Shulou(Shulou.com)11/24 Report--

CTOnews.com November 25, according to the release of OpenHarmony, the high-performance MCU general development board code based on BK7235 series launched by Broadcom Integration (Shanghai) Co., Ltd. has been formally integrated into the backbone of OpenAtom OpenHarmony (referred to as "OpenHarmony"), which means that Broadcom Integration has made a breakthrough in the security of OpenHarmony open source operating system and the richness of Internet of things connection.

Facing the era of full scene, full connection and full intelligence, OpenHarmony builds the framework and platform of intelligent terminal device operating system based on open source, and promotes the Internet of everything.

BK7235 is a Wi-Fi 6 MCU chip developed by Broadcom and shipped in bulk. Recently, BK7235's code has been integrated into the OpenHarmony backbone. With its rich storage and interface resources and highly reliable security architecture, it can provide immediate commercial and continuous iterative options for control, voice and lightweight audio.

BK7235 single-core version is equipped with 656KB RAM, dual-core version is equipped with 800KB RAM, and you can choose high-speed DDR DRAM with internal packaging up to 8Mbyte, which makes BK7235 suitable for single-ecological single-cloud connection, and can also support multi-ecological and multi-cloud concurrent connection. High-speed 320MHz RISC-V, support for DSP and vector AI operation instructions, single-core and dual-core dynamic power management, so that BK7235 can not only achieve complex intelligent voice and visual algorithms, but also make low-power live connections.

The single-core version of BK7235 supports 26 GPIO, supports 5V IO and 5V direct power supply, integrates 5V DCDC and 5V instantaneous high voltage protection circuit, and is suitable for 5V household appliances with large power fluctuation. BK7235 dual-core version, supports 48 GPIO, integrates dual-wheat voice ADC and DAC, supports CIS camera, supports 720p 16-bit RGB LCD display, and integrates hardware image encoding and decoding, suitable for offline voice, visual doorbell and HD HMI control panel.

CTOnews.com learned that BK7235 has Wi-Fi 6 certification, Bluetooth 5.2 certification, Matter 1.0 certification and supports Amazon Alexa Ecological Express MSS certification. With rich internal computing and storage resources, BK7235 can quickly build multi-ecological and multi-link network devices for customers.

BK7235 uses independent hardware isolation security unit to provide security protection for the whole system, which not only supports common security startup Secure boot and secure storage, but also enables authentication algorithm and adopts highly secure Pmur384 encryption protocol, and is viewed in white box by third-party security institutions. The whole chip has passed PSA Level 1 security authentication.

BK7235's hardware cryptography algorithm not only supports commonly used business ciphers such as AES, RSA and ECC, but also supports national passwords SM2,SM3 and SM4, providing more efficient and secure protection for devices.

BK7235's cryptographic algorithms-commercial passwords (such as AES, RSA, ECDSA) and TRNG (True Random number Generator), comply with FIPS 1402 Level 2 certification; national secrets (SM2, SM3, SM4) comply with OSCCA Level 1 certification of the State Commercial password Administration Office of China; the whole chip complies with PSA Level 1 certification, which can provide comprehensive security protection for network equipment.

BK7235 has been integrated into the OpenHarmony backbone, and SDK suitable for various applications is ready. Link to the main warehouse code:

Device_soc_beken: https://gitee.com/openharmony/device_soc_beken

Device_board_beken: https://gitee.com/openharmony/device_board_beken

Vendor_beken: https://gitee.com/openharmony/vendor_beken

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