STM32 MCUs Products

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Watchdog timer problem

Posted on March 22, 2013 at 11:27Hi, I am using the STM32L151VB in a custom board. The problem I have is with the watchdog timer. The maximum time out is too less for me to do anything that I intend to. Right now I am using the TIM4 timer for a long...

adithya2 by Associate II
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USART_Printf demo with STM32L152-EVAL

Posted on March 29, 2013 at 06:45Dear everyone,     USART_Printf demo provided in STM32L1xx_StdPeriph_Lib_V1.2.0 can't run on STM32L152-EVAL. I found that there is no output at ST3241EB Pin 11. However, I use PC10/PC11 (UART3) with another MAX232, t...

xinjin by Associate II
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  • 2 replies
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Using NRST for system reset through hardware

Posted on March 30, 2013 at 19:25HiI would like to apply an automatic system reset in case a particular condition in my system is met. I already know how to apply a system reset through software. Now I want also to do it via hardware. If If I pull p...

USART and stop bits

Posted on June 23, 2011 at 23:58In playing around with USART3, I'm attempting to configure it for DMX (250000 baud, 8 data bits, 2 stop bits).  In fact, when configured this way, what actually seems to happen is that any data I attempt to send is ac...

slandrum by Associate II
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  • 9 replies
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NHD-C12832A1Z with the STM32F103

Posted on March 30, 2013 at 18:41I need some help. I have a board with a STM32F103CB micro and an NHD-C12832A1Z 128x32 pixel graphic LCD display with built in ST7565R controller. My problem is that I can not get the display to display anything. The ...

STM32F407 nested interrupts

Posted on March 31, 2013 at 13:18Once again I feel really stupid. I can't get nested interrupts working.In the attached file there are three functions, NVIC_Configuration(), SysTick_Handler() and TIM6_DAC_IRQHandler().I intend the SysTick interrupt ...

STM32F4: Using two DMA streams with single request

Posted on March 21, 2013 at 08:25Device: STM32F405. Is it possible to use two DMA streams with single request? For example, connect DMA2_Stream0 to channel 6 (TIM1_TRIG) and DMA2_Stream4 to channel 6 (TIM1_TRIG, too). I want to start two diffirent D...

Jumping to a memory location..bootloader C code

Posted on March 30, 2013 at 22:15Hi, In our system, I have to be able to update the application code. Therefore I believe I need to copy the application to memory location 0x8000000 and then jump to this location...basically a small bootloader of so...

stenasc by Senior
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Beginner there is any pdf reference about stm32

Posted on March 30, 2013 at 09:21I have experienced with AVR MCU-8bits programs. When I was begin to AVR MCU, there is an official reference that prepared by Atmel itself for developer to understand what register should be initialed in order to have...