This tag relates to the Master Direct Memory Access controller, found in some STM32 micro-controllers.
Questions tagged [mdma]
3 questions
1
vote
2 answers
MDMA & internal FLASH R/W on STM32H7
Good morning,
We're using an STM32H7 to acquire simoultaneously 3 ADC channels 16-bit @ 5MSPS, and we store data in an external eMMC. Everything worth seamlessly as follow :
3 slave-SPI with 3 DMA to internal flip/flop buffers ; MDMA to interleave…
Clément G.
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0 answers
To transfer the Img_Data[128*128*2] to the middle of Img_Buff[720*576*2] using MDMA Transfer in BF609 Processor
By using the below code I could able to get the data transferred to the middle of the buffer but in liner(1D) condition only.
memcpy_all(Img_Data, 128, 128, 16, 16, Img_Buff+323152, 128, 128, 16, 16);
What I need is to transfer the data in 2D to…
Naveen
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- 2
0
votes
1 answer
Can the STM32H743's FMC drive a 16-bit 8080 bus faster than 1.6MHz when clocked at 480MHz?
I'm using the FMC of the STM32H743 to drive a 16-bit 8080-bus LCD controller.
I've tried using DMA, MDMA and a CPU-loop to transfer data to the 8080-bus, via the FMC.
The transfer frequency does not depend on whether DMA, MDMA or CPU-loop is used. …
fadedbee
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