Two processors in the Edison?

Question

So I've heard that there are two processors in the Edison, the Quark and the Atom. But when looking at the system diagrams they are shown as one.

Can martinkronberg, huzefa_nk or mcb1 clarify how the two work together?

huzefa_nk · Accepted Answer

Yes it should be possible, the only thing is the same pin won't be accessible from both Atom and MCU at the same time. There is also ways to communicate between Atom and MCU, look at one of the example here

huzefa_nk · Answer

From what I understand the Atom CPU drives the pins when you upload it via Arduino IDE. The GPIO pins can also be programmed via MCU using the MCU SDK. This would help offload some of the stuff from main processor and also help in power saving (your CPU can sleep while your MCU is working on the GPIO pins). Both the dual core Atom CPU and the MCU are shown as single SoC in the figure that is shared above.

Workshopshed · Answer

Also a good tip in the article about how to start things as a service The Yocto Project* Linux* uses systemd, so we need to create “service” file to add the script to auto start. Create the file/lib/systemd/system/startup-script.service: [Unit]
Description=Startup User Script
After=syslog.target
[Service]
ExecStart=/home/root/startup.sh
[Install]
WantedBy=multi-user.target Add the service to auto start: systemctl enable startup-script

koudelad · Answer

Hello, the same question was asked here and explained by an Intel employee. https://communities.intel.com/thread/109824

Two processors in the Edison?

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