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Multibuffer communication for STM32L4 UART

Posted on June 29, 2017 at 06:35I am looking for a method to build uart rx/tx circular buffers for STM32L476 which communicate using DMA. In 40.5.2 of http://www.st.com/content/ccc/resource/technical/document/reference_manual/02/35/09/0c/4f/f7/40/03...

STM32F207 USB HPOST fail after reconnect

Posted on March 22, 2015 at 17:50I found the problem. When I quickly connecting/disconnecting USB device(LS HID mouse)  from STM32F207 USB host FS port the occurs another situation: USB constroller  stop generate host channel and/or port/disconnect ...

Resolved! Understanding TIM DMA_Handle_index

Posted on June 27, 2017 at 15:02Hi.I'm trying to use DMA to  drive PWM output for led effects. MCU write seems to be OK, however there's few very weird consepts related to DMA configuration I don't seem to be able to wrap my head around.void HAL_TIM...

Resolved! HOW to let CAN1 using all 28 filter banks?

Posted on June 28, 2017 at 03:19Dear allUseing CAN1 of STM32F205, 32-bit Mask Mode filter, filter bank 0-13 work all right for now. Then I am trying to configurate CAN2SB = 28d, for letting CAN1 use all 28 filter banks.But it doesn't work, here is m...

Jack Li by Associate
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ADC Hang on STM32L051C8T3

Posted on June 26, 2017 at 01:13I am experiencing some issues with the ADC on my L0. I configure it with PCLK as the input clock in CKMODE, start it up, and take a sample. Everything works fine. I then decide to set the oversampling mode (which is i...

STM32 ST-Link Utility - bug?

Posted on June 24, 2017 at 23:53I use a debugger of ST-Link and STM32 ST-Link Utility, I try to read 128K of the microcontroller flash-memory from the address 0x08020000. But STM32 ST-Link Utility reads only to the address 0x0802E000 - further the u...

mak1308 by Associate III
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STM32F0 IrDA not work at all

Posted on June 28, 2017 at 13:39Hi, every one.I am trying to get data from IrDA SIR mode on STM32F092.I setup that USART Port 2 is sending IrDA packet and USART Port 1 is receiving ( it similar to loop-back, wired USART2 TX and USART RX )I can see t...

How fast can I counter using external interrupt?

Posted on June 28, 2017 at 13:21Hi everyoneI'm usging STM32F103VE @72MhzI wonder how fast can I counter using external interrupt?These days I try to count clock signal by EXTI. ( clock signal is 10 Mhz) Is it possible?If impossible then, what is lim...

Shin KS by Associate
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spi ,i2c,uart interface with stm32vl discovery board

Posted on June 28, 2017 at 13:47hi i am new to stm32. i have purchased stm32vl discovery board recently. i would like to interface 2 UARTS ,2 spi and one i2c peripherals together with the board .how can i do it using interrupts can any one help me o...