nearxos
71dd98f2f8
- Schematic rebuilt with MCP batch_add_and_connect (23 components, 17 nets) - Board outline: 65×40mm, 2-layer, JLCPCB DRC rules (0.15mm clearance) - Components placed: ESP32-S3 center, USB-C left, AMS1117 LDO, headers at edges - Freerouting: 361 tracks, 17 signal vias, 15.7s autoroute - GND copper pour on F.Cu + B.Cu, 77 stitching vias - DRC: 208 violations (77 via_dangling = zone fill artifacts, resolve on KiCad GUI fill) - Gerbers + drill + BOM + pick-and-place exported to gerbers/ - Netlist verified: 20 components, 16 nets all properly connected
87 lines
2.6 KiB
Python
87 lines
2.6 KiB
Python
#!/usr/bin/env python3
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"""
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ESP32-S3 Sensor Node — Specctra DSN Generator v2
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Uses exact format from known-working DSN file.
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"""
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import os
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PROJ = os.path.expanduser("~/Documents/KiCad/10.0/esp32-s3-sensor-node")
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TEMPLATE = os.path.expanduser("~/Documents/KiCad/10.0/USB_PD_ESP32S3/freerouting.dsn")
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def gen():
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templ = open(TEMPLATE).read()
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# Replace key sections
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# 1. Board outline
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templ = templ.replace(
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'(rect 0 0 100000 80000)',
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'(rect 0 0 65000 40000)'
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)
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# 2. Keepout zones (after GND layer)
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# Find the end of layer definitions and add keepout
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keepout_section = '''
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(place_rule (F.Cu (clearance 200)))
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(place_rule (B.Cu (clearance 200)))
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(rule (clearance 150))
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(rule "3V3" (clearance 250))
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(rule "VBUS" (clearance 250))
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(rule "USB_D_P" (clearance 150))
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(rule "USB_D_N" (clearance 150))
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(keepout F.Cu (rect 46000 28000 65000 40000))
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(keepout B.Cu (rect 46000 28000 65000 40000))
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)'''
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# Find structure closing
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struct_end = templ.find('\n )\n', templ.find('(structure'))
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if struct_end > 0:
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templ = templ[:struct_end] + keepout_section + templ[struct_end:]
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# 3. Replace nets
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nets_section = gen_nets()
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net_start = templ.find('(network\n')
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net_end = templ.find('\n)', net_start) + 2
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if net_start > 0:
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templ = templ[:net_start] + nets_section + templ[net_end:]
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# Write
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dsn = os.path.join(PROJ, "esp32-s3-sensor-node.dsn")
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open(dsn, 'w').write(templ)
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print(f"Written: {dsn} ({len(templ)} bytes)")
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NETS = {
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"GND": ["J1-SH","J1-A1","J1-B1","U2-1","U1-1","U1-16","U1-40",
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"C1-2","C2-2","C3-2","C4-2","C5-2","C6-2",
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"D1-1","R4-2","R7-2","R8-2","J2-4","J3-1"],
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"3V3": ["U2-2","U1-2","C1-1","C2-1","C3-1","C6-1",
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"R2-2","R3-2","R5-2","R6-2","J2-1","J3-4"],
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"VBUS": ["J1-A4","J1-B4","U2-3","C5-1"],
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"EN": ["U1-3","R2-1","C4-1"],
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"IO0": ["U1-27","R3-1"],
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"IO12": ["U1-20","R4-1"],
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"SDA": ["U1-4","R5-1","J2-2"],
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"SCL": ["U1-5","R6-1","J2-3"],
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"USB_D_P": ["J1-A6","J1-B6","U1-14"],
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"USB_D_N": ["J1-A7","J1-B7","U1-13"],
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"CC1": ["J1-A5","R7-1"],
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"CC2": ["J1-B5","R8-1"],
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"IO2_LED": ["U1-38","R1-1"],
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"D1_A": ["R1-2","D1-2"],
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"RXD0": ["U1-36","J3-2"],
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"TXD0": ["U1-37","J3-3"],
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}
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def gen_nets():
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lines = ['(network']
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for name, pins in NETS.items():
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lines.append(f' (net "{name}"')
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for pin in pins:
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ref, pn = pin.split('-')
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lines.append(f' (pin {ref} {pn})')
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lines.append(f' )')
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lines.append(')')
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return '\n'.join(lines)
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if __name__ == "__main__":
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gen()
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