这张线卡也连接了SFP1(RX0A)和SFP4（RX1A），下面是四个通道的调试信息：
finsh>>show_cdr()                                                               
Horizontal and Vertical Eye:HEO_UI=val/32,VEO_mV=val*3.125                      
CH 0:                                                                           
HEO_UI=21 ,VEO_mV=62                                                            
CTLE boost value=2                                                              
Status reg[0x78]=0x30[5:SD,4:LCK]                                               
ch reg[0x31]=0x60, bit6:5-adapt mode                                            
adapt3:CTLE until lock,then dfe,the eq                                          
ch reg[0x1e]=0xe9, bit3-DFE switch                                              
DFE disable                                                                     
Main:0xc[6:Sign,5-0:mag]                                                        
Post:0xc0[6:Sign,5-0:mag]                                                       
Pre:0x40[6:Sign,5-0:mag]                                                        
CH 1:                                                                           
HEO_UI=0 ,VEO_mV=0                                                              
CTLE boost value=165                                                            
Status reg[0x78]=0x0[5:SD,4:LCK]                                                
ch reg[0x31]=0x60, bit6:5-adapt mode                                            
adapt3:CTLE until lock,then dfe,the eq                                          
ch reg[0x1e]=0xe9, bit3-DFE switch                                              
DFE disable                                                                     
Main:0xc[6:Sign,5-0:mag]                                                        
Post:0xc0[6:Sign,5-0:mag]                                                       
Pre:0x40[6:Sign,5-0:mag]                                                        
CH 2:                                                                           
HEO_UI=25 ,VEO_mV=70                                                            
CTLE boost value=0                                                              
Status reg[0x78]=0x30[5:SD,4:LCK]                                               
ch reg[0x31]=0x60, bit6:5-adapt mode                                            
adapt3:CTLE until lock,then dfe,the eq                                          
ch reg[0x1e]=0xe9, bit3-DFE switch                                              
DFE disable                                                                     
Main:0xc[6:Sign,5-0:mag]                                                        
Post:0xc0[6:Sign,5-0:mag]                                                       
Pre:0x40[6:Sign,5-0:mag]                                                        
CH 3:                                                                           
HEO_UI=0 ,VEO_mV=0                                                              
CTLE boost value=165                                                            
Status reg[0x78]=0x0[5:SD,4:LCK]                                                
ch reg[0x31]=0x60, bit6:5-adapt mode                                            
adapt3:CTLE until lock,then dfe,the eq                                          
ch reg[0x1e]=0xe9, bit3-DFE switch                                              
DFE disable                                                                     
Main:0xc[6:Sign,5-0:mag]                                                        
Post:0xc0[6:Sign,5-0:mag]                                                       
Pre:0x40[6:Sign,5-0:mag]                                                        
        0, 0x00000000