M8单片机恒流型数字电子负载

kirich

Hi, my name is Andrew.
Bought a load of electronical M6 M8. But accidentally brought it down, very similar to the failure of the processor.
The processor can set a new one, but I do not have the firmware for it.
Help please.

I have a board with 2004 display and encoder
Designed by Gandf 2013-1-1
By Drageng/Yleee
M8 V6

GandF, how can I contact you?

honggun

原来俄国来的朋友发不了短消息，看来只能楼主来解答了。

kirich

I am very hard to understand Chinese.
I was trying to figure out how to write to the author.
I know the Russian language and little English.
That's why I wrote here, sorry.
An opportunity author can give your email or Skype.

I tried to write to the author. But it is impossible
抱歉，您目前还不能使用发送短消息功能

kirich

honggun
Sorry that I write here, I can send you a private message.
Thank you, but I have a board version 6, does it fit the program from version 7?
And display 2004

My board
And now displays :(

kazuyuki

kirich 发表于 2014-12-25 18:37
honggun
Sorry that I write here, I can send you a private message.
Thank you, but I have a board v ...

You can download the attachment file.

kirich

Very very big thank you.
I will try later today, bought a new processor.
After that, I plan to increase the maximum current of 5 Amps to 15 Amps.
May suggest a link, how to do it correctly?
This device is planned to review at the biggest online shopping (in Russian).
An example of my review, if you're interested - http://mysku.ru/blog/aliexpress/24986.html
and further - http://mysku.ru/blog/china-stores/27072.html

kirich

Very very big thank you.

I will try later today, bought a new processor.
After that, I plan to increase the maximum current of 5 Amps to 15 Amps.
May suggest a link, how to do it correctly?
This device is planned to review at the biggest online shopping (in Russian).
Examples of my reviews, if you're interested - (how to make a link to my blog?)

kirich

I have a suggestion to the author.
I will write a review on this product on the website, which publishes links to products online stores in China.
If the author had made a version of computer programs in English (and possibly in Russian, I would have helped), then it would add buyers from Russia, Ukraine, Belarus, Kazakhstan.

Author interested this?
As in the review will be fully applying of the device as well as a more powerful version of its improvements.
I am an engineer electronics.

kirich

Tried to write firmware without having to replace the processor.
All perfectly worked.
Why has deteriorated previous firmware is unclear.
Now plans to make more power, but also would like to replace the shunt resistors for current sensor ACS712
Has anyone done this?

kirich

kazuyuki 发表于 2014-12-25 20:12
You can download the attachment file.

Excuse me, can I have a current firmware 15A ± 15mA and (or) 30A ± 30mA?
I would like to make the device more powerful with multiple FETs and operational amplifiers.

The now firmware  -
0-5 Amps
0-0.25 volts
5-15 Amps
0.25-0.25 V
:(

right after
0-15 Amps
0-0.25 V or
0-30 Ampere
0-0.25  V PWM?
I will use this circuit current gain -