STM32 MCUs Products

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Problem receiving data on USART1

Posted on July 18, 2012 at 12:37 Hello, I am using the STM32L-Discovery board and try to transmit / receive data via USART1. My problem is that the controller does nor react on data sent from the PC, but if I send one byte from the contr...

USB FS setup packets and buffer overrun

Posted on July 16, 2012 at 07:23Hi all! I have two questions on how to interpret the documentation for the USB FS device macrocell in medium density devices. 1. The section on OUT transactions states that when a buffer is overrun (i.e. the data payl...

STM32F4Discovery Virtual COM port

Posted on July 10, 2012 at 22:00Hello! I would like to send simple data from STM32F4Discovery to PC (''Hello World!'' every second would be perfect for beginning). I am pretty lost here. How do I create virtual COM port? When I connect PC to the bo...

jurij by Associate II
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Bridging I2C Ports Using DMA

Posted on July 16, 2012 at 18:14Hi,Just a very quick question - is it fairly easy or even possible to bridge or tie 2 I2C ports together using a DMA. It's just something that I'm looking to do due to a change in a requirement whereby we just want to...

dclark9 by Associate II
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  • 4 replies
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STM32 I2C Lock-Up

Posted on February 03, 2010 at 20:11STM32 I2C Lock-Up #send-i2c-stop-to-unlock-slave

cballard by Associate II
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  • 6 replies
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Best declaration of array of strings

Posted on July 14, 2012 at 17:09Hi all, I am developping an application on 16K RAM device and I am facing limitation of RAM size so I want to optimize the definition of the following pointer to strings and I want to  know if I am well understanding ...

NVIC interupt nesting and the SCB->ICSR register

Posted on July 16, 2012 at 23:46I use the ICSR register inside an interrupt service routine to determine which vector was used.  I use the low 9 bits to identify the currently active interrupt. I'm not clear on what happens to the ICSR if nested int...

STM32F205RBT6 Alternate function mapping

Posted on July 16, 2012 at 12:02Hello, Can someone please explain to me how the alternate function mapping works? I found the alternate mapping table in the datasheet but how to read it. What is the default location of peripherals. For example by d...

spi interrupt problem for lsm330dl

Posted on July 09, 2012 at 12:33i try to use the spi interrupt , but the whole program just hanged at case 101 which is in the void GYRO_Task(void),  it shows me ''+++''. anything wrong? here is some part of my code.  #ifdef GYRO_SPI_USE_INTERRUPT  ...