RS485_UART = (1, 25, 21) # TX,RX
IIC_PORTA = (26, 32) # I2C for 16BV demo
unit.PORTA = (
26, 32
) # seems used in the unit init!unit.get(unit.RFID, unit.PORTA) # fit ATOM?
#i2c0 = i2c_bus.easyI2C((25, 21), 0x28)
print('< Intelligent 16-BV connector with RS485 modbus & NFC program v0.7 >' +
"\r\n")
print('< Author: Ling.Zell, [email protected], 27.July.2020 >' + "\r\n")
print('#-->:i2c_bus.easyI2C(PORTA, 0x28, freq=100000)')
print('#-->:RS485_UART: TX_G25,RX_G21@ 115200')
#print('#-->: i2c_bus.easyI2C(i2c_bus.PORTA, 0x28, freq=400000)')
i2c0 = i2c_bus.easyI2C(IIC_PORTA, 0x28, freq=100000)
RFID_ID_pre = '00000000'
modbus_s.init_function(4, 1, 100, ModbusSlave.METHOD_WRITE)
modbus_s.init_function(3, 1, 100, ModbusSlave.METHOD_READ)
def calc_crc(data):
crc = 0xFFFF
for pos in data:
crc ^= pos
for i in range(8):
if ((crc & 1) != 0):
crc >>= 1
crc ^= 0xA001
else:
crc >>= 1
return crc
Slave_add = None
RTU_funct = None
value_rx_tmp = None
REG_0 = None
def modbus_recv_cb(x):
global Slave_add, RTU_funct, value_rx_tmp, REG_0
Slave_add, RTU_funct, value_rx_tmp = x.read()
label_Slave_add.setText(str(Slave_add))
Funct.setText(str(RTU_funct))
Data.setText(str(value_rx_tmp))
pass
modbus.set_recv_cb(modbus_recv_cb)
def buttonA_wasPressed():
global Slave_add, RTU_funct, value_rx_tmp, REG_0
modbus_s.send(Slave_add, RTU_funct, REG_0, 1234)
pass
btnA.wasPressed(buttonA_wasPressed)
Slave_add = 1
modbus_s.init_function(RTU_funct, REG_0, 101, ModbusSlave.METHOD_READ)
rgb.setColorAll(0x33ff33)