Introduction

About This Document

This document is a reference document and usage instructions for FT.S-GPIO tell intended for Compulab Tensor line of add on boards.

Product Description

Based on the ARM Cortex M0 CPU, Emulates COM port on USB and enables the user to control connected GPIO’s.

Overview

Compulab PN FT.S_GPIO - TELL-GPIO

Highlights

• Implementation of USB to GPIO without the need for special drivers or deep system knowledge.
• Enables fast prototyping and fast time to market.
• Can be used with popular coding language’s like Python
• Open software and Hardware for even more flexibility
• Build-in bidirectional isolation based on the ADM3260 chip.
• Build-in 4 Isolated GPIO’s expandable up to 20 with FT.V-TERM4 adapter.
• Easily updatable SW using built-in USB bootloader.

Software

The source code and Binary are available github Repo

Bugs and futures can be opened in the Github repository.

Hardware

Schematics and Gerber files are available here:

TODO add the location.

Each GPIO can be programmed for Output or input direction.

• Output - The GPIO Can be controlled for High or LOW output state.
• Input - The user can read if the GPIO is now in a HIGH state or LOW, state.

Note: GPIO's initial state is Output low.

Pinout

Pin Name	Pin Number	Pin Type	Description
VDD	1	Power	Power supply voltage
GND	2	Power	Ground
GPIO_0	3	I/O GPIO	Extension I/O GPIO
GPIO_1	4	I/O GPIO	Extension I/O GPIO
GPIO_2	5	I/O GPIO	Extension I/O GPIO
GPIO_3	6	I/O GPIO	Extension I/O GPIO
GPIO_4	7	I/O GPIO	Extension I/O GPIO
GPIO_5	8	I/O GPIO	Extension I/O GPIO
GPIO_6	9	I/O GPIO	Extension I/O GPIO
GPIO_7	10	I/O GPIO	Extension I/O GPIO
GPIO_8	11	I/O GPIO	Extension I/O GPIO
GPIO_9	12	I/O GPIO	Extension I/O GPIO
GPIO_10	13	I/O GPIO	Extension I/O GPIO
GPIO_11	14	I/O GPIO	Extension I/O GPIO
GPIO_12	15	I/O GPIO	Extension I/O GPIO
GPIO_13	16	I/O GPIO	Extension I/O GPIO
GPIO_14	17	I/O GPIO	Extension I/O GPIO
GPIO_15	18	I/O GPIO	Extension I/O GPIO
GPIO_16	19	I/O GPIO	Extension I/O GPIO
GPIO_17	20	I/O GPIO	Extension I/O GPIO
GPIO_18	21	I/O GPIO	Extension I/O GPIO
GPIO_19	22	I/O GPIO	Extension I/O GPIO
GPIO_20	23	I/O GPIO	Extension I/O GPIO
LED1	24	LED (Green)	On-board LED
LED2	25	LED (Green)	On-board LED

Commands

Command	Description
#n,x	Set GPIO "n" to "x" (1 - High, 0 - Low)
@n,x	Set GPIO "n" direction to "x" (1 - Output, 0 - Input)
$n	Read GPIO "n" state (High or Low, for Input direction)

Using FT.S-GPIO from Terminal

To use FT.S-GPIO from a terminal, follow these steps:

1. Connect the FT.S-GPIO board to your computer using a USB cable.
2. Open a terminal program on your computer.
3. Configure the terminal program to use the following settings:
   • Baud rate: 115200
   • Data bits: 8
   • Parity: None
   • Stop bits: 1
   • Flow control: None
4. Send commands to the FT.S-GPIO board using the command format described in the Commands table above.