static char ethmass[160];
for (i = 0; i < 160; i++)
ethmass[i] = i;

eth_ocm_raw_send(ethmass, sizeof(ethmass));

0000 00 01 02 03 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13
0010 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23
0020 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33
0030 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43
0040 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53
0050 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63
0060 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73
0070 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81 82 83
0080 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f 90 91 92 93
0090 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f

int eth_ocm_raw_send(char * data, unsigned data_bytes)
{
alt_u8 *buf;
int result;
int i=0;
result=0;
if (sem)
{
return 1;
}
else
{
sem=1;
buf = (alt_u8 *)alt_remap_cached( (volatile void *)data, 4);
if(data_bytes < ETH_OCM_MIN_MTU)
result = 2; //packet too small
if(data_bytes > ETH_OCM_MAX_MTU)
result = 3; //packet too big
if(IORD_ETH_OCM_DESC_CTRL(ETH_OCM_0_BASE, 0) & ETH_OCM_TXDESC_READY_MSK)
result = 4; //DMA not available
if(!result)
{
IOWR_ETH_OCM_DESC_PTR(ETH_OCM_0_BASE, 0, (unsigned int)buf);
IOWR_ETH_OCM_DESC_CTRL(ETH_OCM_0_BASE, 0, (data_bytes << ETH_OCM_TXDESC_LEN_OFST) | ETH_OCM_TXDESC_READY_MSK | ETH_OCM_TXDESC_WRAP_MSK );
}
do
{
result = IORD_ETH_OCM_DESC_CTRL(ETH_OCM_0_BASE, 0);
++i;
}
while((result & ETH_OCM_TXDESC_READY_MSK) && i<ETH_OCM_TRANSMIT_TIMEOUT);
if(i<ETH_OCM_TRANSMIT_TIMEOUT)
{
if(result &
(ETH_OCM_TXDESC_UR_MSK |
ETH_OCM_TXDESC_RL_MSK |
ETH_OCM_TXDESC_LC_MSK |
ETH_OCM_TXDESC_CS_MSK))
{
result = 5;
}
else
{
if(result & ETH_OCM_TXDESC_RTRY_MSK)
{
result = 0;
}
}
}
else
{
result = 6;
}
sem=0;
return result;
}
}

int tse_mac_raw_send(char * data, unsigned data_bytes)
{
unsigned length = data_bytes;
unsigned tx_length;
unsigned int* ActualData;//pointer to the transmitting data
ActualData = (unsigned int*)alt_remap_cached ((volatile void*) data, length);
alt_u32 com_control=0;
com_control = IORD_ALTERA_AVALON_SGDMA_STATUS(SGDMA_TX_0_BASE);
if( length > ALTERA_TSE_MIN_MTU_SIZE )
{
/* make sure there is room in the FIFO. */
alt_avalon_sgdma_construct_mem_to_stream_desc( //&transmit_descriptors[buffer_counter]
/*(alt_sgdma_descriptor *)*/ &desc[0], // descriptor I want to work with
/*(alt_sgdma_descriptor *)*/ &desc[1], // pointer to "next"
(alt_u32 *) ActualData, // starting read address
(length), // # bytes
0, // don't read from constant address
1, // generate sop
1, // generate endofpacket signal
0); // atlantic channel (don't know/don't care: set to 0)}
}
tx_length = tse_mac_sTxWriteM(desc);
}

0000   02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11
0010   12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21
0020   22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31
0030   32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41
0040   42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51
0050   52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61
0060   62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71
0070   72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f 80 81
0080   82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e 8f 90 91
0090   92 93 94 95 96 97 98 99 9a 9b 9c 9d 9e 9f