About Broyildiz

Broyildiz · 2020-04-05

My goal is to transfer the contents of an integer array (8 bits per value) to 8 GPIO pins.Using the CubeMX perspective in the CubeIDE (latest version) I configured the DMA2 to work with Timer1 in the memory to peripheral mode. I am using the STM32 F4...

Broyildiz · 2020-04-06

Thanks, I tested it and edited my post.Broyildiz

Broyildiz · 2020-04-06

Your help has been amazing @berendi .Below is the code that works and its explanation.It takes the values inside the array (8 bits per value) and maps them onto the 8 GPIO pins.#define BUFLEN (512) uint8_t dmabuf[BUFLEN]; int i; for(i=0; i<BUFLEN; i...

Broyildiz · 2020-04-06

You are correct, it does push the values to the GPIO pins!But to the wrong pins. The debugger shows me that the values are pushed to GPIO pins 0-7, not to 8-15.The pins 8-15 are configured as output pins. I tried to change the address ofDMA2_Stream5...

Broyildiz · 2020-04-05

I looked it up in the Referance ManualRCC->APB2ENR |= RCC_APB2ENR_TIM1EN;It did not work.I am using the auto generated HAL code to set the clock configuration before any of this code runs.I do not think that that is the issue, because I setup the clo...

Broyildiz · 2020-04-05

The code looks very promising, sadly there is an error.RCC->APB2EN |= RCC->APB2_TIM1EN;Two problems:there is no struct member RCC->APB2ENCubeIDE does find: RCC->APB2ENRThere is also no RCC->APB2_TIM1ENExcept for this one line it does compile.

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How to setup DMA to GPIO transfer using HAL in the CubeIDE?

Re: How to setup DMA to GPIO transfer using HAL in the CubeIDE? My goal is to transfer the contents of an integer array (8 bits per value) to 8 GPIO pins.

Re: How to setup DMA to GPIO transfer using HAL in the CubeIDE? My goal is to transfer the contents of an integer array (8 bits per value) to 8 GPIO pins.

Re: How to setup DMA to GPIO transfer using HAL in the CubeIDE? My goal is to transfer the contents of an integer array (8 bits per value) to 8 GPIO pins.

Re: How to setup DMA to GPIO transfer using HAL in the CubeIDE? My goal is to transfer the contents of an integer array (8 bits per value) to 8 GPIO pins.

Re: How to setup DMA to GPIO transfer using HAL in the CubeIDE? My goal is to transfer the contents of an integer array (8 bits per value) to 8 GPIO pins.