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CAN bootloader's Write Unprotect command doesn't work

Posted on December 03, 2013 at 03:39Hi All,I need help on the following two questions. Thanks for your inputs.1. The Write Unprotect command described in the application note ''AN3154 CAN protocol used in STM32 bootloader'' doesn't work at all. Is t...

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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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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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...