ardupilot/libraries/AP_HAL_ChibiOS/hwdef/scripts/af_parse.py

93 lines
2.3 KiB
Python
Executable File

#!/usr/bin/env python
'''
create alternate function tables
This assumes a csv file extracted from the datasheet using tablula:
https://github.com/tabulapdf/tabula
'''
import sys, csv, os
def is_pin(str):
'''see if a string is a valid pin name'''
if len(str) < 3:
return False
if str[0] != 'P':
return False
if str[1] not in "ABCDEFGHIJK":
return False
try:
p = int(str[2:])
if p < 0 or p > 15:
return False
return True
except ValueError:
return False
def pin_compare(p1, p2):
'''control pin sort order'''
(p1,f1) = p1.split(':')
(p2,f2) = p2.split(':')
port1 = p1[:2]
port2 = p2[:2]
pin1 = int(p1[2:])
pin2 = int(p2[2:])
#print(port1, pin1, port2, pin2)
if port1 == port2:
if pin1 == pin2:
if f1 < f2:
return -1
return 1
if pin1 < pin2:
return -1
return 1
if port1 < port2:
return -1
return 1
def parse_af_table(fname, table):
csvt = csv.reader(open(fname,'rb'))
i = 0
aflist = []
for row in csvt:
if len(row) > 2 and row[1] == 'AF0':
# it is a AF list
aflist = []
for s in row[1:]:
if s:
aflist.append(int(s[2:]))
if not is_pin(row[0]):
if len(row) < 2 or not is_pin(row[1]):
continue
row = row[1:]
pin = row[0]
for i in range(len(aflist)):
af = aflist[i]
s = row[i+1]
s = s.replace('_\r', '_')
s = s.replace('\r_', '_')
s = s.replace('\r', '')
s = s.replace(' ', '')
if s == '-' or len(s) == 0:
continue
functions = s.split('/')
for f in functions:
table[pin+':'+f.upper()] = af
table = {}
if len(sys.argv) != 2:
print("Error: expected 1 CSV file")
sys.exit(1)
parse_af_table(sys.argv[1], table)
sys.stdout.write("AltFunction_map = {\n");
sys.stdout.write('\t# format is PIN:FUNCTION : AFNUM\n')
sys.stdout.write('\t# extracted from %s\n' % os.path.basename(sys.argv[1]))
for k in sorted(table.keys(), cmp=pin_compare):
s = '"' + k + '"'
sys.stdout.write('\t%-20s\t:\t%s,\n' % (s, table[k]))
sys.stdout.write("}\n");