E-sports game controller solution based on NXP NxH3670&LPC55

Due to the busy daily life of modern people, entertainment is also a regulator of life stress. With the prosperity of the video game industry, some peripheral products around video games are gradually beginning to require performance and close to realistic operation.

With the NXP Wireless Gaming Controller's NxH3670 & LPC55 platform, you can play games while listening to music or game sound effects on the controller. The platform's MCU is an ARM Cotex M33 core (150 MHz) with high-speed USB and Audio wireless transmission architecture. Its specifications are more competitive in the market and closer to the needs of players.

Reference Design Features

1. Wireless and wired mode switching function

When the High Speed ​​USB VBUS Pin of the MCU detects that there is power supply from the PC, the joystick will automatically switch to wired mode. At the same time, when the lithium battery of the joystick is in low power state, it will determine whether the lithium battery is charged by the PC through the charging circuit.

When the wireless search button is pressed, the joystick MCU will transmit a signal to the NXH3670, which will search for a Dongle signal to pair with through the NXH3670 wireless function. If a wireless signal is received from the Dongle, the joystick will switch to wireless mode.

2. Input Interface

Button: Up, Down, Left, Right, X, Y, B, A, START, BACK, XE, Left Button (LB), Right Button (RB)

Joystick (16 bit ADC): Left Joystick X, Y axis, Right Joystick X, Y axis

Stick (16 bit ADC): Left Stick, Right Stick

3. Microphone & Audio

Supports mono 16 bit 48 kHz Microphone

Supports dual-channel 24 bit 48 kHz Audio

Display board photos

Solution Block Diagram

Block Diagram (Power of Main Board)

Block Diagram (Power of Dongle)

Dongle Object

Main Board Object Top

Main Board ObjectBottom

Core technology advantages

MCU ( LPC5528 ) :

● Cortex-M33 processor, running at up to 150 MHz

● Memory options: 512 KB Flash and 256 KB RAM

● High Speed ​​USB Port

● Supports 8 groups of Flexcomm functions. Each Flexcomm interface can be set as USART, SPI, I2C, I2S interface through software.

● HLQFP100 (14 x 14 x 0.5 mm), HTQFP64 (10 x 10 x 0.5 mm), VFBGA98 (7 x 7 x 0.5 mm)

Bluetooth Low Energy transceiver for audio streaming (NXH3670):

● Supports 2.4 GHz RF and 2 Mbits/s transmission efficiency

● Supports low-power Bluetooth GFSK, which can be defined as 1 Mbps or 2 Mbps transmission efficiency through commands

● AES-128 security coprocessor

● Support audio interface and audio processing accelerator

● CoolFlux DSP supporting audio processing

● Support multi-interface control, data transmission, adjustment, and test modules (I2C, I2S, I2C, SPI)

Solution Specifications

1. Provide relevant software and hardware design for customers to develop quickly.

2. Solution Design The charging and discharging circuit is designed through Battery Charger IC, Current Protection IC, MOS (FDN357N, SQ2303ES), and Schottky (PMEG4010BEA) in the module board. The module board can be powered by a lithium battery. When the lithium battery power is insufficient, it can also be powered by the USB power supply on the PC and charge the lithium battery.

3. The Main Board and Dongle of the solution module board transmit signals wirelessly through NXH3670.

4. The solution module board has 13 buttons, 2 Joysticks (16 bit ADC), 2 RT, LT 16 bit ADC buttons, 2 sets of vibration motor output ports, 1 set of Audio, Microphone, 1 set of gyroscope, and accelerometer.