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add autoswitching baudrate (used by EasyPS2000)

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King Kévin 2015-08-01 12:41:41 +02:00
parent 73b6dc6c53
commit 91b317ca79
1 changed files with 21 additions and 22 deletions
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43
ps_simulator.rb
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@ -9,10 +9,6 @@ DEBUG = true
# connect to PC
pc_serial = SerialPort.open("/dev/ttyUSB0",{ baud: 57600, databits: 8, parity: SerialPort::ODD, stop_bit: 1, flow_control: SerialPort::NONE})
# ensure serial settings (weird bug)
pc_serial.baud = 57600
pc_serial.parity = SerialPort::ODD
while true
activities = IO.select([pc_serial])
activities[0].each do |activity|
@ -24,26 +20,29 @@ while true
telegram_in = Telegram.parse(data)
if telegram_in then
puts "> "+telegram_in.to_s[2..-1]
telegram_out = case telegram_in.object
when 0 # device type
Telegram.new(telegram_in.object,"simulator".bytes.to_a+[0x00],false)
when 8 # manufacturer
Telegram.new(telegram_in.object,"EA".bytes.to_a+[0x00],false)
when 1, 6, 9 # article no., serial no., software version
Telegram.new(telegram_in.object,"42".bytes.to_a+[0x00],false)
when 2,3,4 # nominal voltage, current, power
Telegram.new(telegram_in.object,[42.0].pack("g").bytes.to_a,false)
when 19 # device class
Telegram.new(telegram_in.object,[0x00,0x10],false)
else # error: object not defined
Telegram.new(0xff,[0x07],false)
end
if telegram_out then
puts "< "+telegram_out.to_s[2..-1] # display message
pc_serial.write(telegram_out.pack) # send message
end
else
raise "could not parse message"
pc_serial.baud = (pc_serial.baud==57600 ? 115200 : 57600)
pc_serial.parity = SerialPort::ODD
puts "could not parse message: switching baudrate to #{pc_serial.baud} bps"
end
telegram_out = case telegram_in.object
when 0 # device type
# Telegram.new(telegram_in.object,[0x50,0x53,0x20,0x32,0x30,0x38,0x34,0x2D,0x30,0x33,0x42,0x00])
Telegram.new(telegram_in.object,"simulator".bytes.to_a+[0x00],false)
when 1, 6, 9 # article no., serial no., software version
Telegram.new(telegram_in.object,"42".bytes.to_a+[0x00],false)
when 2,3,4 # nominal voltage, current, power
Telegram.new(telegram_in.object,[42.0].pack("g").bytes.to_a,false)
when 19 # device class
Telegram.new(telegram_in.object,[0x00,0x10],false)
else # error: object not defined
Telegram.new(0xff,[0x07],false)
end
if telegram_out then
puts "< "+telegram_out.to_s[2..-1] # display message
pc_serial.write(telegram_out.pack) # send message
end
rescue Exception => e
puts e.to_s
end