Erwin/DMX-Hat_RasPi
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respeed

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This commit is contained in:
Jens Ullmert 2022-07-27 16:49:25 +02:00
parent af0a536a26
commit 325b0c229b
1 changed files with 8 additions and 13 deletions
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21
Python/sock.py
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@ -56,7 +56,7 @@ DMXRST = 88.0 # typical 88µs
DMXBRK = 8.0 # 8µs (min) to 1s (max) DMXBRK = 8.0 # 8µs (min) to 1s (max)
# DMX Sequence sleep [ms]/float # DMX Sequence sleep [ms]/float
DMXSLP = 5000.0 #250.0 # 0µs (min) to 1s (max) DMXSLP = 250.0 # 0µs (min) to 1s (max)
# Buffer for RDM # Buffer for RDM
DMXRDM = "<initial>" DMXRDM = "<initial>"
@ -101,8 +101,8 @@ def sendDMX(data):
global DMXRDM global DMXRDM
while True: while True:
with serial.Serial('/dev/serial0', baudrate=250000, timeout=1, stopbits=serial.STOPBITS_TWO, bytesize=8) as DMXSER:# UART configuration and definition with serial.Serial('/dev/serial0', baudrate=250000, timeout=DMXSLP, stopbits=serial.STOPBITS_TWO, bytesize=8) as DMXSER:# UART configuration and definition
DMXSER.cancel_read() #DMXSER.cancel_read()
# GPIO_18 to switch RS-485 driver (IC1) to TX-mode # GPIO_18 to switch RS-485 driver (IC1) to TX-mode
GPIO.output(18, GPIO.HIGH) GPIO.output(18, GPIO.HIGH)
@ -111,25 +111,20 @@ def sendDMX(data):
DMXSER.send_break(DMXRST / 1000000.0) DMXSER.send_break(DMXRST / 1000000.0)
# break-time # break-time
#-----------------------------------------------------------------------time.sleep(DMXBRK / 1000000.0) time.sleep(DMXBRK / 1000000.0)
time.sleep(0.1)
# send complete data array # send complete data array
DMXSER.write(bytearray(DMXDATA)) DMXSER.write(bytearray(DMXDATA))
# GPIO_18 to switch RS-485 driver (IC1) to RX-mode # GPIO_18 to switch RS-485 driver (IC1) to RX-mode
DMXSER.reset_input_buffer() DMXSER.reset_input_buffer()
GPIO.output(18, GPIO.LOW) GPIO.output(18, GPIO.LOW)
# Sleep between TX packages, use time to get RDM packages # Sleep between TX packages, use time to get RDM packages
#DMXRDM = "" DMXRDM = DMXSER.read(400)
#DMXRDMFLAG = False
time.sleep(2)
#-----------------------------------------------------------------------DMXSER.timeout(DMXSLP / 1000.0) # between 0 - 1 sec
DMXRDM = DMXSER.read(size=10)
print("input", DMXRDM)
#DMXRDMFLAG = True