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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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VREFINT_Factory_CONV on STM32L151RCT6

Posted on February 21, 2014 at 10:12Hi, someone can help me?I made a project with STM32L151RBT6, all worked fine.Now I have to change it with C version, because I need more RAM.On it, VREFINT_Factory_CONV at memory location 0x1fff0078 is not program...

giuseppe by Associate II
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STM32 Discovery, RC Receiver, PWM Input

Posted on February 21, 2014 at 08:59 /* Includes ------------------------------------------------------------------*/ #include ''stm32f4xx.h'' #include ''stm32f4xx_syscfg.h'' #include ''stm32f4xx_rcc.h'' #include ''stm32f4xx_gpio.h'' #include ''s...

Optimizing SPI ISRs for high speed transfers

Posted on February 20, 2014 at 21:18 I'm losing bytes during SPI receive transactions, and I believe it's an optimization problem in my interrupt service routine. I'd love some input from those with more experience in high data rate applications...

Where is the Nucleo community forum?

Posted on February 19, 2014 at 09:49Where is the Nucleo community forum?   Someone needs to add this community as-soon-as-possible, because distributors are selling the NEW Nucleo boards.  http://www.st.com/web/en/catalog/tools/FM116/SC959/SS1532/LN...

sbmeirow by Associate II
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STM32F2xx Hardware bug ?

Posted on February 21, 2014 at 06:24I want to use DMA with FSMC , but i read sth online about STM32F1xx series that it had silicon bug that destroys the chip when  FSMC is accessed by two bus masters ...... is it true for STM32F2xx or not?

GPIOx_OSPEEDR and GPIO Compensation Cells

Posted on February 19, 2014 at 23:36Hi AllI've been working with STM32F405/07 (STM32FDiscovery & my own designs) for a while now... though I'm certainly no expert:) This is a request for any discussion or useful information generally related to high...

rgodshall by Associate II
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Write to textfile

Posted on February 19, 2014 at 09:35Hi I'm trying to write some values to a textfile but without success. I work with the IAR Workbench. Bellow the code which I found also in the Arm User Guide:#include <stdio.h> FILE *f; f = fopen (''Test.txt'',''r...

csutter by Associate
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Injected ADC Conversion Time off by 1.2usec

Posted on February 20, 2014 at 16:37I am using TIM1 (PWM Mode) to trigger injected adc conversions in dual mode.  The ADC clock is set to 72 Mhz (PLL Clock).   The ADC sampling is set to 19.5 cycles --> a total conversion time of 19.5 + 12.5 = 32 cy...

STM32F103ZE TIM1 InputCapture

Posted on February 19, 2014 at 17:16HI, I'm trying to configure TIMER1 CHANNEL2 for InputCapture to measure a pulse from some external hardware. My init code looks like this:  ////////////////////////////////////////////////   // Enable Timer1 clock...