Ergogen: Add PCB and net definitions
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8 changed files with 821 additions and 17 deletions
140
ergogen/footprints/rp2040_purple.js
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140
ergogen/footprints/rp2040_purple.js
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// Pin header footprint for a RP2040-based controller board from AliExpress.
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// Doesn't really have a name, it's just "the purple one with USB-C".
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// The pinout differs from the Raspberry Pi Pico!
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// -------------------------------
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// Params
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// orientation: if up (default), the controller will be on the front side of the PCB, otherwise on the back side
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module.exports = {
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params: {
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designator: 'MCU',
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orientation: 'up',
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// Right side of pins (with USB port at the top), top to bottom
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VBUS: {type: 'net', value: 'VBUS'},
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VIN: {type: 'net', value: 'VIN'},
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GND: {type: 'net', value: 'GND'},
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'3V3_EN': {type: 'net', value: '3V3_EN'},
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'3V3': {type: 'net', value: '3V3'},
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// (GND pin)
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RUN: {type: 'net', value: 'RUN'}, // Reset pin: Pull down to reset
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GP29: {type: 'net', value: 'GP29'}, // also: ADC3
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GP28: {type: 'net', value: 'GP28'}, // also: ADC2
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GP27: {type: 'net', value: 'GP27'}, // also: ADC1
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GP26: {type: 'net', value: 'GP26'}, // also: ADC0
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AGND: {type: 'net', value: 'AGND'},
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GP25: {type: 'net', value: 'GP25'},
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GP24: {type: 'net', value: 'GP24'},
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GP23: {type: 'net', value: 'GP23'},
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GP22: {type: 'net', value: 'GP22'},
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GP21: {type: 'net', value: 'GP21'},
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GP20: {type: 'net', value: 'GP20'},
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GP19: {type: 'net', value: 'GP19'},
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GP18: {type: 'net', value: 'GP18'},
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// Left side of pins (with USB port at the top), top to bottom
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GP0: {type: 'net', value: 'GP0'},
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GP1: {type: 'net', value: 'GP1'},
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GP2: {type: 'net', value: 'GP2'},
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GP3: {type: 'net', value: 'GP3'},
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GP4: {type: 'net', value: 'GP4'},
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// (GND pin)
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GP5: {type: 'net', value: 'GP5'},
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GP6: {type: 'net', value: 'GP6'},
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GP7: {type: 'net', value: 'GP7'},
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GP8: {type: 'net', value: 'GP8'},
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GP9: {type: 'net', value: 'GP9'},
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GP10: {type: 'net', value: 'GP10'},
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GP11: {type: 'net', value: 'GP11'},
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GP12: {type: 'net', value: 'GP12'},
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// (GND pin)
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GP13: {type: 'net', value: 'GP13'},
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GP14: {type: 'net', value: 'GP14'},
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GP15: {type: 'net', value: 'GP15'},
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GP16: {type: 'net', value: 'GP16'},
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GP17: {type: 'net', value: 'GP17'},
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},
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body: p => {
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let def_neg, def_pos, side, mirror;
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if (p.orientation === 'down') {
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def_neg = '';
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def_pos = '-';
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side = 'B';
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mirror = 'mirror';
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} else {
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def_neg = '-';
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def_pos = '';
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side = 'F';
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mirror = '';
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}
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const PINS_PER_SIDE = 20;
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const PINS_PER_SIDE_HALF = 10;
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const pins_left = [
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'GP0', 'GP1', 'GP2', 'GP3', 'GP4', 'GND', 'GP5', 'GP6', 'GP7', 'GP8',
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'GP9', 'GP10', 'GP11', 'GP12', 'GND', 'GP13', 'GP14', 'GP15', 'GP16', 'GP17',
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];
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const pins_right = [
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'VBUS', 'VIN', 'GND', '3V3_EN', '3V3', 'GND', 'RUN', 'GP29', 'GP28', 'GP27',
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'GP26', 'AGND', 'GP25', 'GP24', 'GP23', 'GP22', 'GP21', 'GP20', 'GP19', 'GP18',
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];
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function pin_pos_y(pin_number) {
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// Fucking floating points...
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return (254 * (pin_number - PINS_PER_SIDE_HALF) + 127) / 100;
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}
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function pin_labels(pin_names, right_side) {
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const sign = right_side ? def_pos : def_neg;
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const justify = right_side ? 'right' : 'left';
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let pin_label_body = '';
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for (let i = 0; i < PINS_PER_SIDE; i++) {
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pin_label_body += `
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(fp_text user ${pin_names[i]} (at ${sign}7.62 ${pin_pos_y(i)} ${p.r}) (unlocked yes) (layer ${side}.SilkS)
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(effects (font (size 0.8 0.8) (thickness 0.15)) (justify ${justify} ${mirror}))
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)`;
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}
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return pin_label_body;
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}
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function pin_pads(pin_names, right_side) {
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const sign = right_side ? def_pos : def_neg;
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const offset = right_side ? 21 : 1;
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let pin_pad_body = '';
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for (let i = 0; i < PINS_PER_SIDE; i++) {
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pin_pad_body += `
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(pad ${i + offset} thru_hole circle (at ${sign}8.89 ${pin_pos_y(i)} 0)
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(size 1.7526 1.7526) (drill 1.0922) (layers *.Cu *.SilkS *.Mask) ${p[pin_names[i]]}
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)`;
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}
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return pin_pad_body;
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}
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return `
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(module RP2040_USB_C_Purple (layer F.Cu) (tedit 66A6C4CD)
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${p.at /* parametric position */}
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${'' /* footprint reference */}
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(fp_text reference "${p.ref}" (at 0 0) (layer ${side}.SilkS) ${p.ref_hide} (effects (font (size 1.27 1.27) (thickness 0.15))))
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(fp_text value "" (at 0 0) (layer ${side}.SilkS) hide (effects (font (size 1.27 1.27) (thickness 0.15))))
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${'' /* component outline */}
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(fp_line (start -10.16 -28.6) (end 10.16 -28.6) (layer ${side}.SilkS) (width 0.15))
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(fp_line (start 10.16 -28.6) (end 10.16 25.4) (layer ${side}.SilkS) (width 0.15))
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(fp_line (start 10.16 25.4) (end -10.16 25.4) (layer ${side}.SilkS) (width 0.15))
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(fp_line (start -10.16 25.4) (end -10.16 -28.6) (layer ${side}.SilkS) (width 0.15))
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${'' /* pin labels */}
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${pin_labels(pins_left, false)}
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${pin_labels(pins_right, true)}
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${'' /* pin pads */}
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${pin_pads(pins_left, false)}
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${pin_pads(pins_right, true)}
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)
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`;
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}
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}
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