Smart supermarket toy implementation for Networked Embedded Systems exam on Launchpad CC2650 with contiki-ng
3b01e04379
The 8259a PIC has a well known problem of generating flaky IRQ7 interrupts. The correct solution is to always check if an IRQ7 interrupt is real or not by probing the PIC's ISR register. This check is only mandatory if the IRQ7 is actually being used by the system. More importantly, the handler should NEVER send and EOI if the interrupt was spurious. This patch addresses this issue by implementing a fake empty handler for this IRQ and, as stated, NOT sending the EOI. |
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| core | ||
| cpu | ||
| dev | ||
| doc | ||
| examples | ||
| lib/newlib | ||
| platform | ||
| regression-tests | ||
| tools | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .travis.yml | ||
| CONTRIBUTING.md | ||
| LICENSE | ||
| Makefile.include | ||
| README-BUILDING.md | ||
| README-EXAMPLES.md | ||
| README.md | ||
The Contiki Operating System
Contiki is an open source operating system that runs on tiny low-power microcontrollers and makes it possible to develop applications that make efficient use of the hardware while providing standardized low-power wireless communication for a range of hardware platforms.
Contiki is used in numerous commercial and non-commercial systems, such as city sound monitoring, street lights, networked electrical power meters, industrial monitoring, radiation monitoring, construction site monitoring, alarm systems, remote house monitoring, and so on.
For more information, see the Contiki website: