chinas the clone of the classic '51

Alexander-Dan · Joined: 13 Mar 2014 Posts: 111 Location: S.Posad

hello!
accidentally found some very cheap microcontrollers in china.
A clone of the classic 51:
integrated bootloader, usb support, accelerated version. Minimal changes in register bits.
Has anyone tried these products? i'm very curious!

http://www.wch-ic.com/products/category/5.html - series 55x

http://www.wch-ic.com/products/CH552.html
http://www.wch-ic.com/products/CH551.html

SZTRAD · Joined: 30 Dec 2019 Posts: 165

Yes, I have.
What do you need to know?
The manufacturer is quite well known for making improved copies of the STM32.
I'm just afraid we won't understand each other linguistically.
RS

Alexander-Dan · Joined: 13 Mar 2014 Posts: 111 Location: S.Posad

SZTRAD · Joined: 30 Dec 2019 Posts: 165

Hello,
Chinese-only manual and run it through the translator.
The links I send are in multiple versions. Yes uses USB. There is already an implementation of so kernel arduina. I send links for study.
I don't know what you're hoping for, I got it tested and found out it worked, but the manufacturer's support is practically none put it off, but if you insist on the 8051 core you'll look at the silabs.
He has more support and is in a normal language for us. I don't want to offend my fellow Japanese who is here, but for us Europeans it's indecipherable. Smile

Promised links
https://hackaday.io/project/169671-ch552-dragon
https://github.com/DeqingSun/ch55xduino
https://github.com/Blinkinlabs/ch554_sdcc

RS

Alexander-Dan · Joined: 13 Mar 2014 Posts: 111 Location: S.Posad

plouf · Joined: 19 Jan 2012 Posts: 78 Location: Athens,Greece

how "cheap" is cheap ?

SZTRAD · Joined: 30 Dec 2019 Posts: 165

Hi

These chips are also produced.
http://www.stcmicro.com/stc/stc51.html
Support is better drivers are also in Keil. And they have manuals in English.
There was one company, but I can't find samples and notes. But I suppose these clones Mark will never add so translators.
I can't imagine what would be good these days. The silabs on the other side are still making them, so I guess there will be an outlet.
So if you want to play, go ahead. If I hadn't been called in for tests, I wouldn't be playing.
RS

SZTRAD · Joined: 30 Dec 2019 Posts: 165

Hi
I knew there was another company that makes "clones" of the 8051.
Coincidentally I have now been commissioned to test one product and there is an IO N76E003AT20 used. Which is an alternative (almost to the 89C4052) with more memory etc. It is made, like many other "aperture" products, by Nuvoton. The price is also interesting.
https://direct.nuvoton.com/en/8051-all-series/
Just for info if you ever get bored and want to play around.
It is used in this product for example
https://pl.aliexpress.com/item/1005001706122431.html?spm=a2g0o.productlist.0.0.14a831cbrDGSFZ&algo_pvid=34e763cc-3b52-468d-b8c4-78b17203eeea&algo_expid=34e763cc-3b52-468d-b8c4-78b17203eeea-19&btsid=0b0a555a16202993376258136ef69e&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

RS

Alexander-Dan · Joined: 13 Mar 2014 Posts: 111 Location: S.Posad

hi
Yes, I know about Nuvoton: they are developing clones of various uC families.
Thank you.

(Dziękuję Ci!)

Alexander-Dan · Joined: 13 Mar 2014 Posts: 111 Location: S.Posad

Hello,

plouf · Joined: 19 Jan 2012 Posts: 78 Location: Athens,Greece

Amazing chips... Really
Worth take a look sometime i see them as low as 0,3eur + ship !! With 8k rom!

Chinese companies have this drawback. Hardly reply to hobbyst/small/outside china
Which is shame...

Nice works thanks a lot

Alexander-Dan · Joined: 13 Mar 2014 Posts: 111 Location: S.Posad

I think if we are interested in purchasing volumes, then I will be able to communicate with this manufacturer: I have constant 3-4 contacts with Chinese suppliers.
I also have several agents in China, they work with all countries.

albertsm · Joined: 09 Apr 2004 Posts: 5916 Location: Holland

thanks for the info and sharing.
i will implement it in BasCom-8051.
I must have a STC chip but i am not sure if it is the same. will check that.
otherwise i contact you for testing.

plouf · Joined: 19 Jan 2012 Posts: 78 Location: Athens,Greece

implementation means (almost) full working ?
i.e SPI / i2C / 2x UART / ADC etc ?

saying because alexander said that in his dat some of them do no work ..

sending chip's is the easiest Smile

, i will order some to test only for the sake of quriosity.. only 0.3 with 8k adc etc (and 17kbyte at 0.33) !?

Alexander-Dan · Joined: 13 Mar 2014 Posts: 111 Location: S.Posad