medium10 pts · first answer countsembedded-clinker

Putting a buffer in a special RAM

An STM32H7 needs a DMA buffer in the D2 SRAM, which the linker script maps to a section called .dma_buf. How is the buffer placed there with GCC?

A.static uint8_t buf[512] __attribute__((section(".dma_buf")));B.static uint8_t buf[512] __attribute__((aligned(".dma_buf")));C.static volatile uint8_t buf[512]; /* volatile picks the RAM */D.#pragma pack(".dma_buf") static uint8_t buf[512];

Discussion 0

Join free to post in the discussion.

Putting a buffer in a special RAM

Discussion 0

Related questions