diff options
| -rw-r--r-- | kernel/driver.cc | 4 | ||||
| -rw-r--r-- | techlibs/greenpak4/cells_sim.v | 46 |
2 files changed, 46 insertions, 4 deletions
diff --git a/kernel/driver.cc b/kernel/driver.cc index 02e332f90..a41d0e8cb 100644 --- a/kernel/driver.cc +++ b/kernel/driver.cc @@ -183,8 +183,8 @@ int main(int argc, char **argv) printf(" -b backend\n"); printf(" use this backend for the output file specified on the command line\n"); printf("\n"); - printf(" -f backend\n"); - printf(" use the specified front for the input files on the command line\n"); + printf(" -f frontend\n"); + printf(" use the specified frontend for the input files on the command line\n"); printf("\n"); printf(" -H\n"); printf(" print the command list\n"); diff --git a/techlibs/greenpak4/cells_sim.v b/techlibs/greenpak4/cells_sim.v index 4602c6cc4..6b5100f75 100644 --- a/techlibs/greenpak4/cells_sim.v +++ b/techlibs/greenpak4/cells_sim.v @@ -55,10 +55,52 @@ module GP_4LUT(input IN0, IN1, IN2, IN3, output OUT); assign OUT = INIT[{IN3, IN2, IN1, IN0}]; endmodule -module GP4_VDD(output OUT); +module GP_VDD(output OUT); assign OUT = 1; endmodule -module GP4_VSS(output OUT); +module GP_VSS(output OUT); assign OUT = 0; endmodule + +module GP_LFOSC(input PWRDN, output reg CLKOUT); + + parameter PWRDN_EN = 0; + parameter AUTO_PWRDN = 0; + parameter OUT_DIV = 1; + + initial CLKOUT = 0; + + always begin + if(PWRDN) + clkout = 0; + else begin + //half period of 1730 Hz + #289017; + clkout = ~clkout; + end + end + +endmodule + +module GP_COUNT8(input CLK, input wire RST, output reg OUT); + + parameter RESET_MODE = "RISING"; + + parameter COUNT_TO = 8'h1; + parameter CLKIN_DIVIDE = 1; + + //more complex hard IP blocks are not supported for simulation yet + +endmodule + +module GP_COUNT14(input CLK, input wire RST, output reg OUT); + + parameter RESET_MODE = "RISING"; + + parameter COUNT_TO = 14'h1; + parameter CLKIN_DIVIDE = 1; + + //more complex hard IP blocks are not supported for simulation yet + +endmodule |