ReferenceProjects/riscv-bluespec-classic
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ready for demo

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This commit is contained in:
Yehowshua Immanuel 2024-03-20 03:30:28 -04:00
parent 83f78d1c3d
commit 10ed5b8751
3 changed files with 20 additions and 13 deletions
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11
src/Core.bsv
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@ -21,12 +21,13 @@ module mkCore(Core#(clkFreq));
Real val = fromInteger(clkFreqInt); Real val = fromInteger(clkFreqInt);
messageM("mkCore clkFreq" + realToString(val)); messageM("mkCore clkFreq" + realToString(val));
rule second_counter; Bool pulse_every_second = counter == clkFreqUInt;
rule count;
counter <= (counter == clkFreqUInt) ? 0 : counter + 1; counter <= (counter == clkFreqUInt) ? 0 : counter + 1;
tick_second <= True;
endrule endrule
rule update_led(tick_second); rule counting_led(pulse_every_second);
led_out <= led_out + 1; led_out <= led_out + 1;
endrule endrule
@ -37,7 +38,9 @@ module mkCore(Core#(clkFreq));
return led_out; return led_out;
endmethod endmethod
method Action put_char(Bit#(8) byte_in); method Action put_char(Bit#(8) byte_in);
uart_out <= byte_in; Bit#(8) value = byte_in;
uart_out <= value;
// led_out <= value;
endmethod endmethod
endmodule endmodule

2
src/Deserializer.bsv
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@ -41,6 +41,8 @@ module mkDeserialize#(Handle fileHandle)(IDeserializer#(clkFreq, baudRate));
shiftReg <= {ftdiRxIn, shiftReg[7:1]}; shiftReg <= {ftdiRxIn, shiftReg[7:1]};
endrule endrule
// an invariant enforced here is we can't call this method
// until shift reg is valid
method Bit#(8) get() if (ftdiState == STOP && clkDivider.isAdvancing()); method Bit#(8) get() if (ftdiState == STOP && clkDivider.isAdvancing());
return shiftReg; return shiftReg;
endmethod endmethod

20
src/Top.bsv
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@ -43,15 +43,17 @@ module mkTop(ITop);
messageM("Hallo!!" + realToString(5)); messageM("Hallo!!" + realToString(5));
// connect up core device // connect up core device
rule core_led_o; rule core_led_o;
persist_led <= core.get_led; persist_led <= core.get_led;
endrule endrule
rule core_char_device_o;
serializer.putBit8(core.get_char); rule core_char_device_o;
endrule serializer.putBit8(core.get_char);
rule core_char_device_i; endrule
core.put_char(deserializer.get);
endrule rule core_char_device_i;
core.put_char(deserializer.get);
endrule
// output methods // output methods
method Bit#(1) ftdi_rxd; method Bit#(1) ftdi_rxd;