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authorMatt Ettus <matt@ettus.com>2010-07-19 13:33:32 -0700
committerMatt Ettus <matt@ettus.com>2010-07-19 13:33:32 -0700
commited11f715c45ad129600e20849254e3899407002a (patch)
tree7adeb2a8b8ae84a409d09683327abc3107332c23 /usrp2
parenteddfcda0a2c84edd4818836e812c6a95ea44cb99 (diff)
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proper selection of bank of ram for instruction, since the address
has already incremented by the time the data is returned
Diffstat (limited to 'usrp2')
-rw-r--r--usrp2/control_lib/bootram.v6
1 files changed, 5 insertions, 1 deletions
diff --git a/usrp2/control_lib/bootram.v b/usrp2/control_lib/bootram.v
index 5e527de90..668012504 100644
--- a/usrp2/control_lib/bootram.v
+++ b/usrp2/control_lib/bootram.v
@@ -21,8 +21,12 @@ module bootram
wire [31:0] DOB0, DOB1, DOB2, DOB3;
wire ENB0, ENB1, ENB2, ENB3;
wire [3:0] WEB;
+
+ reg [1:0] delayed_if_bank;
+ always @(posedge clk)
+ delayed_if_bank <= if_adr[12:11];
- assign if_data = if_adr[12] ? (if_adr[11] ? DOA3 : DOA2) : (if_adr[11] ? DOA1 : DOA0);
+ assign if_data = delayed_if_bank[1] ? (delayed_if_bank[0] ? DOA3 : DOA2) : (delayed_if_bank[0] ? DOA1 : DOA0);
assign dwb_dat_o = dwb_adr_i[12] ? (dwb_adr_i[11] ? DOB3 : DOB2) : (dwb_adr_i[11] ? DOB1 : DOB0);
always @(posedge clk)