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added timer, added buzzer, added blink for timer, refined timings and…
… FSM conditions
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| module blinker ( | ||
| input clk, // clock | ||
| input rst, // reset | ||
| output blink_fast, | ||
| output blink_med, | ||
| output blink_slow | ||
| ) { | ||
| dff counter[27] (.clk(clk),.rst(rst)); | ||
| always { | ||
| blink_fast = counter.q[23]; | ||
| blink_med = counter.q[24]; | ||
| blink_slow = counter.q[25]; | ||
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||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 1,186 @@ | ||
| module timer ( | ||
| input clk, // clock | ||
| input rst, // reset | ||
| input state[2], | ||
| output led[10], | ||
| output timeout | ||
| ) { | ||
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| dff twenty[35](.clk(clk), .rst(rst)); | ||
| dff fourty[35](.clk(clk), .rst(rst)); | ||
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| fsm timer(.clk(clk), .rst(rst)) = {IDLE, TEN, NINE, EIGHT, SEVEN, SIX, FIVE, FOUR, THREE, TWO, ONE, TIMEOUT}; | ||
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| blinker blink(.clk(clk), .rst(rst)); | ||
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| always { | ||
| led = 0; | ||
| timeout = 0; | ||
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| case(timer.q){ | ||
| timer.IDLE: | ||
| led = 10h2FF; | ||
| if(state == 1){ | ||
| timer.d = timer.TEN; | ||
| }else if(state == 2){ | ||
| timer.d = timer.EIGHT; | ||
| }else if(state == 3){ | ||
| timer.d = timer.SIX; | ||
| } | ||
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||
| timer.TEN: | ||
| led = 10b111111111X; | ||
| led[9] = blink.blink_slow; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.NINE; | ||
| } | ||
| } | ||
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| timer.NINE: | ||
| led = 10b11111111XZ; | ||
| led[8] = blink.blink_slow; | ||
| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.EIGHT; | ||
| } | ||
| } | ||
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| timer.EIGHT: | ||
| led = 10b1111111XZZ; | ||
| led[7] = blink.blink_slow; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.SEVEN; | ||
| } | ||
| } | ||
| timer.SEVEN: | ||
| led = 10b111111XZZZ; | ||
| led[6] = blink.blink_med; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.SIX; | ||
| } | ||
| } | ||
| timer.SIX: | ||
| led = 10b11111XZZZZ; | ||
| led[5] = blink.blink_med; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.FIVE; | ||
| } | ||
| } | ||
| timer.FIVE: | ||
| led = 10b1111XZZZZZ; | ||
| led[4] = blink.blink_med; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.FOUR; | ||
| } | ||
| } | ||
| timer.FOUR: | ||
| led = 10b111XZZZZZZ; | ||
| led[3] = blink.blink_med; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.THREE; | ||
| } | ||
| } | ||
| timer.THREE: | ||
| led = 10b11XZZZZZZZ; | ||
| led[2] = blink.blink_med; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.TWO; | ||
| } | ||
| } | ||
| timer.TWO: | ||
| led = 10b1X00000000; | ||
| led[1] = blink.blink_slow; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.ONE; | ||
| } | ||
| } | ||
| timer.ONE: | ||
| led = 10bXZZZZZZZZZ; | ||
| led[1] = blink.blink_slow; | ||
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| fourty.d = fourty.q 1; | ||
| if(fourty.q[31] == 1){ | ||
| fourty.d[30:0] = 0; | ||
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| twenty.d = twenty.q 1; | ||
| if(twenty.q[30] == 1){ | ||
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| twenty.d[29:0] = 0; | ||
| timer.d = timer.TIMEOUT; | ||
| } | ||
| } | ||
| timer.TIMEOUT: | ||
| timeout = 1; | ||
| } | ||
| } | ||
| } |