LicheeTang Anlogic EG4S20 FPGA Board Targets RISC-V Development

LicheePi has already made some interested little development board in the past with products such as LicheePi Zero, and the recently-announced SD card sized LicheePi Nano board, but their  latest development board may ever be more intriguing.

LicheeTang features Anlogic EG4S20 FPGA – unrelated to Amlogic – which run a RISC-V softcore,  and all is packaged in a small small form factor as we’ve come to expect with LicheePi boards.

LicheeTang
Click to Enlarge

LicheeTang specifications:

  • FPGA – Anlogic EG4S20BG256 with 20K logic unit (LUT4/LUT5 hybrid architecture), about 130KB SRAM, 64MBit SDRAM
  • Storage – 8Mbit flash, micro SD card slot, optional SPI NOR flash
  • Expansion Connectors
    • FPC40P socket for RGB LCD, VGA adapter board, or high speed (12-bit 1MSPS) DAC module
    • FPC24P socket for DVP camera, or high speed ADC module
    • Through holes and castellated holes exposing over 130 I/Os
  • Debugging – FPGA JTAG chip connected over micro USB port
  • Misc – RGB LED
  • Power Supply – 5V via micro USB port; 3-channel DCDC power supply chip,
  • Dimensions – Small, and breadboard friendly 
RISC-V FPGA Board Pinout Diagram
Click to Enlarge

The FPGA can emulate “Hummingbird E200/E203 RISC-V core” to help people get familiar with the open source MCU. There are more details in LicheePi github account with FPGA example, and more details about the RISC-V softcore:

The Hummingbird E200 core is a two-stages pipeline based ultra-low power/area implementation, which has both performance and areas benchmark better than ARM Cortex-M0+ core, makes the Hummingbird E200 as a perfect replacement for legacy 8051 core or ARM Cortex-M cores in the IoT or other ultra-low power applications.

To boost the RISC-V popularity and to speed up the IoT development in China, we are very proud to make it open-source. It is the first open-source processor core from China mainland with industry level quality and state-of-art CPU design skills to support RISC-V instruction set.

Our ambition is to make “Hummingbird E200” become next 8051 in China, please go with us to make it happen.

The ultimate goals are to replace legacy 8051 core for better performance, and/or replace Cortex-M core for lower cost. So that promises to be interesting, and potentially not only for LicheeTang, if Hummingbird E200 gets traction, and ends up in Chinese made micro-controllers.

RISC-V FPGA Board Display

More details can be found in the official website (in Chinese), and further documents have also been uploaded in Baidu. LicheeTang is also listed in Taobao, but I’m unclear about the price since there are multiple options, and none of them are selectable on my side. One person in LicheePi Telegram group informed me the price was 89 CNY ($13).

Thanks to Iliya for the tip.

Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.

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33 Comments
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Anton Fosselius
2 years ago
zepan
zepan
2 years ago

it use its own IDE build by Qt, work on windows and linux.

Anton Fosselius
2 years ago

Aha, from: http://weifang.dzwww.com/wfxwn/201807/t20180727_16580467.htm (chinese, google translate FTW)

“In order to meet the different IO quantity requirements of users and the requirements of PCB area, Shanghai Anlu’s EAGLE series provides the following device packages:

  1, EG4X20BG256, BG256 package and Spartan6 LX16 BG256 device pin compatible, users can directly transplant the design without changing the original hardware;

  2, EG4A20BG256, BG256 package and Cyclone4 EP4CE10 BG256 device pin compatible, users can directly transplant the design without changing the original hardware;”

Now, if they could get a good open source toolchain and a community i can see a bright future for Anlu 😉

zepan
zepan
2 years ago

in fact, they have hard core RV inside, but the performance is not good, they block it.

Nobody Of Import
Nobody Of Import
2 years ago

What use is a hard-macro when it doesn’t perform well? Don’t waste the silicon on that rubbish and hand me more CELLS… X-D

I’m at least passingly interested in this design- it’s got some small potential to pour an even FASTER softcore in there (VexRiscv) on a budget and room to spare on cellcount. Not knocking the softcores being fielded there, but there’s better as long as there’s a GOOD Verilog/VHDL flow for the FPGA there. I’d prefer FOSS, but I’ll take “functional”.

Mike
Mike
2 years ago

Hi
please be aware that Zpean / creator of LicheePi Zero, is a scam, he never fulfiled he’s indiegogo campain, and has never delivered the boards!!

just check the comments on idegogo site:
https://www.indiegogo.com/projects/licheepi-zero-6-extensible-linux-module-on-finger-computers#/comments

Philipp Blum
Philipp Blum
2 years ago

Thanks for sharing this info.

Nobody Of Import
Nobody Of Import
2 years ago

@tkaiser: Thanks for the clarification

olin
olin
2 years ago

I’d like to say that the fact somebody has actually got the product delivered doesn’t mean the producer is not (or is in fact) a scammer. I don’t have any experience with Zepan nor Lichee products, so I can not comment on this specific case. But I was scammed (you decide whether or not) by a person who successfully funded his campaign on indiegogo, made the product from the raised money and then fulfilled only a fraction of indiegogo backers. This fraction of backers got the product and were happy, wrote positive reviews and created a buzz. Then the campaigner… Read more »

tkaiser
tkaiser
2 years ago

> I don’t have any experience with Zepan nor Lichee products

Me neither. I only find it confusing when people talk about Indiegogo when the product the blog post talks about is solely available through Taobao. As far as I understood backing a project is something entirely different than buying a product?

dgp
dgp
2 years ago

>As far as I understood backing a project is something
>entirely different than buying a product?

