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uart.py File Reference

UART Sample More...

Go to the source code of this file.

## Namespaces
| uart

## Functions
def | main ()

## Variables
int | BUF_LEN = 4096
int | UART_MODE_RS232 = 0
int | UART_PORT_1 = 0

## Detailed Description

UART Sample

Copyright
  2019 Moxa Inc. All rights reserved.

Date
  2019-02-11

Author
  William Chang

Version
  V1.0
  1 '''
  2 Copyright (C) 2019 Moxa Inc. All rights reserved.
  3 SPDX-License-Identifier: Apache-2.0
  4
  5 UART Python Sample Application
  6
  7 Date Author Comment
  8 2019-02-11 William Chang Created it.
  9 '''
  10
  11
  19
  20 from ioThinx_4530 import ioThinx_4530_API
  21 import argparse
  22 import os
  23
  24 BUF_LEN = 4096
  25 UART_MODE_RS232 = 0
  26 UART_PORT_1 = 0
  27
  28
  29 def main():
  30 parser = argparse.ArgumentParser(description="Miscellaneous sample program.")
  31 parser.add_argument("-b", "--baudrate", dest="uart_baudrate", type=int, default=115200)
  32 parser.add_argument("-p", "--port", dest="uart_port", type=int, default=UART_PORT_1)
  33 parser.add_argument("-m", "--mode", dest="uart_mode", type=int, default=UART_MODE_RS232)
  34 args = parser.parse_args()
  35
  36 uart_slot = 0
  37 uart_port = args.uart_port
  38 uart_mode = args.uart_mode
  39 uart_baudrate = args.uart_baudrate
  40 print("UART slot = {}".format(uart_slot))
  41 print("UART port = {}".format(uart_port))
  42 print("UART mode = {}".format(uart_mode))
  43 print("UART baudrate = {}".format(uart_baudrate))
  44
  45 device = ioThinx_4530_API.ioThinx_4530_API()
  46 fd = device.ioThinx_Uart_Open(uart_slot, uart_port, uart_mode, uart_baudrate)
  47 print("fd = {}".format(fd))
  48 print("Start UART echo.")
  49
  50 while True:
  51 buf = os.read(fd, BUF_LEN)
  52 print(len(buf))
  53 print(buf)
  54 if len(buf) > 0:
  55 os.write(fd, buf)
  56 if 'quit' in buf.decode():
  57 break
  58
  59 print("Stop UART echo.")
  60 os.close(fd)
  61
  62
  63 if __name__ == '__main__':
  64 main()

Definition in file uart.py.