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Introduction
This page gives an overview of tmrctr driver which is available as part of the Xilinx Vivado and SDK distribution.
Driver Sources
The source code for the driver is included with the Vitis Unified Software Platform installation, as well as being available in the Xilinx Github repository.
Driver Name | Path in Vitis | Path in Github |
|---|---|---|
| tmrctr | <Vitis Install Directory>/data/embedded/XilinxProcessorIPLib/drivers/tmrctr | https://github.com/Xilinx/embeddedsw/tree/master/XilinxProcessorIPLib/drivers/tmrctr |
| Info |
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Note: To view the sources for a particular release, use the rel-version tag in github. For example, for the 2020.1 release, the proper version of the code is: https://github.com/Xilinx/embeddedsw/tree/release-2020.1/XilinxProcessorIPLib/drivers/tmrctr |
The driver source code is organized into different folders. The table below shows the tmrctr driver source organization.
Directory | Description |
|---|---|
doc | Provides the API and data structure details |
data | Driver .tcl , .mdd and .mdd fileyaml files |
examples | Example applications that show how to use the driver features |
| src | Driver source files, make and cmakelists file |
Note: AMD Xilinx embeddedsw build flow has been changed from 2023.2 release to adapt to the new system device tree based flow. For further information, refer to the wiki page Porting embeddedsw components to system device tree (SDT) based flow - Xilinx Wiki - Confluence (atlassian.net).
The .yaml(in data folder) and CMakeLists.txt(in src folder) files are needed for the System Device Tree based flow. The Driver .tcl and .mdd files are for the older build flow which will be deprecated in future.
Driver Implementation
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Links to Examples
Examples Path:
https://github.com/Xilinx/embeddedsw/tree/release-2020.1xlnx_rel_v2023.2/XilinxProcessorIPLib/drivers/tmrctr/examples
Test Name | Example Source | Description |
|---|---|---|
| TMRCTR Interrupt mode examples | This examples demonstrates different tmrctr features using interrupt mode. | |
| TMRCTR polled mode examples | This examples does basic read and write test from the flash device in Interrupt mode. | |
| TMRCTR Self test example | This example performs a self test to ensure that the hardware was built correctly. |
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TMRCTR fast interrupt example:
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Expected output
| Code Block | ||
|---|---|---|
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Successfully ran Tmrctr interrupt Example |
TMRCTR PWM example:
This example demonstrates the use of tmrctr PWM APIs.
Expected output
| Code Block | ||
|---|---|---|
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Successfully ran Tmrctr PWM Example |
TMRCTR low level example:
This example deals with the tmrctr low level API's. It starts the timer/counter such that its incrementing by default in the polled mode and checks if the count is changed.
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Expected output
| Code Block | ||
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Successfully ran Tmrctr selftest Example |
Changelog
2023.2
2023.1
2022.2
2022.1
2021.2
- None
2021.1
2020.2
2020.1 - 2019.1
- None
2018.3
2018.2-2018.1
- None
2017.3