This page gives an overview of scutimer driver which is available as part of the Xilinx Vivado and SDK distribution.
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.
The driver source code is organized into different folders. The table below shows the scutimer driver source organization.
Provides the API and data structure details
Driver .tcl and .mdd file
Example applications that show how to use the driver features
Driver source files
For a full list of features supported by this IP, please refer section 8.2 of Zynq TRM
- 32-bit counter
- 8-bit prescaler
- can be used in normal mode or auto reload mode
- Support both increment and decrement counting
- The Timer hardware supports interrupts
Known issues and Limitations
Refer to the driver examples directory for various example applications that exercise the different features of the driver. Each application is linked in the table below. The following sections describe the usage and expected output of the various applications. These example applications can be imported into the Vitis IDE from the Board Support Package settings tab.
Links to Examples
Polled mode example
This example configures the timer/counter in the polled mode such that count decrements gradually.
SCU Timer Polled Mode Example Test
Successfully ran SCU Timer Polled Mode Example Test
Interrupt mode example
This example initializes the timer/counter, enables auto reload mode and uses the driver in the interrupt mode.
SCU Timer Interrupt Example Test
Successfully ran SCU Timer Interrupt Example Test