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Altera_Forum's avatar
Altera_Forum
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8 years ago

Speed up data-transfer between Host and Device

Is there a way to speed up the data transfer between Host(ARM) and Device(CYCLONE V)? I need to load an uchar array of the size 672 x 2993 to the FPGA -> compute on this array -> get results fr...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Replacing 

*src_ptr = *img.data;
with 

memcpy ( src_ptr, img.data, sizeof(uchar) * size_cols * size_rows);

worked but know it have a copy in my code again (no improvement in regards to runtime). Using this 

src_ptr = img.data;

Gives an empty output (as always). Do you have an idea how to handle it without the memcpy-function? Thanks