STC micro STC8A8K64D4 Series - Page 682

STC8A8K64D4 Series Manual
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0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D,
0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C,
0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634,
0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB,
0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3,
0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A,
0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92,
0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9,
0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1,
0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8,
0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0
};
u16 crc16 = 0x0000;
u16 crc_h8, crc_l8;
while( len-- ) {
crc_h8 = (crc16 >> 8);
crc_l8 = (crc16 << 8);
crc16 = crc_l8 ^ crc16_ccitt_table[crc_h8 ^ *pbuf];
pbuf++;
}
return crc16;
}
void main(void)
{
u16 i;
u16 CheckSum;
P0M1 = 0x00; P0M0 = 0x00; //set as quasi-bidirectional port
P1M1 = 0x00; P1M0 = 0x00; //set as quasi-bidirectional port
P2M1 = 0x00; P2M0 = 0x00; //set as quasi-bidirectional port
P3M1 = 0x00; P3M0 = 0x00; //set as quasi-bidirectional port
P4M1 = 0x00; P4M0 = 0x00; //set as quasi-bidirectional port
P5M1 = 0x00; P5M0 = 0x00; //set as quasi-bidirectional port
P6M1 = 0x00; P6M0 = 0x00; //set as quasi-bidirectional port
P7M1 = 0x00; P7M0 = 0x00; //set as quasi-bidirectional port
for(i=0; i<256; i++)
{
DMABuffer[i] = i;
}
P_SW2 = 0x80;
DMA_UR1T_STA = 0x00;
UART1_config(1);
printf("UART1 DMA CRC Programme!\r\n");
DMA_Config();
EA = 1; //enable CPU interrupt
DMATxFlag = 0;
DMARxFlag = 0;
while (1)