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Altera_Forum's avatar
Altera_Forum
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12 years ago

TSE MAC and SGDMA

Hi there, I am using TSE MAC and SGDMA to capture a network frame,i am facing a issue related to receive frame. Let me first clear my receive flow. 1)open the SGDMA by "alt_avalon_sgdma_ope...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

temp_ptr_rx = malloc((number_of_buffers + 2) * ALTERA_AVALON_SGDMA_DESCRIPTOR_SIZE);

if(temp_ptr_rx == NULL)

{

printf("Failed to allocate memory for the receive descriptors\n");

return 1;

}

*receive_descriptors_copy = (alt_sgdma_descriptor *)temp_ptr_rx;

this is the simple code to allocate memory for descriptor