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Forum Posts

STM32F USB Device with USB3 host

Posted on March 12, 2014 at 17:40Hi,I'm developing both a driver on the host side and application on the client/device side using the onboard FS phy. Provided the host is USB2 both sides are behaving as expected. If I plug the device into a USB3 por...

DMA and CPU accessing SRAM same time

Posted on March 19, 2014 at 15:28Hi,I am working on a system using STM 32F107 processor(connectivity line). Because of our requirement same memory location of SRAM is accessed by both CPU and DMA. CPU is supposed to move the data from initial locati...

nmadhavan by Associate II
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  • 7 replies
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ADC regular channel not ready after enabling ADC

Posted on June 09, 2012 at 21:53I'm trying to use a single ADC channel on a STM32L151 using Keil Realview and ST libraries. After enabling the ADC I wait until the ADONS bit is set indicating the ADC is ready to convert but it does not set. Looking ...

bluscape by Associate III
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  • 6 replies
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Problem sending with USART_SendData

Posted on March 20, 2014 at 16:25 USART_SendData(USART1, 12); USART_SendData(USART1, v_dc_int); USART_SendData(USART1, v_dc_fra); If I send only one of the it is received fine. But if I send them all, I only can see the last of them. Do I...

pedroh44 by Associate
  • 471 Views
  • 1 replies
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delay function Mcs o mls

Posted on March 18, 2014 at 22:06Hi, I'm looking how to perform a  delay function whith microsecondor milisecande Who can help me ?thank you alot

haythem by Associate II
  • 936 Views
  • 8 replies
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ADC initailization problem on STM32L series

Posted on March 20, 2014 at 13:52Hi, I am trying to use ADC for reading the voltage on pin A4.. I wrote an initialization method, however it get stuck in the last WHILE. Here there is the code: void ADC_Initialize(void) {   ADC_InitTypeDef  ADC_Ini...

luca2 by Associate II
  • 471 Views
  • 1 replies
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SIP Stack for STM32F4

Posted on March 19, 2014 at 10:19I want to build a VoIP Phone ith STM32F4. Does anybody know, if there is a small SIP-Stack that can easily used with microcontroller. Thanks Marc #cross-post

doebber2 by Associate II
  • 1169 Views
  • 2 replies
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SPI TI mode

Posted on March 19, 2014 at 10:49Hello,could somebody explain me what is TI mode in SPI? Thank you #ti-mode #spi

karolina by Associate II
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  • 2 replies
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General question about DMA

Posted on March 18, 2014 at 22:45Hello everyone, i have a few general questions about DMA and i will appreciate the help if someone could answer to my questions. I know it is used to transfer data at high speeds between memory and peripherals, or me...