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Zest_Interface_RS232

Overview

The Zest_Interface_RS232 is an electronics development board for 6TRON opensource platform.It offers 6TRON users a RS232 interface to devices, systems and sensors communicating with low power over a long distance.

The Zest_Interface_RS232 is built around the MAX3227IDBR ,a full-Duplex RS-232 transceiver with 1 Driver and 1 Receiver from Texas instrument. The tranceiver provides the electrical interface between an asynchronous communication controller and the serial-port connector.It operates at data-signaling rates of 1 Mbit/s in normal operating mode and a maximum of 30-V/µs driver output slew rate.

Zest_Interface_RS232

Specifications

CategoryZest_Interface 
MAX3227IDBR FeaturesRS-232 Interface , Single Ch RS-232 Line Drv/Rcvr Operates at Least 1 Mbit/s Auto-Powerdown Plus Feature Automatically Disables Drivers  UART interface
ADP7118 3.3V, 200mA, Low-Dropout Linear Regulators
Connectivity 80-pin 6TRON header 6-pin S06B-ZESK-2D header 1 x 4-pin header
Board size 80 x 39 mm
Power Supply 3.3 to 12V from stack, 3.3V internal

Block Diagram

The graphics below gives an overview of the board features and connections.

Zest_Interface_RS232 block diagram

80-pin 6TRON connector

Description6TRON functionPin numberPin number6TRON functionDescription
-VJACK12VJACK-
-VJACK34VJACK-
-VHV56VHV-
-VHV78VHV-
-DIO8910VIN_EN-
-DIO71112DIO9-
-DIO61314DIO10-
-MD1516DIO11-
-DIO51718DIO12DIO12
GroundGND1920GNDGround
GroundGND2122GNDGround
6TRON Stack Power SupplyVIN2324VIN6TRON Stack Power Supply
6TRON Stack Power SupplyVIN2526VIN6TRON Stack Power Supply
-VB_EN2728DIO13DIO13
-VB_OUT2930DIO14DIO14
-DAC13132DIO15DIO15
-ADC43334DIO16DIO16
-ADC33536DIO17DIO17
-ADC23738DIO18DIO18
-ADC13940GND-
-EXT_NRST4142GND-
DIO4DIO44344VREF-
DIO3DIO34546DIO19-
DIO2DIO24748DIO20-
DIO1DIO14950DIO21-
-WKUP5152DIO22-
-ICAPT5354DIO23-
-PWM35556DIO24-
-PWM25758DIO25-
-PWM15960DIO26-
-SPI1_SS6162DIO27-
-SPI1_SCK6364DIO28-
-SPI1_MISO6566DIO29-
-SPI1_MOSI6768DIO30-
UART core to ZestUART1_TX6970DIO31-
UART Zest to coreUART1_RX7172DIO32-
-I2C1_SDA7374DIO33-
-I2C1_SCL7576DIO34-
-CAN1_TX7778DIO35-
-CAN1_RX7980DIO36-

Software Support

The Zest_Radio_RS232 provide a demo example developed using MBed Os. The board can run on Zest Core development boards.

Ressources

Application notes

  • Powering 6TRON board

  • exemple soft