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Questions tagged [cortex-m7]

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STM32H7 CortexM4 DMA issue

I'm trying to use USART + RTS only + DMA(non circular, peripheral to memory, DMA1 Stram0) on STM32H755ZIT6's M4 processor. I and D caches are enabled. My code is working on M7 but it does not works ...
Alatriste's user avatar
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STM32H7 UART DMA Issue

I have two MCUs, first one is STM32F070F6P6 which sends data over USART2 TX DMA and second one is STM32H755ZIT6 which receives data over USART2 RX DMA. Also notice that STM32F070F6P6's TX Pin ...
Alatriste's user avatar
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Data coherency with DMA and I2S audio on STM32H7

Moving from a audio effect prototype based on the STM32F407 to the STM32H757. Did a lot of stuff on the F4 with audio but on the H7 I'm getting stuck and can't get a simple audio loopback with DMA. I'...
Alefal's user avatar
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Resizing a vector with ARM CMSIS DSP on Teensy 4.0 (Cortex M7)

I have the following code that does the resizing of a 1D vector with nearest neighbor interpolation in a similar fashion you'd also resize an image, only in 1D rather than 2D. Another term would be ...
Max Walczak's user avatar
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STM32H743 MDMA can't access APB2

I have a code that mdma can access any variable feed to it by &var (AXI SRAM) also I have gave it an address of ADC common registers from APB1 but adress from APB2 &hrng.Instance.DR causes ...
mohammadsdtmnd's user avatar
4 votes
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STM32 Software Interrupt Trigger Any

STM32F746-Disco Windows 10 STM32CubeIDE 1.8.0 I've just finished writing my first minimal bare metal UART DMA driver (CMSIS only), and both reception and transmission work ok, but then I thought I ...
Ilya's user avatar
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SAM S70 Microcontroller - Need to use 2 functions on one pin

I need to connect a SAM S70 (ARM® Cortex®-M7 based microcontroller) to both a camera and an eMCC FLASH. The problem is that the PA27 pin has both MCDA3 and ISI_D7 as PIO Peripheral functions. How do ...
jmadsenee's user avatar
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2 answers
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In STM32 the timers are connected to which bus?

I am using STM32H723ZG and in our application, I wanted to know to which bus (APB1 or APB2) the timers are connected. I need these detail, as I have to configure the timer to that particular bus's ...
Boovaragan's user avatar
1 vote
1 answer
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STM32F769 disco board max frequency

On my STM32F769I Discovery board I tried BlinkLED example, using Eclipse IDE (xPack toolchain, OpenOCD, ...). Debugging fails when frequency was adjusted (original code) to 192 MHz (later on boosted ...
Djole's user avatar
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STM Cortex M7 memory map

I suppose this is simple one, but for me as first time reader of STM32F769 datasheet it is confusing. Memory map in this datasheet declares ITCM RAM at zero address, while this programming manual (pg. ...
Djole's user avatar
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Flash programming for a custom design with SAME70

How can I add flash programming capabilities to a custom-design board witg the SAME70 or SAMV71? For example, with the UC3-A3 (AVR32), I just expose TDI, TDO, TCK, TMS, RESET, GND/VDD, and voila: I ...
Cal-linux's user avatar
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