Could you specify the kind of problems?
And did you also reduce the system frequency or have you just lowered the voltage, in your personal case?
I'm asking this, because in a paper I've read they've used voltage and frequency scaling in order to achieve a lower power consumption.
Search found 13 matches
- Wed Jul 12, 2017 10:43 am
- Forum: XMOS Devices
- Topic: Stability Test
- Replies: 4
- Views: 6088
- Wed Jul 12, 2017 8:59 am
- Forum: XMOS Devices
- Topic: Stability Test
- Replies: 4
- Views: 6088
Stability Test
Hello everyone, I'm currently experimenting with an XL216-Processor to reduce its power consumption. One way I'm doing this, is to reduce the voltage it's working with. Is there a known manner to test, if the processor can work stable? I was thinking of writing a short program to do some testing for...
- Wed May 10, 2017 10:09 am
- Forum: Other XMOS Development Kits
- Topic: Start up Sequence - SliceKit
- Replies: 3
- Views: 5075
Re: Start up Sequence - SliceKit
I'm using a XP-SKC-XL216 SliceKit
- Wed May 10, 2017 9:16 am
- Forum: Other XMOS Development Kits
- Topic: Start up Sequence - SliceKit
- Replies: 3
- Views: 5075
Start up Sequence - SliceKit
Hey folks, currently I'm trying to build an application that is able to power on and start processing in less than 20 ms. In an other thread I received the information, that this should be possible if the amount of code and data isn't that big. In my case every tile has to load about 8-10 kByte. The...
- Fri Apr 21, 2017 10:56 am
- Forum: Development Tools and Programming
- Topic: I2C Timing Issues
- Replies: 1
- Views: 4090
I2C Timing Issues
Hello everybody, I'm currently having some issues using an I2C communication or rather using the i2c library. It seems to have no effect if, the kbits per second parameter is changed. -- i2c_lib - snippet /** Implements I2C on the i2c_master_if interface using two ports. * * \param i An array of ser...
- Tue Mar 07, 2017 11:41 am
- Forum: Development Tools and Programming
- Topic: Two Guards for One Case
- Replies: 1
- Views: 3784
Two Guards for One Case
Hello everybody, I was working on some inter-task communication with interfaces and such things. At some point it seemed to be pretty useful to check two conditions or flags before entering a case. But my intents weren't very successful. Is this possible? Or do i have to work around it ? A little ex...
- Thu Feb 16, 2017 3:50 pm
- Forum: XMOS Devices
- Topic: Energy consumption of XL216-series
- Replies: 12
- Views: 13210
Re: Energy consumption of XL216-series
Hi, as mentioned before by henk, a good option to save energy is to shut down the processor if there will be some idle time. Now I'm curious if the boot or rather start-up time the processor needs is logged in any register. It would be nice if we could determine dynamically how long the last start u...
- Tue Feb 14, 2017 11:52 am
- Forum: Development Tools and Programming
- Topic: Channels or Interfaces for Data Flow?
- Replies: 0
- Views: 2566
Channels or Interfaces for Data Flow?
Hello everyone, In my actual project I'm planning to receive some information, do some validation and in the end I want to prepare the data for passing it via Ethernet or RMII. Right know I'm not quite sure how to organize the communication between the single tasks. https://s3.postimg.org/hyotr2jzj/...
- Fri Feb 10, 2017 10:18 am
- Forum: XMOS Devices
- Topic: Energy consumption of XL216-series
- Replies: 12
- Views: 13210
Re: Energy consumption of XL216-series
Hi, Thanks for your advice henk, with the correct address everything worked pretty good. But I've got an additional question. ;-) I already did some more or less successful testing, with the sleep mode on my sliceKit and got some inspiration from the "xCORE-200 Clock Frequency Control"- do...
- Wed Feb 08, 2017 9:50 am
- Forum: XMOS Devices
- Topic: Energy consumption of XL216-series
- Replies: 12
- Views: 13210
Re: Energy consumption of XL216-series
Hi henk, Yesterday I rummaged a bit trough the XL216 datasheet, in order to understand how to modify the the divider and the divider enable. But when I tried to set the enable a problem occured. xrun: Program received signal ET_ILLEGAL_PS, Access to invalid processor state. [Switching to tile[1] cor...