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Forum Posts

STM32l152 External interrupts problem

Posted on August 12, 2013 at 15:29Hi, I'm trying to configure external interrupt on Port A Pin 0 and cannot get it working. Can't find the problem. The IDR register shows input but interrupt doesn't happen. The code: &sharpinclude ''stm32l1xx_conf.h...

k_ by Associate II
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High frequency GPIO

Posted on December 03, 2013 at 20:30Hello, i'm using STM32F4 Discovery board. I need a GPIO pin oscillating as fast as possible. With the code bellow I get just 3 Mhz (measured with digital probe), but I suppose there are ways to get it to much high...

DMA Peripheral Base Address

Posted on December 05, 2013 at 07:46 Hi , I am new to Stm32 . While browsing through the examples i noticed something that i dont understand for DMA . In the DMA-UART example, // In the initialzation code DMA_InitStruct...

Uart 6 problems

Posted on December 02, 2013 at 10:43Hey folks, Having some issues receiving data on uart6 on my STM32F415VG and hoping someone might be able to help. I'm sending data at 115.2kbaud with 8 bits, no parity and one stop bit. I send the data to my perip...

DMA USART Tranmission Problem

Posted on December 05, 2013 at 10:38 Hi . I am new to MCU programming and i am working on stm32f103 . I am trying to allow usart communication via dma . I have modify the code for the STM3210E_EVAL. int main(void) { /* System C...

STM324x9i-EVAL StemWin

Posted on December 05, 2013 at 00:36 Hi there, I'm trying just a little ''Hello world'' using STemWin on STM324x9i-EVAL. I've noticed that I have to turn systick on at 1ms, run the CRC unit. With all of this set, the GUI_Init is not stuck, but t...

D.Cedric by Associate II
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STM32F303 ADC Calibration procedure

Posted on December 04, 2013 at 12:22Goodmorning,I have a problem with the ADC calibration procedure: when I use stm32discovery kit, the software I made works. If I load the SAME SOFTWARE in the processor of application circuit, the calibration proce...

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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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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