Industrial Shields M-DUINO PLC ARDUINO ETHERNET 58, Руководство пользователя

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Ref. IS.MDUINO.58+ Rev. 0: 30-08-2019
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To enable I2C the switches SCL/I2.6 & SDA/I2.5 must be set to OFF mode. In this mode the
inputs are totally disabled and the I2C is now enabled.
Industrial Shields does not provide any library to implement the I2C as it can be used the
standard library of Arduino called Wire.
10.4 SPI
The M-Duino pins used for the SPI bus are summarized in the table below. For SPI bus MISO,
MOSI and CLOCK pins are common to all the connected devices to the M-Duino, conversely,
each of the connected devices will have a single and dedicated SS pin.
Function M-Duino connection Mega board pin
MISO 50 S0 50
MOSI 51 SI 51
CLOCK 52 SCK 52
Reset Reset Reset
SS SCL/SDA/RX0/TX0/RX1/TX1/RX3/TX3/Pin2/Pin3 21/20/1/0/19/18/15/14/2/3
Check the switch configuration at section 8 to enable SS pins.
10.5 TTL
M-Duino has two TTL ports, RX0/TX0, RX1/TX1. TTL0 is accessed with the function Serial (pins 0
and 1 of the Arduino Mega). TTL1 is accessed with the function Serial1 (pins 18 and 19 of the
Arduino Mega).
In order to use the TTL pins the configuration of the switches have to be the following one:
If the switches RX1/I1.6(I1.1) & TX1/I1.5(I1.0) are in OFF mode, the RX1/TX1 will be enabled. In
order to use TTL3 these switches must be in OFF mode.
10.6 Ethernet
M-Duino Ethernet port controller is based on w5500 IC, which is the compatible IC compatible
with Arduino Ethernet2 Shield libraries. All Ethernet shield Arduino libraries are compatible
with the M-Duino. In the M-Duino, W5500 IC communicates to the Mega board via SPI bus (SS
Arduino Mega pin 10).
Switch Analog Shield
ON OFF
C ZONE
RX1/I1.6 I1.6 RX1
TX1/I1.5 I1.5 TX1