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Forum Posts

When does ADC/DMA actually stop?

Posted on January 05, 2017 at 15:20In my project (F415RG) I'm running timer paced single channel ADC sampling with DMA transfers and Analog Watchdog coupled to the same ADC channel. When an out of window voltage occur I need to momentarily stop the ...

parsec by Associate III
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Is ADC sampling clock equal to system clock ?

Posted on December 30, 2016 at 13:40hello dear forum,I am trying to take 500 samples from STM32F103RC ADC with DMAI wanna know if the ADC sampling clock equal to ADC clock or system clock for example ;If I choose ADC clock = P2clock / 8 = 9 MHz and ...

GPIO interrupt problem

Posted on January 04, 2017 at 19:52Hi everybody.I have to implement a Wiegand reader on a STM32 demo board.Using CubeMX I have defined 2 gpios as GPIO_EXTI and now the HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) is triggered.The problem is that the ca...

Resolved! STM32F3 two ADC with DMA transferred data mixup [SOLVED]

Posted on November 22, 2016 at 09:43Hallo,I am trying to solve this problem that I am facing with ADC and DMA use.I use a STM32F303 Microcontroller, with CubeMX vers4.17 and Eclipse.I was able to test and use all the peripherals I needed but I encou...

leonardo2 by Associate II
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SPI DMA FIFO Error on SDRAM

Posted on December 20, 2016 at 19:20Hi,I'm working on 3-Wire(PF7-CLK,PF9-MOSI,PF8-MISO) SPI (SPI5, slave mode, direct mode) using a STM32F769-EVAL.My goal is to transmit data from SDRAM buffer thru SPI to SPI-MasterI'm using 'HAL_SPI_Transmit_DMA' f...

ys1 by Associate II
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UART only one byte received

Posted on January 04, 2017 at 00:52 Hi Guys, I am transmitting two bytes between two nucleo boards on uart1 and only receiving one byte (one charachter)? what could be the problem HAL_UART_Receive(&huart1,(uint8_t *)data3,5,10);  void MX_USART1...

Raider E by Associate III
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HAL UART buffer overflow bug(?)

Posted on January 04, 2017 at 17:56Hi all,I'm wrestling with a couple problems with UART interrupt receive. Processor is STM32F745IET6 on a custom board. Startup code is generated using CubeMX 4.18.0 and HAL library version 1.5.1. (This all seems to...

hbarta2 by Associate III
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How to manage a 2x16 lcd display.

Posted on December 23, 2016 at 12:44I have to manage a 2x16 display using a M4 microcontroller. Is there a library based on HAL or have I to write it?Sorry but I'm a beginner with M4 and HAL library.

Resolved! Function to check EXT_0 or any EXT_X interrupt status?

Posted on January 04, 2017 at 02:11Does HAL library has any function that can check for the interrupt status on any given EXT line?  For example,I have configured:    HAL_NVIC_SetPriority(EXTI0_1_IRQn, 0, 0);    HAL_NVIC_EnableIRQ(EXTI0_1_IRQn);Now ...

Vu.Andy by Associate III
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