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svgpinout.py
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#!/usr/bin/env python3
# SVG pinout generator 0.11
# furrtek 09/2018
# Some chip package types are not tested !
# python -m pip install "cairosvg<2.0"
# Usage: svgpinout pinout.csv
# First CSV line: Chip name, Output file name, Package, Logo file name
# All other lines: Pin name, Type, Direction (IN, OUT, BIDIR)
# Type: A=Address, C=Control, D=Data, G=Graphics, K=Clock, M=Multiplexed, P=Power
import sys
import os
import svgwrite
import csv
# Edit this if needed:
pin_width = 20
pin_length = 80
font_size = 16
corner_margin = 40
packages = []
svg_document = 0
arrow_length = pin_width / 2
arrow_insert = []
arrow_rotation = 0
def arrow(direction):
if direction == "OUT":
# >
arrow = "M " + str(arrow_insert[0]) + "," + str(arrow_insert[1])
arrow += " l " + str(arrow_length) + "," + str(arrow_length)
arrow += " l " + str(-arrow_length) + "," + str(arrow_length) + " z"
elif direction == "IN":
# <
arrow = "M " + str(arrow_insert[0] + arrow_length) + "," + str(arrow_insert[1])
arrow += " l " + str(-arrow_length) + "," + str(arrow_length)
arrow += " l " + str(arrow_length) + "," + str(arrow_length) + " z"
svg_document.add(svg_document.path(d=arrow,
fill="black",
transform=arrow_rotation,
stroke_width="1",
stroke="black"))
def generate(filename):
global svg_document
global arrow_insert
global arrow_rotation
rows = []
pincount = 0
pin_total = 0
pincount_w = 0
pincount_h = 0
ref_size = 0
dot_size = 0
edge = 0 # Start with bottom edge
pin_counter = 0
with open(filename) as csv_file:
csv_reader = csv.reader(csv_file, delimiter=',')
for row in csv_reader:
rows.append(row)
chip_name = rows[0][0]
svg_file_name = "./svg/" + rows[0][1] + ".svg"
logo_file_name = rows[0][3]
print("Drawing chip " + chip_name + " (" + svg_file_name + ")...")
# Look for package definition
for package in packages:
if package[0] == rows[0][2]:
pincount = int(package[1])
pincount_w = int(package[2])
pincount_h = int(package[3])
pin_number = int(package[4])
ref_size = int(package[5])
dot_size = int(package[6])
chip_h = int(package[7]) # DIP height, overwritten for quad packages
pin_space = pin_width * float(package[8])
break
if dot_size == 0:
print("Unsupported package: " + rows[0][2])
exit()
# Chip case width and height
chip_w = pincount_w * pin_width + (pincount_w - 1) * pin_space + corner_margin * 2
if pincount_h != 0:
chip_h = pincount_h * pin_width + (pincount_h - 1) * pin_space + corner_margin * 2
# SVG document width and height
if pincount_h != 0:
doc_w = chip_w + pin_length * 2 + arrow_length * 2
chip_x = pin_length + arrow_length
else:
doc_w = chip_w
chip_x = 0
doc_h = chip_h + pin_length * 2 + arrow_length * 2
svg_document = svgwrite.Drawing(filename=svg_file_name, size=(str(doc_w) + "px", str(doc_h) + "px"))
# Chip package background
svg_document.add(svg_document.rect(insert=(chip_x, arrow_length + pin_length),
size=(str(chip_w) + "px", str(chip_h) + "px"),
stroke="none",
fill="white"))
markings_x = chip_x + chip_w * 0.2
markings_y = pin_length + arrow_length + chip_h * 0.1
# Logo, if present
if logo_file_name != "":
svg_document.add(svg_document.image("../logos/" + logo_file_name,
size=(chip_w * 0.4, chip_h * 0.4),
insert=(markings_x, markings_y)))
markings_y += 30 + (doc_h * 0.25)
# Chip name
svg_document.add(svg_document.text(chip_name,
fill="black",
style="font-size:" + str(ref_size) + "px; font-family:Verdana;",
insert=(markings_x, markings_y)))
# Pin 1 marker
svg_document.add(svg_document.circle(r=str(dot_size),
fill="none",
stroke_width="1",
stroke="black",
center=(chip_x + (dot_size * 3), doc_h - (pin_length + (dot_size * 3)))))
for i in range(1, len(rows)):
pin = rows[i]
pin_name = pin[0]
if len(pin) > 1:
pin_type = pin[1]
else:
pin_type = '?'
