Add support for software reset of the teensy
parent
4a6885e6e4
commit
a26aece61c
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@ -71,6 +71,11 @@ const int config = WS2811_800kHz; // color config is on the PC side
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OctoWS2811 leds;
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OctoWS2811 leds;
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// Required for soft reboot
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#define RESTART_ADDR 0xE000ED0C
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#define READ_RESTART() (*(volatile uint32_t *)RESTART_ADDR)
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#define WRITE_RESTART(val) ((*(volatile uint32_t *)RESTART_ADDR) = (val))
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void setup() {
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void setup() {
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pinMode(13, OUTPUT);
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pinMode(13, OUTPUT);
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digitalWrite(13, HIGH);
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digitalWrite(13, HIGH);
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@ -96,7 +101,11 @@ void loop() {
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digitalWrite(13, HIGH);
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digitalWrite(13, HIGH);
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leds.show();
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leds.show();
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digitalWrite(13, LOW);
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digitalWrite(13, LOW);
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} else if (startChar >= 0) {
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}
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else if (startChar == '!') {
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WRITE_RESTART(0x5FA0004);
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}
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else if (startChar >= 0) {
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// discard unknown characters
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// discard unknown characters
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}
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}
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}
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}
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@ -3,6 +3,7 @@
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import redis
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import redis
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import time
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import time
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from serial import Serial, SerialException
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from serial import Serial, SerialException
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from serial.tools import list_ports
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import sys
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import sys
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import os
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import os
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@ -11,13 +12,17 @@ max_width = 20
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max_framerate = 40
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max_framerate = 40
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# Use dummy to test the Processing code without have access to actual hardware
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# Use dummy to test the Processing code without have access to actual hardware
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serialDevice = 'dummy'
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# serialDevice = 'dummy'
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# OSX serial device for teensy (not the same everywhere but gives a good indications what it might look like)
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# OSX serial device for teensy (not the same everywhere but gives a good indications what it might look like)
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#serialDevice = '/dev/tty.usbmodem807701'
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# serialDevice = '/dev/tty.usbmodem807701'
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# Linux Serial device
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# Linux Serial device
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#serialDevice = '/dev/ttyACM0'
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# serialDevice = '/dev/ttyACM0'
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# Automatically find the first serial port used, works on Linux. TODO: test on other OSes
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# Required if you want to reboot the teensy
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serialDevice = 'auto'
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wait_time = None
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wait_time = None
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@ -44,6 +49,23 @@ def send(r, s):
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time.sleep(end - now)
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time.sleep(end - now)
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def reboot(port_name):
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ser = Serial()
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ser.port = port_name
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ser.open()
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# Send reboot command
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ser.write(ord('!').to_bytes(4, byteorder='little'))
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ser.close()
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time.sleep(3)
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def find_serial():
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for path, name, details in list_ports.comports():
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if details != 'n/a':
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return path
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raise Exception('No open ports found.')
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def serialConfigure(port_name, baudrate=9600):
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def serialConfigure(port_name, baudrate=9600):
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'''
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'''
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We use a very low baudrate by default because the USB port on the teensy
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We use a very low baudrate by default because the USB port on the teensy
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@ -54,6 +76,13 @@ def serialConfigure(port_name, baudrate=9600):
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time.sleep(1)
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time.sleep(1)
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ser = 'dummyMode'
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ser = 'dummyMode'
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return ser
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return ser
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elif port_name == 'auto':
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print("Auto detected, search for open port")
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port_name = find_serial()
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print("Port found: ", port_name, ' reboot.')
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reboot(port_name)
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port_name = find_serial()
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print("Done, new port: ", port_name)
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ser = Serial()
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ser = Serial()
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ser.port = port_name
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ser.port = port_name
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@ -0,0 +1,21 @@
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from serial import Serial, SerialException
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import sys
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# OSX serial device for teensy (not the same everywhere but gives a good indications what it might look like)
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# serialDevice = '/dev/tty.usbmodem807701'
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# Linux Serial device
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serialDevice = '/dev/ttyACM1'
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if __name__ == "__main__":
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ser = Serial()
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ser.port = serialDevice
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try:
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ser.open()
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ser.timeout = 1
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ser.write(ord('!').to_bytes(4, byteorder='little'))
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except SerialException as e:
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sys.stderr.write("Could not open serial port %s: %s\n" % (ser.portstr, e))
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