Forum

Please consider registering
guest

Log In Register

Register | Lost password?
Advanced Search

— Forum Scope —

  

— Match —

   

— Forum Options —

   

Minimum search word length is 4 characters - maximum search word length is 84 characters

Topic RSS
86Duino gets hot
2014 年 04 月 03 日
03:48:07
blaxxun
New Member
Forum Posts: 7
Member Since:
2014 年 04 月 03 日
Offline

Hi my name is Chris and this is my first post here in this forum.

I got my 86Duino today and after plugging it i found out that it gets relatively hot.
You can put your finger on it so its not very hot but still hot.

Since i only need some precise FPU funktionality and not an ultrafast calculation microcontroller
i was wondering if its possible to lower the CPU clock from 300MHz down to something cooler like 100MHz or even 50MHz.

Greets,
ChriS

2014 年 04 月 03 日
19:09:19
Android_Lin
Moderator
Forum Posts: 211
Member Since:
2014 年 04 月 01 日
Offline

Hi, ChriS

Really, it is useful that get the lower CPU temperature by reducing the clock.
We are making a new tool to do this but it is experimental stage currently.
After the tool works normally, we will release it for anyone need to use. Smile

2014 年 04 月 03 日
20:41:36
blaxxun
New Member
Forum Posts: 7
Member Since:
2014 年 04 月 03 日
Offline

Hello,

Thanks for the reply.
Thats good to know. Smile

When do you think this CPU temperature tool is available?

Greets,
ChriS

2014 年 04 月 07 日
20:09:53
Android_Lin
Moderator
Forum Posts: 211
Member Since:
2014 年 04 月 01 日
Offline

Hi,

Today, we successfully reduce the CPU clock from 300MHz to 200MHz. (200MHz is the lowest clock for Vortex86EX CPU)
Then we measure and compare their diffrence of the temperature between 200MHz and 300MHz via measuring on 86Duino CPU cooler.
It is 46.7 degree C on 200MHz and 59.3 degree C on 300MHz.

If the process is well, the CPU temperature tool is available on this week.

2014 年 04 月 09 日
09:24:42
blaxxun
New Member
Forum Posts: 7
Member Since:
2014 年 04 月 03 日
Offline

Hi Lin,

thanks for this info.

This sounds already very good.
I will give it a try as soon as your Tool is out! Smile

2014 年 04 月 09 日
21:34:28
Android_Lin
Moderator
Forum Posts: 211
Member Since:
2014 年 04 月 01 日
Offline

Hi, ChriS

We add this function into the SysImage today. Try to download it and select "Setting 86Duino CPU clock" option in SysImage to reduce CPU clock. Smile

Download SysImage and restore it to your SD card as below pages:
1. Windows: http://www.86duino.com/index.php?p=3203
2. Linux: http://www.86duino.com/index.php?p=3299
3. MacOSX: http://www.86duino.com/index.php?p=3227

SysImage tutorial:
http://www.86duino.com/index.p.....p=3245#ch4

Thanks.

2014 年 04 月 10 日
00:48:55
mrZagg
New Member
Forum Posts: 10
Member Since:
2014 年 03 月 13 日
Offline

so is there a source for the 86duino bios and the programs of the 86duino sysimage? that would be nice.

2014 年 04 月 10 日
23:29:40
Android_Lin
Moderator
Forum Posts: 211
Member Since:
2014 年 04 月 01 日
Offline

Hi, mrZagg,

86Duino BIOS is base on coreboot BIOS. It also is a open-source BIOS, you can refer it in this web:

http://www.coreboot.org/Downlo.....d_coreboot

Additional, we push 86Duino SysImage to GitHub. The 86Duino SysImage tool is a sketch, you can directly copy/paste it into 86Duino IDE and compile/upload it. Smile

https://github.com/roboard/SysImage

2014 年 04 月 11 日
00:49:44
mrZagg
New Member
Forum Posts: 10
Member Since:
2014 年 03 月 13 日
Offline

Thanks Laugh

Forum Timezone: Asia/Taipei

Most Users Ever Online: 66

Currently Online:
5 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

Dinosaur: 27

leutenecker: 13

mrZagg: 10

lukeross: 8

tomka: 8

smeezekitty: 8

hippy: 8

Ekkehard: 8

UIdahoCIT: 8

blaxxun: 7

Member Stats:

Guest Posters: 0

Members: 1541

Moderators: 14

Admins: 5

Forum Stats:

Groups: 2

Forums: 10

Topics: 239

Posts: 1082

Newest Members: nhollywoodmarli, bat869cube672, lenggeleranto, iknowesp, dimka, elihu, Woodrowcercraby, Robertnalty, Homerwoppy, RonaldLew

Moderators: Glaux: 70, uaa: 11, guigra: 17, asian55: 22, Android_Lin: 211, bcarroll: 12, cucubutter: 84, recycled-air: 12, stevemork: 16, zerozaber: 52, pongraczi: 20, George Andrews III: 56, poto: 11, garpastym: 20

Administrators: eveshih: 1, anthony: 31, viky6: 0, roboard: 135, hcl: 0