# Color decode
if pin_type == "A":
rgb_color = "rgb(255,255,127)"
elif pin_type == "C":
rgb_color = "rgb(159,127,223)"
elif pin_type == "D":
rgb_color = "rgb(127,191,255)"
elif pin_type == "G":
rgb_color = "rgb(159,191,127)"
elif pin_type == "I":
rgb_color = "rgb(0,255,191)"
elif pin_type == "K":
rgb_color = "rgb(255,0,255)"
elif pin_type == "M":
rgb_color = "rgb(255,127,0)"
elif pin_type == "O":
rgb_color = "rgb(0,159,127)"
elif pin_type == "P":
if "VCC" in pin_name:
rgb_color = "rgb(255,0,0)"
elif "GND" in pin_name:
rgb_color = "rgb(127,127,127)"
elif "VSS" in pin_name:
rgb_color = "rgb(127,127,127)"
else:
rgb_color = "rgb(255,255,255)"
centering = pin_length / 2 - len(pin_name) * 4.8
number_length = len(str(pin_number)) * 4.8
corner_offset = chip_x + corner_margin
bottom_offset = chip_x + chip_h - corner_margin - pin_width
right_offset = chip_x + chip_w - corner_margin - pin_width
pin_offset = pin_counter * (pin_width + pin_space)
if edge == 0:
pin_insert = (corner_offset + pin_offset, chip_h + pin_length + arrow_length)
text_insert = (-pin_insert[1] - pin_length + centering, pin_insert[0] + 15.5)
number_insert = (pin_insert[0] + 10 - number_length, pin_insert[1] - 10)
arrow_insert = (pin_insert[1] + pin_length, -pin_insert[0] - pin_width)
pin_size = (str(pin_width) + "px", str(pin_length) + "px")
text_rotation = "rotate(-90)"
arrow_rotation = "rotate(90)"
elif edge == 1:
pin_insert = (chip_w + pin_length + arrow_length, bottom_offset - pin_offset)
text_insert = (pin_insert[0] + centering, pin_insert[1] + 15.5)
number_insert = (pin_insert[0] - 10 - number_length * 2, pin_insert[1] + 15.5)
arrow_insert = (pin_insert[0] + pin_length, pin_insert[1])
pin_size = (str(pin_length) + "px", str(pin_width) + "px")
text_rotation = "rotate(0)"
arrow_rotation = "rotate(0)"
elif edge == 2:
pin_insert = (right_offset - pin_offset, arrow_length)
text_insert = (-pin_insert[1] - pin_length + centering, pin_insert[0] + 15.5)
number_insert = (pin_insert[0] - number_length + 10, pin_insert[1] + pin_length + 20)
arrow_insert = (-arrow_length, pin_insert[0])
pin_size = (str(pin_width) + "px", str(pin_length) + "px")
text_rotation = "rotate(-90)"
arrow_rotation = "rotate(-90)"
elif edge == 3:
pin_insert = (arrow_length, corner_offset + pin_offset)
text_insert = (pin_insert[0] + centering, pin_insert[1] + 15.5)
number_insert = (pin_insert[0] + 10 + pin_length, pin_insert[1] + 15.5)
arrow_insert = (-arrow_length, -pin_insert[1] - pin_width)
pin_size = (str(pin_length) + "px", str(pin_width) + "px")
text_rotation = "rotate(0)"
arrow_rotation = "rotate(180)"
# Pin number
svg_document.add(svg_document.text(str(pin_number),
fill="black",
style="font-size:" + str(
font_size) + "px; font-family:Bitstream Vera Sans Mono;",
insert=number_insert))
# Pin outline
if pin_name == "NC":
svg_document.add(svg_document.rect(insert=pin_insert,
size=pin_size,
stroke_width="1",
stroke="grey",
stroke_dasharray="5,5",
fill="white"))
else:
svg_document.add(svg_document.rect(insert=pin_insert,
size=pin_size,
stroke_width="1",
stroke="black",
fill=rgb_color))
# Pin name
svg_document.add(svg_document.text(pin_name,
fill="black",
style="font-size:" + str(
font_size) + "px; font-family:Bitstream Vera Sans Mono;",
transform=text_rotation,
insert=text_insert))
# Direction arrow
if len(pin) > 2:
if pin[2] == "BIDIR":
arrow("IN")
arrow("OUT")
else:
arrow(pin[2])
if pin_number == pincount:
pin_number = 1
else:
pin_number += 1
# Progress along chip edges
pin_total += 1
pin_counter += 1
if (edge == 0) and (pin_counter == pincount_w):
pin_counter = 0
if pincount_h > 0:
edge = 1 # Quad
else:
edge = 2 # Dual
elif (edge == 1) and (pin_counter == pincount_h):
pin_counter = 0
edge = 2
elif (edge == 2) and (pin_counter == pincount_w):
pin_counter = 0
edge = 3
if pin_total != pincount:
print("Error: pin count is incorrect ! Got " + str(pin_total) + " need " + str(pincount))
exit()
# Chip package outline
svg_document.add(svg_document.rect(insert=(chip_x, arrow_length + pin_length),
size=(str(chip_w) + "px", str(chip_h) + "px"),
stroke_width="1",
stroke="black",
fill="none"))
svg_document.save()
if len(sys.argv) != 2:
print("Usage: svgpinout [pinout.csv | all]")
exit()
else:
# Load package definitions
with open("packages.csv") as package_file:
package_reader = csv.reader(package_file, delimiter=',')
next(package_reader)
for row in package_reader:
packages.append(row)
print("Loaded " + str(len(packages)) + " package definitions.")
if sys.argv[1] == "all":
for file in os.listdir("./csv/"):
if file.endswith(".csv"):
generate("./csv/" + file)
else:
generate(sys.argv[1])
print("Done !")