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I2C slave transmit in interrupt mode

Hi all,I do have a problem with I2C slave transmit mode. Everytime the master (in my case an FTDI FT4222) starts a read access I get the error ACKNOLEDGE FAILURE.If I just transmit from a PC to the STM32 everything works fine and I receive the correc...

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SZank by Associate II
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Resolved! How to read gpio using dma in Input Capture mode

Hi,I want to  configure the DMA so that it transfers data from the GPIO lines (8 bit data lines) to the RAM buffer upon receiving a trigger signal on the timer capture input channel TIM1_CHI (PE9) . I am using stm32f446ze.We nees to acquire data regi...

Amal Babu by Associate III
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Early waking Up from STOP mode

Dear,I use SM32L152, I go to STOP mode regularly and as the possible source of waking up is either RTC or External interrupt. It works Fine until I change the System clocks from MSI 4 MHz to for example HSI on 16 MHz. If I change it, then MY MCU is w...

JAN R by Associate III
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UART DMA TX/Rx problem w/ STM32F722 example

Posted on February 14, 2018 at 01:55Hello,I have a program using serial UART communicatons. I based the UART code on the example code UART_TwoBoards_ComDMA.  The system seems to work correctly when it is in command/response mode.  That means, I can ...

Reading 2 ADC Channels and Outputting Over USART

I'm new to working with STM32's so if I make any mistakes please let me know. I have the STM32F446RE Nucleo board and I'm trying to read two ADC channels (IN15 on GPIOC_05 and IN14 on GPIOC_04) and output the ADC values over USART 1 channel as fast ...

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PAbdu by Associate II
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How to flash custom Sigfox credentials

Hi,I am working on a custom device, based on Murata CMWX1ZZABZ, running both Sigfox and LoRa.Regarding Sigfox, I would like to use my own Sigfox Credentials, acquired direclty from Sigfox (not from Murata). However, the only documented process I can...

Slan by Associate II
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  • 3 replies
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How to set VTOR in startup script

I'm using an ST part that has 2 banks of flash memory. I've built a code image for the second bank and downloaded it through the debugger. I've changed the startup script to set the VTOR register to the value needed for the second bank, with the line...

LThal by Associate II
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  • 1 replies
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