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Posted on September 22, 2012 at 18:43Hi, I have STM32F0 Discovery, I need send a char example 'A' in USART1 that use PA9 to TX. The configuration are: /* Enable GPIO clock */ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); //PA9 ,PA10 ...
Posted on September 23, 2012 at 06:30Hi,I'm looking for STM32 OHCI driver. The STM32 USB library is good, but it is not a standard of coding stype, so difficult to expand acpplications.I'd like ohci-stm32.c will appear in the Linux kernel driver lik...
Posted on September 21, 2012 at 23:26Hi,I'm trying to use the ST-Link on the STM32VLDISCOVERY board to programa STM32F407ZGT6 using the SWD interface but it just don't work ...I'm getting the ''No target connect'' error. I have triple checked all th...
Posted on September 21, 2012 at 20:26We are working on a STM32F417VGTx. We wrote a DMA driver and confirmed it was working memory to memory. Next, we began integrating it with an SPI driver (SPI2). Initially, the engineer working on the SPI drive...
Posted on September 18, 2012 at 04:11I have not done any usb before so i'm a little, well a lot ignorant in how it works. Could I get a $3 usb<->wifi dongle and somehow use it on a stm32 m4 ? Would it be really hard ? Where should I start reading. I...
Posted on September 21, 2012 at 21:20STM32F407: I use Timer2-5 in QEI configuration, and in my motor control loop (coming every 45usec) I need to read out the current position from TIM->CNT. If I scan the values read out - it is strange that about e...
Posted on September 18, 2012 at 21:20Hi, as i know stm32 operations alway read-modify-write. Not atomic. If i read below it looks like C is already atomic for some operations. Or is it not guarantee on stm32 platform? http://www.informit.com/guides/...
Posted on September 21, 2012 at 18:08The ST32F4xx user manual, RM0090, on page 205, for the EXTI_PR (pending register) bits says: > This bit is cleared by writing a 1 to the bit > or by changing the sensitivity of the edge detector. The latter one ...
Posted on September 21, 2012 at 15:07When I program a GPIO pin, I have to define a ''speed'': 2, 10 or 50MHz. What does this mean in terms of hardware? Is this a filter? If I program the pin with 2MHz I can't output a signal with 5MHz. What is the h...
Posted on September 18, 2012 at 17:34Hi thereI am using the Ethernet Transceiver ST802RT1A to make my own PCB board following the design of STEVAL-PCC012V1 (http://www.st.com/internet/evalboard/product/250577.jsp) except one thing - I changed the ma...
