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USB: how to increase the input and output receive buffer

Posted on December 02, 2014 at 21:24Hello,I designed my own application starting from VirtualComport_loopback example project.I have a modbus client protocol running on USB and using CDC_Send_DATA() and CDC_Receive_DATA() send and get data from PC v...

bruzzim by Associate II
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Vbat Current

Posted on November 07, 2014 at 17:52I am working with a STM32F051xx for a real time clock application. Looking at the datasheet (page 53, table28: typical and maximum current consumption from the Vbat supply), it is noted below the table that the MC...

dave23 by Associate II
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FatFs examples

Posted on December 02, 2014 at 18:43hi every oneim trying to use FATFS file system library for stm32f103 with keil 5.12 & mmc cardkeil show some errors like : error:  #20: identifier ''asm'' is undefinedhave any one a example of FAT FS for stm32f103...

mhdizgah by Associate II
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Problem with ADC interruptsin continuous mode

Posted on November 30, 2014 at 20:08 Hi , I have a problem in the program after enabling the ADC interrupt , The processor doesn't do anything after starting ADC_READ Here is a simple program which reads data from ADC in continuous mode and w...

TCP/UDP Echo Server Example

Posted on March 19, 2012 at 18:21Hello, did anybody try the TCP/UDP echo example from stm32f2x7_eth_lwip.zip? It compiles out of the box, and tcp echo works fine if tried first, but udp echo does not work for me (I am using a STM32F220G-EVAL board)....

zabel by Associate III
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  • 7 replies
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STM32F437 video compression H264

Posted on December 02, 2014 at 11:44Hello. In a project we are developing we use the STM32F437 MCU for streaming video. What I would like to know is if with the 256KB RAM it has, it is enough for compress the video in H264. We have not free size to ...

javier by Associate
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  • 2 replies
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I2C execution speed, with vs without DMA using HAL driver

Posted on December 01, 2014 at 12:56Hello, I am interfacing SC620 LED driver using I2C. Here is a function where writing to the LED driver occurs./** * Write data to SC620 led driver register. * * @param[in] reg      Select register. * @param[in] va...

primozic by Associate II
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  • 8 replies
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Improve bitbang driver speed

Posted on November 24, 2014 at 21:06Hi,I am using the STM32F2xx cube API to implement a raw bitbang usb driver for the FTDI ft245.  I am currently achieving speed of 5000 bytes/s.  I would like to improve the speed.  The bitbang code is simple as:<....

ST-Link upgrade

Posted on December 01, 2014 at 15:56I am using stm32fvldiscovery card and Kiel uv4. Flash download fails with dll fail messages ( these are different today to yesterday) But when I ran a kiel provided STlinkupgrade.exe it reported old firmware versi...