Statically allocate frame buffers.

[cmair]

Static allocations allow the linker to check for possible memory overruns on big displays.

Note: this does not guarantee there's enough memory for the application, other parts could still try to allocate dynamic memory and fail.

[JuPfu]

Hi Cristoph,

when using DMA, it is advisable to ensure 4-byte alignment (word alignment). I just looked it up—this can be achieved by adding the aligned attribute to the modified instructions (see example).

static uint8_t frame_buffer1[(TOTAL_PIXELS >> 1) * bcm_sequence_length] __attribute__((aligned(4)));

Kind regards,
Jürgen