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put serial_port in blocking read

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Aart van Halteren
2013-07-17 12:44:26 +02:00
parent fa4dc7d31c
commit 8e7fd64701
2 changed files with 5 additions and 0 deletions
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2
smartmeter.rb
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@@ -17,6 +17,8 @@ def open_device
begin begin
# Open connection to serial port # Open connection to serial port
io_device = SerialPort.new("/dev/ttyUSB1", 9600, 7, 1, SerialPort::EVEN) io_device = SerialPort.new("/dev/ttyUSB1", 9600, 7, 1, SerialPort::EVEN)
# Make reading blocking
io_device.read_timeout = 0
rescue rescue
p "Serialport Error - reverting to 'example_blurp.txt'" p "Serialport Error - reverting to 'example_blurp.txt'"
io_device = File.open("example_blurp.txt") io_device = File.open("example_blurp.txt")

3
test-serial.rb
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@@ -24,6 +24,9 @@ if __FILE__ == $0
sp = SerialPort.new(port_str, baud_rate, data_bits, stop_bits, parity) sp = SerialPort.new(port_str, baud_rate, data_bits, stop_bits, parity)
# Make reading blocking
sp.read_timeout = 0
#just read forever #just read forever
while true do while true do
printf("%c", sp.getc) printf("%c", sp.getc)