1 reply to this topic

[yan_lin_aung]

Hi

What is the difference between "extern void *ext0_alloc(size_t);" and "extern void *alloc_shared(size_t);"?
If I want to use co_memory for DMA transfer on the PLB bus, which function should I use and how to use it?
Thanks.


With regards

Yan Lin Aung

[RalphBodenner]

Both functions must be written by the Impulse C programmer, to define how the shared memory is allocated by the CPU. The functions are invoked automatically by co_memory_create() when running on the CPU target (MicroBlaze or PowerPC, for example).

Please see the section "Shared Memory Features" in the Help file for either Xilinx Platform Support Package (Help > Platform Support Package Help menu in CoDeveloper).

Regards,
Ralph