diff options
Diffstat (limited to 'fpga/gpmc')
| -rw-r--r-- | fpga/gpmc/xilinx/common/main.v | 6 | ||||
| -rw-r--r-- | fpga/gpmc/xilinx/numato/spartan6/xc6slx9/main.ucf | 2 |
2 files changed, 7 insertions, 1 deletions
diff --git a/fpga/gpmc/xilinx/common/main.v b/fpga/gpmc/xilinx/common/main.v index 370c3a2..a54de0d 100644 --- a/fpga/gpmc/xilinx/common/main.v +++ b/fpga/gpmc/xilinx/common/main.v @@ -53,7 +53,7 @@ module main( input [3:0] sseg_mux, input [7:0] sseg_data); - parameter RAM_ADDR_BITS = 14; + parameter RAM_ADDR_BITS = 15; reg [15:0] sixteen_bit_io_in; reg [15:0] sixteen_bit_io_out; @@ -309,6 +309,7 @@ module main( // 0x0a: User process register // Bit 0: User processing start // Bit 1: User processing done (read only) + // 0x0b: Number of address bits of DSP RAM (read only) // 0x20 - 0x3f: LCD data area if (gpmc_wen_reg == 1'b0) begin if (gpmc_address_reg[(RAM_ADDR_BITS-1):5] == 1) begin // Address range 0x20 - 0x3f @@ -380,6 +381,9 @@ module main( gpmc_data_out[1] = userproc_done; gpmc_data_out[7:2] = 0; end + 11: begin + gpmc_data_out = RAM_ADDR_BITS; + end default: begin gpmc_data_out = 0; end diff --git a/fpga/gpmc/xilinx/numato/spartan6/xc6slx9/main.ucf b/fpga/gpmc/xilinx/numato/spartan6/xc6slx9/main.ucf index d6ccdcc..02c10c4 100644 --- a/fpga/gpmc/xilinx/numato/spartan6/xc6slx9/main.ucf +++ b/fpga/gpmc/xilinx/numato/spartan6/xc6slx9/main.ucf @@ -33,6 +33,7 @@ NET "gpmc_address<11>" LOC = "B8" |IOSTANDARD = "LVCMOS33"; NET "gpmc_address<12>" LOC = "C7" |IOSTANDARD = "LVCMOS33"; NET "gpmc_address<13>" LOC = "D6" |IOSTANDARD = "LVCMOS33"; NET "gpmc_address<14>" LOC = "B4" |IOSTANDARD = "LVCMOS33"; +NET "gpmc_address<15>" LOC = "B2" |IOSTANDARD = "LVCMOS33"; NET "usermem_wen" LOC = "V16" |IOSTANDARD = "LVCMOS33"; NET "usermem_wait" LOC = "T18" |SLEW = FAST |IOSTANDARD = "LVCMOS33"; @@ -63,6 +64,7 @@ NET "usermem_address<11>" LOC = "N16" |IOSTANDARD = "LVCMOS33"; NET "usermem_address<12>" LOC = "L16" |IOSTANDARD = "LVCMOS33"; NET "usermem_address<13>" LOC = "N14" |IOSTANDARD = "LVCMOS33"; NET "usermem_address<14>" LOC = "M13" |IOSTANDARD = "LVCMOS33"; +NET "usermem_address<15>" LOC = "K13" |IOSTANDARD = "LVCMOS33"; NET "four_bit_leds<0>" LOC = "G13" |IOSTANDARD = "LVCMOS33"; NET "four_bit_leds<1>" LOC = "H16" |IOSTANDARD = "LVCMOS33"; |