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animation.ice
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{
"version": "1.2",
"package": {
"name": "VGA Animation Demo",
"version": "",
"description": "Generate animated RGB signals for a VGA display",
"author": "sam210723",
"image": "%3Csvg%20xmlns=%22http://www.w3.org/2000/svg%22%20version=%221%22%20width=%22672%22%20height=%22504%22%3E%3Cpath%20fill=%22#131313%22%20d=%22M0%200h672v504H0z%22/%3E%3Cpath%20fill=%22silver%22%20d=%22M0%200h96v336H0z%22/%3E%3Cpath%20fill=%22#c0c000%22%20d=%22M96%200h96v336H96z%22/%3E%3Cpath%20fill=%22#00c0c0%22%20d=%22M192%200h96v336h-96z%22/%3E%3Cpath%20fill=%22#00c000%22%20d=%22M288%200h96v336h-96z%22/%3E%3Cpath%20fill=%22#c000c0%22%20d=%22M384%200h96v336h-96z%22/%3E%3Cpath%20fill=%22#c00000%22%20d=%22M480%200h96v336h-96z%22/%3E%3Cpath%20fill=%22#0000c0%22%20d=%22M576%200h96v336h-96zM0%20336h96v42H0z%22/%3E%3Cpath%20fill=%22#c000c0%22%20d=%22M192%20336h96v42h-96z%22/%3E%3Cpath%20fill=%22#00c0c0%22%20d=%22M384%20336h96v42h-96z%22/%3E%3Cpath%20fill=%22silver%22%20d=%22M576%20336h96v42h-96z%22/%3E%3Cpath%20fill=%22#00214c%22%20d=%22M0%20378h120v126H0z%22/%3E%3Cpath%20fill=%22#fff%22%20d=%22M120%20378h120v126H120z%22/%3E%3Cpath%20fill=%22#32006a%22%20d=%22M240%20378h120v126H240z%22/%3E%3Cpath%20fill=%22#090909%22%20d=%22M480%20378h32v126h-32z%22/%3E%3Cpath%20fill=%22#1d1d1d%22%20d=%22M544%20378h32v126h-32z%22/%3E%3C/svg%3E"
},
"design": {
"board": "TinyFPGA-BX",
"graph": {
"blocks": [
{
"id": "bffb3e0d-8569-43bc-89a7-4840bd505696",
"type": "basic.input",
"data": {
"name": "clock",
"pins": [
{
"index": "0",
"name": "",
"value": ""
}
],
"virtual": true,
"clock": false
},
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"y": 184
}
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"type": "basic.output",
"data": {
"name": "red",
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"name": "",
"value": ""
}
],
"virtual": true
},
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},
{
"id": "b1387c93-c475-4beb-943d-96e9de0dbf1e",
"type": "basic.input",
"data": {
"name": "v_sync",
"pins": [
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"index": "0",
"name": "",
"value": ""
}
],
"virtual": true,
"clock": false
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"position": {
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"y": 320
}
},
{
"id": "f505c21d-d61a-43b4-b974-028e6ef9ad7b",
"type": "basic.output",
"data": {
"name": "green",
"pins": [
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"name": "",
"value": ""
}
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"virtual": true
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"value": ""
}
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"virtual": true,
"clock": false
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}
},
{
"id": "6d1703df-2ae6-4a88-baab-aec27e88a681",
"type": "basic.input",
"data": {
"name": "y",
"range": "[11:0]",
"pins": [
{
"index": "11",
"name": "",
"value": ""
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"name": "",
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"virtual": true,
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"position": {
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"y": 600
}
},
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"type": "basic.output",
"data": {
"name": "blue",
"pins": [
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"name": "",
"value": ""
}
],
"virtual": true
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},
{
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"type": "basic.input",
"data": {
"name": "active",
"pins": [
{
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"name": "",
"value": ""
}
],
"virtual": true,
"clock": false
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}
},
{
"id": "dfa50058-b2e6-4419-9bcf-34a397f02133",
"type": "basic.code",
"data": {
"code": "localparam H_ACTIVE = 1024; // Horizontal active pixels\nlocalparam V_ACTIVE = 768; // Vertical active pixels\nlocalparam F_MAX = 511; // Frame counter maximum\n\nreg red, green, blue;\nreg [8:0] frame;\n\nalways @(negedge v_sync)\n begin\n frame = frame == F_MAX ? 0 : frame + 1;\n end\n\nalways @(posedge clock)\n begin\n red = x == 0 || x == H_ACTIVE - 1\n || y == 0 || y == V_ACTIVE - 1\n || x > 20 && x < 40 && y > 20 && y < 20 + frame\n || x > 140 && x < 160 && y > 20 && y < 20 + (F_MAX - frame);\n \n green = x == 0 || x == H_ACTIVE - 1\n || y == 0 || y == V_ACTIVE - 1\n || x > 60 && x < 80 && y > 20 && y < 20 + (F_MAX - frame)\n || x > 140 && x < 160 && y > 20 && y < 20 + (F_MAX - frame)\n || x > 20 && x < frame && y > 9 && y < 11\n || x > F_MAX && x < F_MAX + 2 && y > 5 && y < 15\n || x > 18 && x < 20 && y > 5 && y < 15\n || x > 300+F_MAX-frame && x < 300+frame && y > 100+F_MAX-frame && y < 100+frame;\n \n blue = x == 0 || x == H_ACTIVE - 1\n || y == 0 || y == V_ACTIVE - 1\n || x > 100 && x < 120 && y > 20 && y < 20 + frame\n || x > 140 && x < 160 && y > 20 && y < 20 + (F_MAX - frame)\n || x > 300 && x < 300+frame && y > 100 && y < 100+frame;\n end\n\nassign r = active && red;\nassign g = active && green;\nassign b = active && blue;\n",
"params": [],
"ports": {
"in": [
{
"name": "clock"
},
{
"name": "v_sync"
},
{
"name": "x",
"range": "[11:0]",
"size": 12
},
{
"name": "y",
"range": "[11:0]",
"size": 12
},
{
"name": "active"
}
],
"out": [
{
"name": "r"
},
{
"name": "g"
},
{
"name": "b"
}
]
}
},
"position": {
"x": 504,
"y": 144
},
"size": {
"width": 832,
"height": 696
}
}
],
"wires": [
{
"source": {
"block": "dfa50058-b2e6-4419-9bcf-34a397f02133",
"port": "r"
},
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{
"source": {
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"port": "g"
},
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}
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{
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"port": "b"
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"port": "out"
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"target": {
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"port": "clock"
}
},
{
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"port": "out"
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"target": {
"block": "dfa50058-b2e6-4419-9bcf-34a397f02133",
"port": "v_sync"
}
},
{
"source": {
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"port": "out"
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"target": {
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"port": "x"
},
"size": 12
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{
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"port": "out"
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"target": {
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"port": "y"
},
"size": 12
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{
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"target": {
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"port": "active"
}
}
]
}
},
"dependencies": {}
}