From what I’ve seen it’s not. A lawyer (I think it was the guy from youtuberlaw) went over this. TL;DR; version was even if kickstarter/indiegogo campaigns seem like they should be backing something that might not turn up most campaigns are setup in a way that would seem to any reasonable person as being a preorder.
So the expectation is that you’d get what you ordered.

Anyhow didn’t the vega+ guys get debt collectors sent in by indiegogo because they failed to deliver?

zepan
zepan
2 years ago

hi, i’m zepan, the fact is some package contains magnets or something, rejected by customhouse. and i have resend most of them, and post a ticket in bbs, but little of them noticed it:http://bbs.ilichee.cc/t/track-number-update-2018-01-23/305
in fact, I sold thousands LicheePi in taobao, and hundred thousand for commercial applications, it is true product.

exquisitus
exquisitus
2 years ago

well, hello, zepan, my old buddy. wow, just wow. adding much insult to injury… why in god’s name do you HAVE to do that? i mean, come on, for god’s sake… do you really believe that your former backers to be a bunch of random distracted zombies… if you are not a scammer, they, prey tell, where are my pledges, exactly how i pledged them??? you sent me worthless second hand crap from some old dump in china, completely unrelated to my pledges. random crap. hellooo? i emailed you more then a dozen time on different of your contact emails,… Read more »

JotaMG
JotaMG
2 years ago

Could you please provide some evidence, photos, etc, of your accusations??
Of the “garbage” you received?

zepan
zepan
2 years ago

hi, did u read my post upon? I can’t goto gmail as my VPN server is down last year, that’s why I can’t rcv and reply my gmail at all, I’m not mean to ignore the email. but I can see the bbs, and reply the topics on bbs.

pizza
pizza
9 months ago

is your email fixed?

marcin longlastname
1 year ago

I wouldn’t be surprised if he ignored your emails because you clearly type very poorly (no capital letters, run on sentences, etc), and are extremely rude.

pizza
pizza
9 months ago

where can i ask you questions about lichee pi nano?

Nobody Of Import
Nobody Of Import
2 years ago

Well, DRAT.

I was looking forward to having another play in the space that empowers even moreso than an ESP32 or a High-Five board.

zepan
zepan
2 years ago

Lichee Dan (AI module), 400~800M freq, RV64GC, 1.5TB/s band width, 200~400 GOPS, in 1 Watt power consume, in $10 price, will release soon~

Jasbir
Jasbir
2 years ago

What SOC will be used for Lichee Dan?

zepan
zepan
2 years ago

it is dual core RV64GC, 400MHz freq(can be turbo to 800MHz), 1.5TB/s bandwith, 200~400GOPS, in 1Watt power consume, object recognition 60fps @ VGA, chip in $3(order ~100k), module maybe in $10 for lichee dan.
you can join tg group: https://t.me/joinchat/HH5CKkoLTnnxtdIl2U1Psg

zepan
zepan
2 years ago

Hi mike, what’s ur account, let me check ur order. As some package have magnets(speaker) inside, will be possiblly reject from customhouse. and I use international express agent, he didn’t told me some package were rejected, and didn’t send those package back to me. As I need cross GFW to rcv my gmail email, I discard gmail last year; so, when I notice backer said package not rcved, it is this year Jan, I feel sorry for them who lost their package, and resend packages to them , but at that time I didn’t have some suit in crowd funding,… Read more »

andrea
andrea
2 years ago

hi Zepan, do you plan to make the Lichee Tang available for the Western market? Taobao is not that easy for us in Europe..

zepan
zepan
2 years ago

I won’t sell by myself, but some agent like banggood will sell it.

pizza
pizza
9 months ago

why don’t you have an aliexpress store to sell to other countries?

exquisitus
exquisitus
2 years ago

yeah? the real facts are freaking different. but you are not much into facts, are you?

exquisitus
exquisitus
2 years ago

the bit about “expensive suit” is especially insulting, as that’s complete and utter hogwash.
where does zepan come up with this stuff…

the truth is, i got garbage, literally garbage, 5 (five) times in a row… sounds like a plan to me.
how does that make ANY sense? it doesn’t.

so then, it follows, garbage in china is more expensive than electronic parts?

xanady, the realm of wonders, truly.
ruled by the magnificent zepan khan, supreme lord of the imagination.

exquisitus
exquisitus
2 years ago

exactly this, i am another one scammed as well.

pizza
pizza
9 months ago

The boards are real you can buy them on aliexpress which leads me to believe that zepan is not a purposeful scammer.

John S.
John S.
2 years ago

This is up for preorder on banggood now. It’s $24.66 (w/preorder discount), or there’s a bundle with an FT2232D JTAG debugger included for $33.99.

ttrme-koko
ttrme-koko
1 year ago

mruby needed 400KiB
https://github.com/mruby/mruby
is too small ram

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