42 lines
2.3 KiB
Text
42 lines
2.3 KiB
Text
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There are 4 examples included in this directory:
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1) xdptx_intr_example.c : This interrupt example shows how to set up the
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interrupt system and specify the interrupt handlers for when a DisplayPort
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interrupt event occurs. An interrupt controller with a connection to the
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DisplayPort interrupt signal needs to exist in the hardware system.
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2) xdptx_poll_example.c : This interrupt example shows how to poll the
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DisplayPort TX instance's registers for DisplayPort interrupt events.
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3) xdptx_timer_example.c : This timer example shows how to override the default
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sleep/delay functionality for MicroBlaze. A timer needs to exist in the
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hardware system and will be used for sleep/delay functionality inside of a
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callback function. The default behavior in MicroBlaze for sleep/delay is to
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call MB_Sleep from microblaze_sleep.h, which has only millisecond accuracy.
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For ARM/Zynq SoC systems, the supplied callback function will be ignored -
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the usleep function will be called since the SoC has a timer built-in.
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4) xdptx_selftest_example.c : This self test example will perform a sanity check
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on the state of the DisplayPort TX instance. It may be called prior to usage
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of the core or after a reset to ensure that (a subset of) the registers hold
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the default values.
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Each of these examples are meant to be used in conjunction with
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xdptx_example_common.[ch] which holds common functionality for all examples.
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After importing the examples, these files will need to be manually copied into
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the example src/ directory.
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This code shows how to train the main link and set up the
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Additionally, in order to be able to use the interrupt, polling, and timer
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examples, the user will need to implement and link the following functions:
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1) Dptx_InitPlatform : This function needs to do all hardware system
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initialization. This function is invoked when calling
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2) Dptx_ConfigureStreamSrc : This function needs to configure the source of the
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stream (pattern generators, video input, etc.) such that a video stream, with
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timings and video attributes that correspond to the main stream attributes
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(MSA) configuration, is received by the DisplayPort Tx. The examples call
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this function from the Dptx_Run->Dptx_StartVideoStream functions in
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xdptx_example_common.c.
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Note: All example functions start with Dptx_*, while all driver functions start
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with XDptx_*.
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