6663b6c9
 adorian
projet complet av...
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#!/usr/bin/env python3
import serial
import time
import sys
# serprog constants
ACK = b'\x06'
O_SPIOP = b'\x13'
# flash chip constants
READ_SR2 = b'\x35'
WRITE_ENABLE = b'\x06'
WRITE_SR2 = b'\x31'
def send_recieve(ser, data_in, data_out_length):
ser.write(O_SPIOP + len(data_in).to_bytes(3, 'little') + data_out_length.to_bytes(3, 'little') + data_in)
ack = ser.read(1)
if ack != ACK:
print('Communication Error')
exit(1)
return ser.read(data_out_length)
device = '/dev/ttyACM0'
if len(sys.argv) >= 2:
device = sys.argv[1]
ser = serial.Serial(device)
print('Using: ' + ser.name)
old_sr2 = send_recieve(ser, READ_SR2, 1)
print('Status Register 2 before = ' + str(old_sr2))
new_sr2 = bytes([old_sr2[0] | 0x00000002])
print('Programming Status Register 2 with ' + str(new_sr2))
send_recieve(ser, WRITE_ENABLE, 0)
send_recieve(ser, WRITE_SR2 + new_sr2, 0)
time.sleep(1)
programmed_sr2 = send_recieve(ser, READ_SR2, 1)
print('Status Register 2 after = ' + str(programmed_sr2))
if programmed_sr2 == new_sr2:
print('Programming done')
else:
print('Programming error')
ser.close()
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