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STREX/LDREX question

Posted on December 04, 2013 at 19:47 Hello, I'd like to implement synchonization with LDREX / STREX. What I don't understand is when I have multiple values to access with synchronization ... void task1(void) { ldrex ...

root by • Associate II
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  • 1 replies
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Virtual Com Port Loopback runs w/o debugger not w/ debugger

Posted on September 26, 2013 at 18:01Greetings,I've brought up the ST example VirtualComPort_Loopback (V4.0.0) on a Keil demo board (MCBSTM32E vers3) and the Keil enviroment (uVision 4.71.2.0) connecting through the ST virtual comport driver (1.3.1....

steve1 by • Associate
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  • 2 replies
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Using PH2 as GPIO

Posted on December 04, 2013 at 11:27 Hi, i'm using a STM32L151VD for a little project and i want to use the Port H2 as a normal Output for SPI CS. Using another Port (e.g. PC8) all works fine, but with PH2 it does not work at all. ...

jr777 by • Associate
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  • 2 replies
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Split string -> default handler

Posted on December 04, 2013 at 00:05 hello everybody! I need help with my string splitter function. I use stm32f407 and CoIDE for develope. This is the function: char** str_split(char* a_str, const char* a_delim) { char** result =...

totti001 by • Associate II
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  • 7 replies
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STM32F401 sampling now

Posted on May 14, 2013 at 19:37The http://www.st.com/pr-stm32f401 is the entry-level microcontroller in STMicroelectronics� high-performance http://www.st.com/pr-stm32f4 featuring the ARM� Cortex�-M4 32-bit/DSP core. While running at lower frequency...

USART Issues after wake up from stop mode

Posted on December 03, 2013 at 19:56Hello,I've succesfully started programming a STM32F0Discoveryboard: MCU is running on HSI (8MHz) at runmode.MCU is going into/outof stopmode every 5 seconds using the RTC running on LSE (32.768kHz)USART1 is conn...

r23 by • Associate II
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  • 6 replies
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UART DMA STM32F4 Discovery

Posted on December 03, 2013 at 21:45 Hello I found an example of using DMA with UART on STM32F407 on this thread UART with DMA mode but i can't make it work. I use a STM32F4-Discovery and i try to see if DMA1_Stream2_IRQHandler is called...

9bit SPI Interface

Posted on December 03, 2013 at 09:26Hi. I want to know that there are any MCU which support 9 bit SPI interface. Do you know that? I will wait for your answer. Thanks.

andykim by • Associate II
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Problem with lwIP examples (STM3210C eval)

Posted on December 02, 2013 at 23:38I am recently working on lwIP. I have a STM3210C eval board.  I installed pragram codes. And I connected my board to modem using Cat5e ethernet cable. LCD is working, I think, that shows program is properly instal...

RTC TIMESTAMP when a TAMPER event occurs

Posted on December 03, 2013 at 22:32 Hello Guys, I am trying to make the RTC timestamp feature works but I couldn't. I have to detect a tamper event during anytime, even if the MCU is turned off, for this reason I have connected a batter...

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