Hi, I am trying to simulate in hardware the practice number 5. I have a BV card. The results I got when simulating in Workbench are correct, however when simulating with the card I never got any packages to count. I must say that I have simulated in hardware practice 3 (writing an array to memory and reverse it) and everything worked fine, I even used a tool from Georgia Tech to look at the memory of the board to double check the results. So here is what I have investigated until now, the value of rcv_rdy_lo when simulating only with Workbench is x1, x2, x4 and x8 when feeding packets in ports 1,2,3 and 4. Up to here is correct. When I change to hardware and after loading ue.o , running rs_udebug and assigning MACs through octmac.o the rcv_rdy_lo behaves incorrectly. It gives x200, x400, or x800 for packets arriving at ports 2, 3 and 4 (and nothing when feeding in port 1). I got a document indicating this problem has to do with an different distribution of MACs in the IX-Bus and instructed to me to apply these corrections: Replace the config_1200.cpp located in /opt/ixasdk/src/microace/common/wbench/SA1_CoreLibs/app_1200/ Replace board.h a located in /opt/ixasdk/enp-2505/src/linuxIXAedu/include/asm-arm/arch-ixp1200 Recompile kernel and octmac module cd /opt/ixasdk/enp-2505/src/linuxIXAedu make oldconfig make dep make zImage cd /opt/ixasdk/src/microace/aces/interface_ace/source/driver/octdrv/ make make install I verify zImage and octmac.o were updated, but I got the same results. It seems the corrections are not working. The last test I did was to modify the practice five writing the counters to SRAM instead to scratch, so I can inspect the memory with the Georgia Tech tools, but I got the same results. No packets are count. Any help or tip to solve this problem is very appreciated. Ricardo Camarena Ramos Asistente de Investigación Departamento de Ingeniería Eléctrica y Electrónica División de Profesional y Graduados, Campus Estado de México Premio Nacional de Calidad 1998 Teléfono: (5255)5864.5555 x 3208, 5864.5660 camarena@itesm.mx enlace-intercampus: 80.236.3208, www.cem.itesm.mx Tecnológico de Monterrey, 60 AÑOS COMPROMETIDOS CON LA EXCELENCIA EDUCATIVA Hoy mejor que ayer, y mañana mejor que hoy.