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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...
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...
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...
Posted on February 03, 2010 at 20:11STM32 I2C Lock-Up #send-i2c-stop-to-unlock-slave
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 ...
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...
Posted on July 11, 2012 at 15:12Good Day I am new to ARM and Atollic TrueStudio. I decided to get going by downloading and testing an existing demo project which has functionality I require and the understand it and move forward. I have a STM3220G-E...
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...
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 ...
Posted on July 06, 2012 at 10:02Hi, With a STM32, I have a problem to select either EEPROM (M24LR64-R and M24M02-DR) on the same bus I2C. Here are the ''device select code'': For M24LR64-R: 1 0 1 0 X 1 1 X In the order: 1 0 1 0 = Device ...
