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iCESugar 是MuseLab基于Lattice iCE40UP5k设计的开源FPGA开发板开发板小巧精致资源丰富板载RGB LEDSwitchTYPE-C-USB, Micro-USB大部分IO以标准PMOD接口引出可与标准PMOD外设进行对接方便日常的开发使用。
板载的调试器iCELink经过精心设计支持拖拽烧录用户只需将综合出的FPGA bitstream文件拖拽至虚拟U盘中即可实现烧录。iCELink亦支持虚拟串口以和FPGA进行通信同时引出JTAG接口方便用户对FPGA上实现的SoC进行调试。
Lattice的iCE40系列芯片在国外的开源创客社区中拥有大量拥趸其所有的开发软件环境亦均为开源。一般来说假若您使用Xilinx或者Altera系列的开发板您需要安装复杂臃肿的IDE开发环境(而且一般为盗版,使用存在一定法律风险), 在未开始开发前首先还先需要学会如何操作其复杂的IDE。 iCE40则使用完全开源的工具链进行开发包括FPGA综合yosys布线arachne-pnr & nextpnr, 打包烧录icestorm编译gcc只需在Linux下输入数条命令即可将整套工具链轻松安装随后即可开始您的FPGA之旅而且这一切都是开源的您可仔细研究整个过程中任何一个细节的实现非常适合个人研究学习对于有丰富经验的开发者亦可用来作为快速的逻辑验证平台。典型的基于iCE40系列的开源开发板有iCEBreaker、UPduino、BlackIce、iCEstick、TinyFPGA 等社区中拥有丰富的demo可用于验证测试或者作为自己开发学习的参考。
iCESugar是iCESugar系列的第一款开发板[iCESugar-nano](https://github.com/wuxx/icesugar-nano)(基于Lattice iCE40LP1k) 和 [iCESugar-pro](https://github.com/wuxx/icesugar-pro)(基于Lattice ECP5)已经发布,以匹配不同的功能性能的需求。
![icesugar_1](https://github.com/wuxx/icesugar/blob/master/doc/iCESugar_1.jpg)
# 芯片规格
iCE40UP5K-SG48

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* [Reference](#reference)
# iCESugar
iCESugar is a FPGA board made by MuseLab, it base on Lattice iCE40UP5k, on board peripheral include RGB LEDSwitchTYPE-C-USB, Micro-USBmost IO out with standard PMOD interface
iCESugar is a FPGA board made by MuseLab, which is base on Lattice iCE40UP5k, on board peripherals include RGB LEDSwitchTYPE-C-USB, Micro-USBmost IO out with standard PMOD interface
the on board debugger iCELink (base on ARM Mbed DAPLink) support drag-and-drop program, you can just drag the FPGA bitstream into the virtual disk to program, iCELink also support USB CDC serial port and JTAG
iCESugar is the first board of iCESugar series FPGA Board, [iCESugar-nano](https://github.com/wuxx/icesugar-nano)(base on Lattice iCE40LP1k) and [iCESugar-pro](https://github.com/wuxx/icesugar-pro)(base on Lattice ECP5) are already released for difference needs.
![icesugar_1](https://github.com/wuxx/icesugar/blob/master/doc/iCESugar_1.jpg)
# Hardware