Obscure Far-Eastern Controllers

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#1
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A while back I bought a couple of these (don't ask)...

 

 

...it records any sounds and then plays them back, pitch shifted up, whilst moving its head up and down.

 

Inside we have...

 

 

 

What's impressive is the amount of processing power packed into a 14-pin SOIC which'll cost peanuts...

 

 

Attachment(s): 

#1 Hardware Problem? https://www.avrfreaks.net/forum/...

#2 Hardware Problem? Read AVR042.

#3 All grounds are not created equal

#4 Have you proved your chip is running at xxMHz?

#5 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand."

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also impressive that you found a datasheet for it!

 

How about development tools ... ?

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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awneil wrote:

How about development tools ... ?

 

There are some links to tools on the manufacturers website but it requires registration to see anything. I might get myself a disposable email address later and register.

#1 Hardware Problem? https://www.avrfreaks.net/forum/...

#2 Hardware Problem? Read AVR042.

#3 All grounds are not created equal

#4 Have you proved your chip is running at xxMHz?

#5 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand."

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Brian Fairchild wrote:
don't ask
Oh but I must!

"Experience is what enables you to recognise a mistake the second time you make it."

"Good judgement comes from experience.  Experience comes from bad judgement."

"Wisdom is always wont to arrive late, and to be a little approximate on first possession."

"When you hear hoofbeats, think horses, not unicorns."

"Fast.  Cheap.  Good.  Pick two."

"We see a lot of arses on handlebars around here." - [J Ekdahl]

 

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Nice chip but probably extremely pricey laugh

 

They have a whole bunch of interesting chips of all types..motor drivers , audio chips, etc...even more processor chips

 

http://www.chipsourcetek.com/Uploads/file/(CN)MG32F02A_072%200132DataSheet_V1.31.pdf

 

Wonder why ya can't buy em anywherezz?

 

When in the dark remember-the future looks brighter than ever.   I look forward to being able to predict the future!

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Great! A bit of Chinglish cheeky (used to be Jinglish)

VPD VPS Decoupling Cap 47uF, please close to IC nearly

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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joeymorin wrote:

Brian Fairchild wrote:
don't ask
Oh but I must!

 

Oh, you know, bored, eBay, money in Paypal account, wine...

 

Could be worse though. One night a friend bought a sailing boat on eBay after a bottle, or two, of wine for about £$20. Which I think we'll agree is a bargain price. The problems were...

 

1) it was buyer collects

2) the trailer it was pictured sitting in wasn't included in the sale and wasn't available to borrow

3) it was situated about an hour from the coast

4) it was about 200 miles from where my friend lives

5) my friend lives over an hour from the coast

 

...he paid and then never bothered to collect it.

#1 Hardware Problem? https://www.avrfreaks.net/forum/...

#2 Hardware Problem? Read AVR042.

#3 All grounds are not created equal

#4 Have you proved your chip is running at xxMHz?

#5 "If you think you need floating point to solve the problem then you don't understand the problem. If you really do need floating point then you have a problem you do not understand."

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Brian Fairchild wrote:

Oh, you know, bored, eBay, money in Paypal account, wine...

I was hoping for something more along the lines of "I lost a bet..." or "You should see the other guy..."  but this will do ;-)

 

Brian Fairchild wrote:

...he paid and then never bothered to collect it.

Not bad for an evening's entertainment!

"Experience is what enables you to recognise a mistake the second time you make it."

"Good judgement comes from experience.  Experience comes from bad judgement."

"Wisdom is always wont to arrive late, and to be a little approximate on first possession."

"When you hear hoofbeats, think horses, not unicorns."

"Fast.  Cheap.  Good.  Pick two."

"We see a lot of arses on handlebars around here." - [J Ekdahl]

 

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If you can put up with the squeaky voice (and who can ?) Dave Jones did an eevblog about these micros:

https://www.eevblog.com/2018/11/07/eevblog-1132-the-3-cent-microcontroller/

 

another article:

https://cpldcpu.wordpress.com/2019/08/12/the-terrible-3-cent-mcu/

 

There's a whole world of ultra cheap silicon that "Westerners" don't really hear about.

 

Last Edited: Fri. May 15, 2020 - 10:35 AM
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Once you figure out how to reprogram the unit, I dare say the first program with be to have the cute creature utter a random selection of profanities.

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Kartman wrote:
utter a random selection of profanities.
I don't need no damned toy to do that for me.

Ross McKenzie ValuSoft Melbourne Australia

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About 20 years ago I programmed a Samsung 4 bit MCU with a LCD controller. (a  SAM47  part).

 

For development there was a P (eprom part), and also a OTP version, for small production. The hole setup was made for cheap high volume with the program in a metal mask.

(Like a 8051, 8751 the eprom version  and 8031 romless).

 

We don't see many of those chips in the west.

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About 35 years ago, I programmed some Toshiba 4 bitters. Hard to imagine these days, with 8 bitters costing pennies.

It was an interesting experience, though.

 

 

 

 

Four legs good, two legs bad, three legs stable.