CrowdSupply项目:便携式、开源RISC-V SoC开发套件Precursor,precursor 2024-04-18 03:18:34 0 0 CrowdSupply刚上线一个众筹项目 - 称之为Precursor的便携式、开源RISC-V SoC开发套件,使用了分别来自Xilinx和Lattice的两颗流行的FPGA。 从外观上看,它像极了一个智能手机,它号称,通过编程,你确实可以把它当成一个智能手机或平板电脑使用,且你可以对它有完全的控制,因为你可以编程它的每一个bit,沉到硬件的最底层! 套件的正面照片 背面照片 拆开了由以下一些部分组成: 一块电路板 一个单色的LCD屏 一个键盘 看看键盘的电路板: 内部的结构: 高度安全、完全可信任 从下面的对比图中可以看到其主要的功能: 再跟其它的FPGA开发板比较一下: 价格高是有原因的。 下面是其结构框图: 功能特性: Made for developers No adhesives holding the bezels in place – just one screw driver is all it takes Want to add hardware? Maybe a cellular modem? No problem! Battery compartment is a blank check for your peripherals Install a smaller battery for more space Flex PCB breakout for 8x FPGA GPIO into the battery compartment Bezel is made out of FR-4, and can be user-customized to hold additional components Inspect, modify and compile your SoC and embedded controller from source All source fileshosted on GitHubfor convenient fork, pull request, and issue tracking Open source PCB and case design Easy-access developer's cable (included) Low-level debugging (GDB + Chipscope) and firmware flashing via developer's cable plugged into a custom Raspberry Pi HAT (included) Middleware debugging via USB cable via wishbone tunnel Open source to the core Extendable and modifiable Slim and light mobile form factor 6063 alloy aluminum case -– 3D files provided, so you can mill your own case! FR-4 front bezel -– PCB source provided ABS + PC polymer antenna radome -– 3D printable 69 mm x 138 mm x 7.2 mm 96 grams reference weight Compare to iPhone X at 70.9 mm x 143.6 mm x 7.7 mm and 174 grams Accessible mechanical design User-customizable CPUs Manages power, standby, and charging functions Tested with 18 MHz VexRISC-V, RV32I, no cache -L1 speed grade for longer battery life Tested with 100 MHz VexRISC-V, RV32IMAC + MMU, 4k L1 I/D cache Xilinx XC7S50 primary System on Chip (SoC) FPGA iCE40UP5K secondary Embedded Controller (EC) FPGA 16 MB external SRAM 128 MB Flash 100 MHz DDR 8-bit wide bus for fast XIP code performance Dual hardware TRNG External discrete noise generator In-SoC ring oscillator based TRNG Inspectable I/O Physical keyboard with changeable layout overlays 200 ppi black and white LCD (336 x 536 resolution), 100% inspectable with standard optical microscope Both keyboard and LCD are backlit for night-time use Modular keyboard PCB -- customize layouts, add sensors, or swap in a touch surface Audio with safe defaults Integrated 0.7 W speaker for notifications Vibration motor 3.5 mm headset jack No integrated microphone -- audio surveillance is not possible when headset is unplugged Integrated Wi-Fi Sandboxed in a hardware-delineated untrusted domain Silicon Labs WF200C chipset USB Type-C port Supports charging at 5 V; over-voltage protection tolerant to 20 V Power negotiation to 5 V @ 1.5 A (source and sink) Supports legacy USB 2.0 full-speed PHY Basic DRP negotiation hardware support 1100 mAh Li-Ion battery Approx. 100 hours standby with Wi-Fi + embedded controller + static display enabled Approx. 700 mW "on-state" (most features enabled and active, backlight off) power draw, or 5.5 hours continuous use Integrated gas gauge for more accurate battery life estimate Full charge in about three hours Runtime depends on user application Anti-tamper features User-sealable metal can for trusted components Dedicated real-time clock (RTC) with basic clock integrity monitoring Power monitors trip reset in case of power glitches Always-on accelerometer/gyro to detect movement in standby Support for instant secure erase via battery-backed AES key and self-destruct circuit 责任编辑:xj 原文标题:便携、安全、开源RISC-V SoC开发套件 文章出处:【微信公众号:FPGA入门到精通】欢迎添加关注!文章转载请注明出处。 收藏(0)