Hello Guys,
I am working on some verfication of the SoC IP. To verify these IP we are implementing it on FPGA. I am facing an strange problem.
One of the IP which i have implemented as Master and slave AHB interface. Since the AMBA interface i am having is a multiplexed bus i need to multiplex the master and slave interface signal. So to do that i am using grant signal of AHB to multiplex common signal (of master and slave). But the problem is in slave mode (grant signal is zero), external HBURST[2:0]=000 (seen through logic analyzer), i have tapped the internal HBURST to test point, i observed that the tapped internal signal value is different from the external HBURST.
Internally i am connecting the HBURST to slave HBURST port and to multiplex HBURST i am using the below assign for master mode
assign SGNTi = HGRANT[2];
always @(posedge iHCLKBUF or negedge nSYSRST) begin : p_MasterEnable if (nSYSRST == 1'b0) AHBMasterEnable