Posted on July 26, 2017 at 10:04Hi,I'm working on application that uses a USB HUAWEI MU709 modem with STM32F407. First off all, i used the usb stack from keil to  implement the CDC mode: https://www.keil.com/pack/doc/mw/USB/html/host_cust_tutorial.h...

Posted on June 12, 2014 at 15:56Hello, I'm trying to use stm32F3 as SPI slave, and communicate with master via another board. I've configure SPI1 as slave. Slave clock set to 18MHz. I'm using NSS hardware, and getting ETXI once CS gets low in NSS pi...

Posted on May 09, 2014 at 17:21Hi all, I'm using Discovery F3. I have a problem to read my input GPIO PD. The configuration is as indicated below: /* GPIOD Periph clock enable */   RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);  /* Configure PD...

Posted on April 25, 2014 at 16:52Hi, I'm using the F3 Discovery board  as a Slave with hardware chip select. I have to communicate this board with another board using the PIC microcontroller acting as a Master. The problem is that the pin voltage o...

Posted on April 17, 2014 at 14:59Hi all; I'm trying to connect to F3 Discovery board using SPI in full duplex. One acting as master, the other as a slave. I have succeed to get them work with no problem if the Software NSS management is configured. ...