Title: Intel S1000 CRB tests
Description:
This test illustrates the various features enabled on Intel S1000 CRB.
Features exhibited in this test set
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GPIO toggling
- GPIO_23 configured as input
- GPIO_24 configured as output and interrupt capable
- GPIO_23 and GPIO_24 are shorted
- Upon toggling GPIO_23, GPIO_24 also changes state appropriately and
also calls its callback function if interrupt is configured
I2C slave communication
- Intel S1000 CRB I2C configured as master, 7 bit mode, standard speed
- 2 LED matrices are configured as slaves
- The LED matrices are written over I2C to emit blue light and red
light alternately
- Read functionality verified by reading LED0 after every write and
dumping the result on to the console
Interrupt handling
- All peripheral interrupts are enabled by default
- Each peripheral interrupt can be disabled by calling irq_disable().
For e.g. GPIO IRQ can be disabled by calling "irq_disable(GPIO_DW_0_IRQ);"
UART prints
- Displays the various prints dumped to the console by the above modules
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Building and Running Project:
This project outputs to the console. It can be built and executed
on Intel S1000 CRB using the flyswatter2 as follows:
make flash
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Troubleshooting:
Problems caused by out-dated project information can be addressed by
issuing one of the following commands then rebuilding the project:
make clean # discard results of previous builds
# but keep existing configuration info
or
make pristine # discard results of previous builds
# and restore pre-defined configuration info
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Sample Output:
***** BOOTING ZEPHYR OS v1.9.99-intel_internal - BUILD: Oct 31 2017 14:48:57 *****
Sample app running on: xtensa Intel S1000 CRB
Reading GPIO_24 = 0
LED0 = 10
GPIO_24 triggered
Reading GPIO_24 = 1
LED0 = 41
1787644930