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| author | Clifford Wolf <clifford@clifford.at> | 2015-06-08 19:58:28 +0200 |
|---|---|---|
| committer | Clifford Wolf <clifford@clifford.at> | 2015-06-08 19:58:28 +0200 |
| commit | 0257d2cb089e39df53e861e48e6363d9569d2dbd (patch) | |
| tree | 61bcc52351d1dc864fa29b2b89c1afb484663871 | |
| parent | 072e5ca2c5f826fa263d31b808774e18bc02abd0 (diff) | |
| download | picorv32-0257d2cb089e39df53e861e48e6363d9569d2dbd.tar.gz picorv32-0257d2cb089e39df53e861e48e6363d9569d2dbd.zip | |
Small improvements in vivado_soc demo
| -rw-r--r-- | scripts/vivado/synth_vivado_soc.v | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/scripts/vivado/synth_vivado_soc.v b/scripts/vivado/synth_vivado_soc.v index 0b92d39..e36b7fb 100644 --- a/scripts/vivado/synth_vivado_soc.v +++ b/scripts/vivado/synth_vivado_soc.v @@ -11,7 +11,8 @@ module test_soc ( output [31:0] monitor_addr, output [31:0] monitor_data ); - parameter MEM_SIZE = 64*1024/4; + // 4096 32bit words = 16kB memory + parameter MEM_SIZE = 4096; wire mem_valid; wire mem_instr; @@ -50,16 +51,14 @@ module test_soc ( assign monitor_data = mem_wstrb ? mem_wdata : mem_rdata; reg [31:0] memory [0:MEM_SIZE-1]; - initial $readmemh("../firmware/firmware.hex", memory); + initial $readmemh("firmware.hex", memory); assign mem_ready = 1; assign out_byte = mem_wdata[7:0]; always @(posedge clk) begin out_byte_en <= 0; - if (mem_la_read) - mem_rdata <= memory[mem_la_addr >> 2]; - else + mem_rdata <= memory[mem_la_addr >> 2]; if (mem_la_write && (mem_la_addr >> 2) < MEM_SIZE) begin if (mem_la_wstrb[0]) memory[mem_la_addr >> 2][ 7: 0] <= mem_la_wdata[ 7: 0]; if (mem_la_wstrb[1]) memory[mem_la_addr >> 2][15: 8] <= mem_la_wdata[15: 8]; |