Microsemi Category - Page 4 of 4 - CNX Software

April 11, 2018April 11, 2018 by Jean-Luc Aufranc (CNXSoft) - No Comments

Banana Pi BPI-AI-Voice is a $169 Speech Recognition Development Kit based on MicroSemi ZL38063

SinoVoIP has just launched BPI-AI-Voice development platform for speech recognition on Aliexpress for $169, and excluding the different PCB color, it is a clone of the official $299 Microsemi AcuEdge Development Kit for Amazon AVS, which is based on MicroSemi ZL38063 audio processor and comes with two microphones. BPI-AI-Voice key features: Audio Processor – MicroSemi ZL38063 Storage – U2 SPI flash to store ZL38063 firmware Audio 4x on-board digital microphones (AKU441) supporting a 2 microphone configuration for 180° and 360° audio pick-up. 2x low cost class D audio amplifier (NCP2820) Expansion Headers JMMA1 audio header for digital microphone, analog out, and 3 GPIOs JM1-4 digital microphone headers for off-board microphones 40-pin P2 header to connected to Raspberry Pi 3 (I2S, SPI and 8x GPIO used) Debugging – JAIB2/2 auto tuning headers, micro USB port. Power Supply – 5V via micro USB port Dimensions – 70 mm × 66 mm Temperature […]

February 18, 2018February 18, 2018 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

A First Look at ESP32-LyraTD-MSC Audio Mic HDK with Baidu DuerOS Assistant

Earlier this year, Espressif Systems had unveiled their ESP32-LyraTD-MSC Audio MiC HDK (Hardware Development Kit) which features an ESP32-WROOM module, a 4-mic array DSP, 3 microphones, an audio jack, and various I/Os. I received the board a couple of weeks ago, and while there’s no public information released yet, the company provided me with ESP32-LyraTD-MSC User Guide in English. Eventually, I’d expect Google Assistant and Amazon Alexa to be supported, but in the meantime I had to leverage my (lowly) Chinese language skills to get started since the kit is pre-loaded with firmware connecting to Baidu DuerOS voice assistant. ESP32-LyraTD-MSC Unboxing The kit came in a bland Espressif Systems carton box. Inside the package, I could only find one kit comprised of two boards. The bottom board read ESP32_MicrosemiDSP_Mainboard-V1, and does not show much apart from marking for connectors, headers and the power switch. While the top comes with eight […]

February 6, 2018February 17, 2018 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

MicroSemi ZL38063 Audio Processor is Designed for Microphone Arrays

I’ve already been experimenting with DIY smart speakers and corresponding services for example using ReSpeaker board with Microsoft Bing Speech API, or Orange Pi Zero with Google Assistant SDK. But so far all the hardware platforms I used only came with one microphone, no microphone array that help with wake word detection in noisy environments. Last week-end, I received Espressif Audio Mic HDK, an ESP32 board with a 3-microphone array which I’ll review a in a few weeks once documentation becomes available and I clear some other items in my review list. In the meantime, I checked out the hardware, and found out the mainboard also comes with Microsemi ZL38063 audio processor specifically designed for microphone array. The chip was released las year, and can be already found in the company’s AcuEdge Development Kit for Amazon AVS, but since I’m going to use a board based on ZL38063 I’d thought […]

January 11, 2018 by Jean-Luc Aufranc (CNXSoft) - 16 Comments

$34 SmartFusion2 Maker Board Arm Cortex-M3 + FPGA Board Supports ESP32 & ESP8266 Modules

Xilinx Zynq SoCs are probably the most well-known FPGAs with ARM cores, as their Cortex A9/A53 cores can run Linux, but they are not the only ones. Microsemi launched SmartFusion2 SoC comprised of FPGA fabric and an Arm Cortex-M3 core in 2013, as well as a $300 development kit. The company has now partnered with Digikey to launch SmartFusion2 Maker Board, a low-cost evaluation platform for the SoC that comes with Gigabit Ethernet, a USB port, a connector for ESP8266 module, PCB footprint for ESP32 module, among other features like a light sensor, LEDs, and buttons. SmartFusion2 maker board (M2S010-MKR-KIT) main features & specifications: SoC – Microsemi SmartFusion2 M2S010 SoC with: Arm Cortex-M3 @ 166 MHz, 6oKB+80KB eSRAM, 256KB eNVM FPGA with 12,084 logic element, 400 Kbits RAM Storage – 16 Mbit SPI Flash Connectivity Gigabit Ethernet via VSC8541 PHY, RJ45 connector Connector for ESP8266 (Sparkfun WRL-13678 – not included) […]

December 15, 2017December 15, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

Microsemi VSC7513 and VSC7514 MIPS SoCs for Ethernet Switches Get Initial Mainline Linux Support

Microsemi VSC7514 is a 10-port Gigabit Ethernet (GbE)/SMB switch supporting a combination of 1G and 2.5G Ethernet ports, and VSC7513 comes with basically the same features except it’s limited 8 ports. Both SoCs include a MIPS processor with DDR3 memory interface, and support industrial and enterprise Ethernet switching features such as VLAN and QoS processing. Microsemi VSC751x Ocelot family was unveiled in June 2016, but I only heard about them today, as Free Electrons recently added initial support for VSC7513 & VSC7514 chip into mainline Linux with the patch series available here. Microsemi VSC7514 specifications & features: CPU / Memory Interface – Integrated 500 MHz MIPS 24KEc CPU with MMU and DDR3/DDR3L SDRAM controller Ethernet Connectivity – 4x dual media copper ports, 2x 1G SGMII ports, and 2x 1G/2.5G SGMII ports Host CPU Interfaces – PCIe 1.x and NPI CPU interface Internal shared memory buffer (8 queues per port) Jumbo […]

July 12, 2016July 12, 2016 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

SiFive Introduces Freedom U500 and E500 Open Source RISC-V SoCs

Open source used to be a software thing, with the hardware design being kept secret for fear of being copied, but companies such as Texas Instruments realized that from a silicon vendor perspective it would make perfect sense to release open source hardware designs with full schematics, Gerber files and SoM, to allow smaller companies and hobbyists, as well as the education market, normally not having the options to go through standard sales channels and the FAE (Field Application Engineer) support, to experiment with the platform and potentially come up with commercial products. That’s exactly what they did with the Beagleboard community, but there’s still an element that’s closed source, albeit documented: the processor itself. But this could change soon, as SiFive, a startup founded by the creators of the free and open RISC-V architecture, has announced two open source SoCs with Freedom U500 processor and Freedom E300 micro-controller. Freedom […]