configuration Tool?

Posted on May 08, 2013 at 02:18Is there one?  I found the STM32L1xxx here http://www.st.com/web/en/catalog/tools/PF257838, but can't find one for the STM32F1xxx line.  Perhaps the L1 version will work for the F1, but I can't find any resource that i...

chogan by Associate
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TIM1 update interrupt problem

Posted on May 07, 2013 at 15:16I initialized two timers (TIM1 and TIM3) on STM32F100R6 the same way to give an update interrupt. Now it seems both timers run at the same speed, but the update interrupt on TIM1 occurs not that often like TIM3 does. B...

keckardt by Associate
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MEMS: paralleling sensors to reduce noise?

Posted on May 07, 2013 at 15:56Hi, I've heard there is a way to reduce noise (and increase performances) of MEMS sensors. Let's suppose I'm using MEMS single axis accelerometer: Noise = 32 mg RMS value in band 0-100HZ Output (digital) = 1024 counts ...

mbertoni by Associate II
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Question about the RTC of STM32F103

Posted on May 07, 2013 at 15:29We're using RTC as a timer to wakeup STM32F103 from stop mode frequently, I'm quite confused on the descriptions in RM00081. what's the difference between RTC_IRQHandler and RTCAlarm_IRQHandler? If an alarm comes, both...

qinghui by Associate
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