STM32 MCUs Products

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Forum Posts

STM32L151 clock issue

Posted on May 01, 2017 at 09:11Hi,i am using STM32L151 in our borad and for main clock source i have used pericom 8mHZ crstal and when i am trying to observe clock on scope ,i am unable see the clock.But SW team programmed the controller and with LE...

Stop mode with Interrup EXTI

Posted on April 28, 2017 at 10:17Hello family ST,I would like to use stop mode with an interrupt Pin,I tried the PWR Stop example in STM32Cube_FW_L0,When I put the PA12 Pin to Vcc I have ?c wake up after it runs the program and so it resumes stop mo...

ibrahim by Associate II
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  • 2 replies
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udp packet sender

Posted on May 01, 2017 at 15:08I've implemented on my board the UDP packet server as a task for a board which has to support ethernet, but nothing is defined for the interface.  So far so good.  I send UDP packets to it and it receives and echoes th...

SPI questions

Posted on November 27, 2016 at 23:40I'm using F3 and L4 processors and have a few spi questions1)  In half-duplex mode, how do you receive a single byte with a master ?  two bytes ?  It appears from reading that in this case, the SPI clock runs as l...

Geoffrey1 by Associate III
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  • 9 replies
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USB get slowly by time

Posted on April 29, 2017 at 10:54Hello, I'm using stm32f407vgt6 and I'm sending data from computer(host) to the MCU(device) through USB in FS mode using CDC library, The total data size is 8MByte and I'm sending it 4KByte by 4KByte (2048 times). Wha...

UART problem betwen stm32f407 and fpga

Posted on April 30, 2017 at 10:03Hello,i have a design where a fpga sends a packet of 10bytes at a baud of 57970 to USART2 of the stm32f407VE device.The idea was to use USART2  where RX pin is receiving data from the fpga,  and the TX pin sends the ...

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Bogdan by Senior
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  • 5 replies
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