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USB: how to manage disconnect and re-connect the cable

Posted on December 01, 2014 at 09:48Hello all,my application is based on stm32l152, I use StdPeriph_Driver and STM32_USB-FS-Device_Driver.USB transfer works fine until I disconnect usb cable. After disconnecting the firmware stuck running just inter...

bruzzim by Associate II
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STM32L100 ADC Result Error On wakeup from Stop Mode

Posted on November 24, 2014 at 10:56Hi,    My application wakes-up from Stop Mode every 100mSec, takes ADC conversion from two channels in Scan mode to DMA then makes some processing. I get roughly +1.5% error. When i disable the Stop Mode but sampl...

STM32CubeF4: USB not detected.

Posted on November 26, 2014 at 16:17Hello!I am ussing STM32CubeF4 to implement a USB Host application on a STM32F4 -discovery board. When I connect a USB stick it never is detected. Connect interrupt must be raised but that is not happening. Any ide...

maria2 by Associate
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RTC GET_TIME / SET_TIME STM32-F4 DISCOVERY BOARD

Posted on November 07, 2014 at 10:22hello all ,does any one have a working code example  for keil  for RTC / calander ...for get or set time and date ( i need it to home automation system) thanks in advanced.(i don't conect 32k ... external crystal)...

maor by Associate III
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ADC Conversion

Posted on November 30, 2014 at 23:44I'm currently working on a university project that involves the analogue to digital converter on the STM32F0 discovery board. I've studied the manual and (as far as I can tell), initialized the registers correctly...

eric23 by Associate
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clear USART TC flag

Posted on November 27, 2014 at 21:20Hi I am using USART in Interrupt mode in Tx and Rx. Rx is working fine But in Tx I keep getting interrupt. I just need to get the interrupt once when the data is sent. but I keep getting the interrupt again and ag...

hossam by Associate II
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  • 5 replies
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dead time in stm32f4

Posted on November 29, 2014 at 17:24I'm generating a 50Hz complementary PWM wave in stm32f4 i'm stuck on dead-time insertion as i want to insert a dead time of 2.5ms, I don't know how to do that here is my code. This is what I thought it should be b...

Which USB mode for high speed transfer?

Posted on November 29, 2014 at 04:36Hi, I've been working with the STM32 for several years, but never done any USB related stuff. Just recently I've got working an example of USB-HS using the mass storage class.In my application I have a 16Gbyte SD ...

carl2399 by Associate II
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Cortex M3 bit banding

Posted on November 23, 2014 at 13:35Dear All, I red the ARM reference manuals regarding  the ''bit banding'' to understand the operation.   I do not understand how it's overcome the RMW (Read modify write )behaviorlease adviceThanks in advance