Car music rhythm atmosphere lighting solution based on the JIHAI G32A1445 car general-purpose MCU

With the deep penetration of smart car technology, car lighting, as an important part of car design, is reshaping the way drivers interact with cars, and is being optimized and upgraded from simple lighting tools to intelligent safety devices that carry more functions and different application scenarios. Modern smart car models are widely equipped with car lighting systems such as headlights, interior ambient lights, and taillights. In addition to effectively ensuring the safety of car driving and lighting quality, they can also provide drivers with higher comfort, stronger directionality, and a better driving experience.

The development of LED technology has greatly improved the sophistication of automotive lighting systems, and all the advantages of automotive LEDs rely on flexible, safe, scalable, and cost-effective automotive-grade chips. The G32A1445 automotive general-purpose MCU designed by JIHAI for automotive electronics applications covers body control systems, entertainment systems, power systems, and safety systems, meeting the needs of different automotive subdivision functions and maximizing the performance and efficiency of smart headlight equipment.

G32A1445 automotive general purpose MCU key features:

Based on Arm® Cortex®-M4F core, 112MHz operating frequency

Passed AEC-Q100 Grade 1 automotive reliability certification

Passed ISO 26262 ASIL-B product functional safety certification

Flash 512KB, SRAM 64KB, 4KB CFGRAM can be used for SRAM or EEPROM, Flash/SRAM with ECC

Analog peripherals: 12-bit ADCx2, COMP×1, PDU×2

Communication peripherals: LPI2Cx1, LPUARTx3, LPSPIx3, CANx3 (all support CAN-FD)

Security: CSEc encryption service engine, system memory protection unit MPU, support for Secure Boot, built-in CRC/WDT/EWDT module

-40℃~125℃ wide temperature range, meeting the complex working environment of automobiles and ensuring stable operation of the system

G32A1445 Car Music Rhythm Atmosphere Light Solution

The car music rhythm ambient light changes brightness and theme color according to the ups and downs of music, bringing users great audio-visual enjoyment and immersive driving experience. In the future, with the upgrading of consumption and improvement of functions, the car music rhythm ambient light will gradually become the standard of high, medium and low-end models, and its market penetration and volume will further increase.

In response to current application needs, Jihai provides flexible and easily expandable automotive chip products and solutions to meet customers' differentiated designs, and has in-depth cooperation with Huixin Microelectronics (a professional automotive solution provider) to launch the cost-effective G32A1445 car music rhythm atmosphere light solution. In line with the current development requirements of car music rhythm atmosphere lights, and starting from actual projects, it not only meets low-power design requirements, but also helps customers accelerate product application development.

This solution uses the data provided by the audio acquisition end, which is quickly calculated and processed by G32A1445 to accurately control the frequency domain of the audio, making the linkage between audio and lighting more vivid. At the same time, it uses automotive CAN communication for data transmission, links multiple LEDs, and achieves synchronous operation.

G32A1445 car music rhythm atmosphere light solution implementation block diagram

G32A1445 car music rhythm atmosphere light solution features:

One channel for CAN communication and one channel for LIN communication

Supports two-way UART communication and CAN physical layer, and can realize two-way light board bus control

Support CAN audio signal processing and microphone pickup input function

Support dual-channel LED light panels to achieve corresponding lighting effects following the rhythm of music

More EMI friendly power supply

Supports soft start, EN control, and low Iq power supply with PG output

The G32A1445 series MCUs are easy to use and have code reusability features, which helps to quickly implement iterative solutions.

Provide development tools, mass production software (program code), demo boards, technical manuals, SDK, etc. for efficient design and development projects.

The rich peripheral configuration of G32A1445 reserves various feasible solutions for developers: upward, the interaction with the body controller BCM can be configured, and downward, the lighting effect display of the audio acquisition processing can be independently controlled; the three-way automotive CAN communication interface is compatible with CANFD, which greatly enhances the performance of the assembly EMC and is more in line with the development of automotive products.

JIHAI is committed to providing the industry with leading intelligent mobility chip solutions, aiming to meet the complex functional requirements of more automotive electronic applications through innovative design and functional expansion. At the same time, JIHAI will continue to work with partners to promote the localization of chips and help customers cope with various challenges during the development of projects.