Posted on July 31, 2013 at 20:14I did try send 100 words 16bits from memory to memory by DMA, and it not work.uint16_t bufor_od[100]; uint16_t bufor_do[100]; RCC->AHB1ENR |= RCC_AHB1ENR_DMA1EN; DMA_InitTypeDef DMA_InitStructure; DMA_DeInit(DMA1_Str...
Posted on July 31, 2013 at 05:48Howdy, Need to output a 25kHz squarewave. Besides the obvious using a timer ISR, what other ways this can be accomplished? 1. Timer PWM? As far as I know, no timer can output a PWM out to PF.15. Am I wrong? 2. ...
Posted on July 26, 2013 at 16:31i make a board with stm32f107 mcu i want to use usb host and read from flash disk. i compile example in st.com an program my chip but not work usb please help me
Posted on July 31, 2013 at 08:33Hi,I'm working with stm32f2. I need example code, to count time between two rising edge of GPIO. I read somewhere, that is possibile by appropriate timer's configuration without GPIO's interrupt. Can you help me?Thank...
Posted on July 31, 2013 at 11:55 Hi, I create on my stm3220G evaluation board an example with USART. The code: #include < stm32f2xx.h > #include < misc.h > // I recommend you have a look at these in the ST firmware folder #include < st...
Posted on July 31, 2013 at 12:331. What is total delay produced by timer in STM32f205:delay = ( (ARR+1) * (PSC+1) ) / Timer_freq or delay = ( (ARR) * (PSC+1) ) / Timer_freq ordelay = ( (ARR) * (PSC) ) / Ti...
Posted on July 16, 2013 at 14:24I have STM32F4-discovery board. And I use code from example to configure PWM output. Chapter 14.4.9 TIMx capture/compare enable register (TIMx_CCER) of RM0090: Bit 0 CC1E: Capture/Compare 1 output enable. CC1 ch...
Posted on July 25, 2013 at 19:22Hello everyone, I'm currently working on a USB application on a STM32F103, using the Audio Class, and after some work and extensive reading (USB specification and Audio Class specification of course, + several example...
Posted on July 31, 2013 at 09:05Hi,I'm working with stm3220G evaluation board. I loaded keil's usb example and installed on my pc virtual COM port (windows 7). When I connect pc with board on in my control panel the usb is: Port_#0005.Hub_#0004, w...
Posted on July 30, 2013 at 20:19 I set all registers as shown in Reference Manual. When I preview OTG_FS_GRXSTS register (value: 0x004c0080) I know that the host sent SETUP packet to my discovery board. The first SETUP packet should contain GET ...
