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μIO-Stick User Manual
2 Overview
2.2
Key Features
The µIO-Stick provides the following features:
•
Communication with the connected device via LIN, SPI and UART
•
Four GPIOs
•
PWM signal generation up to 20 kHz
•
Measurement of analog voltages up to 20 V
•
Read and keep functionality to detect reset of the connected device
•
USB HID device, no additional driver installation required
•
µIO-Stick can power a target device
•
Connected device can also be powered by external power supply for higher current
•
3 on-board status LEDs
•
Additional BSL updater GUI for BSL communication with Embedded Power devices
2.3
Block Diagram
The µIO-Stick consists of an XMC4200 micro-controller which provides the necessary hardware interface and
handles the USB and BSL protocols.
LIN and RS232 are implemented as true physical layers (using LIN and MAX transceivers), while the digital lines
(SPI, GPIOs) provide a 5V-TTL level.
In addition, a small switchable charge-pump is implemented to generate a +12 V/200 mA supply for the target
device and the integrated LIN transceiver.
Figure 2
µIO-Stick Block Diagram
Application Note
6
v1.1
2018-09-18
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