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Alternative Function

Posted on February 18, 2016 at 09:48Hi i wonder if it is possible to read the changes on the GPIO pin where the GPIO pin is configured as GPIO_Mode  = AF pin mode.  on f429?

arunl4g by • Associate II
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STM32F4, HAL Lib, USART IRQ

Posted on February 10, 2016 at 09:40 Hi all, I'm working with STM32F4 mcu and keil uVision 5 IDE. I'm tryng to configure RS232 periph. but I have a problem. Transmission works fine but I'm not able to receive interrupt when something is recei...

tommaso by • Associate II
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  • 10 replies
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USB transfer multiple of packet size

Posted on June 14, 2014 at 15:30I don't know whether this is related to the STM32CubeF4 package or the STM32F407 so I'll post here.I'm using the STM32F4 discovery board and the onboard USB FS port.I wrote a VCP interface that lets me send a buffer o...

shippo by • Associate II
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Upgrade from USB Host Library 2.0.0 to 2.1.0

Posted on June 24, 2014 at 18:02Hi guys,I recently upgraded my USB Host libary in one of my programs from version 2.0.0 to version 2.1.0 and it seems to have broken something. When I try to read a file from my USB Flash drive using FatFs, it crashes...

Why I can't use PA0 to get the function generator signal?

Posted on February 18, 2016 at 03:32I used a function generator send a signal to PA1, if PA1 get the high signal that let LED on. But my program can't work correctly. Always high or always low, depend on GPIO_Mode = IPU or IPD. Below are my program,...

SWD and JTAG

Posted on February 17, 2016 at 16:44I built my own board and I am trying to use the JTAG connections. It does not seem to work. It only uploads  a small percentage of time and even when it does, I am not to sure it is uploading correctly. I thought ...

achin by • Associate II
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  • 5 replies
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JTAG without NJTRST

Posted on February 16, 2016 at 08:16Hello there, I have a general question regarding the NJTRST signal in a JTAG protocol. In STM32 datasheets, I read that JTAG can operate with only 4 pins, without NJTRST. I only assume it then uses regular #RESET ...

STM32F407VG with PS/2 Keyboard - project

Posted on February 17, 2016 at 11:48Hi, I'm second year student at UTP in Poland. I have to do project based on STM32F407VG. It's just simply communication with keyboard. But I have problem - power on my keyboard. I read that to power PS/2 I have t...

mich by • Associate
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  • 3 replies
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STM32F405 I2S3 problem

Posted on February 17, 2016 at 17:58Hello,I'm having a problem after enabling I2S3 in master receive mode, for aquiring data from a mems mic.After calling HAL_I2S_Receive_DMA(), all other DMAs go to RESET state (all of them were READY).I tracked dow...

fb2 by • Associate II
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Measure 2 signals on TIM2 CC1, CC2

Posted on February 17, 2016 at 00:15Hi, On this link there's an example piece of code: https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https%3a%2f%2fmy.st.com%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcorte...

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