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Forum Posts

USB CDC library for stm32f042k6t6

Posted on July 29, 2017 at 11:52Hello, I am trying to use stm32f042k6t6 MCU and I want to use the USB peripheral implemented in it. Could someone suggest me a USB CDC library I can use with this MCU to connect with PC, I am using the standard periph...

Resolved! ADC not scanning all channels

Posted on July 27, 2017 at 12:14Perhaps the title is wrong, but my code behaves like this: I have configured 4 channels to be converted in the ADC; I have put a variable which increments inside ADC irq EOC (EOC_Counter) and another which increments ...

ionutF by Associate III
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  • 2 replies
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STM32F334 embedded reference voltage

Posted on August 01, 2017 at 16:53Hello,Included attachement consists screen of internal reference parameters presented in datasheet.I think there is mistake because Vdd=31.8V seems not correct.I try to calculate how accurately can determine Vdda vo...

How to check from firmware whether SD card inserted in slot ?

Posted on July 31, 2017 at 18:48Hi, engineers. I am currently working on project, containing SD card. My HW is custom chinese board with STM23f407VET6 mounted and microSD slot connected to SDIO (proper pullup resistors seem to be in place). I made s...

vadim2 by Associate II
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  • 5 replies
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Resolved! HAL_SPI_TransmitReceive_DMA (STM32_FW_V1.7.0)

Posted on July 31, 2017 at 22:35In STM32Cube_FW_F7_V1.7.0/Projects/STM32746G-Discovery/Examples/SPI/SPI_FullDuplex_ComDMA example shows a simple DMA transfer with data cache on.  How can aRxBuffer buffer can be updated correctly without a region def...

How works the function HAL_SAI_Transmit_DMA()

Posted on July 26, 2017 at 09:58Hi Communities, can any body please explain me, how works exactly the function HAL_SAI_Transmit_DMA(). I am using STM32F746VGTX.This is one example:uint8_t TestArray[4] = {0x00,0xff,0x00,0x00};HAL_SAI_Transmit_DMA(hsa...

Internal Working of SPI?

Posted on July 26, 2017 at 12:15Hi,When i checked on DSO  (scope)  i found that after chip select SPI_NSS latch to ground.there in clock signals on clk pin.there is no data on SI and SO pin.Why there no data on SPI's Pin?Why SPI_NSS latch to ground?...

STM32F07X using DMA transmit UART fail

Posted on August 01, 2017 at 04:08First, I introduce the background simply. I have program the STM32F072RB for somedays. I do this project start with STM32CubeMX. It�s going well until now. I have using the 2 DMA for SPI transmit before. And I want ...

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AMP HF by Associate II
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  • 7 replies
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