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µVision User's Guide
µVision3 Overview User Interface Creating Applications Utilities Debugging Debug Commands 
Debug Functions 
Creating Functions Invoking Functions Predefined Functions __acos __asin __atan __cos __exp __log __log10 __sin __sqrt __tan _RBYTE _RDOUBLE _RDWORD _RFLOAT _RWORD _sleep_ _TaskRunning_ _WBYTE _WDOUBLE _WDWORD _WFLOAT _WWORD exec getdbl getint getlong 
memset printf rand rwatch swatch twatch wwatch User Functions Signal Functions Differences Between µVision3 and C Differences Between µVision3 and dScope Simulation Flash Programming Dialogs Example Programs Command Line AppendixPredefined Functions
µVision3 includes a number of predefined debug functions that are always available for use. They cannot be redefined or deleted. Predefined functions are provided to assist the user and signal functions you create.
The following table lists all predefined µVision3 debug functions.
| Return | Name | Parameter | Description |
|---|---|---|---|
| void | exec | ("command_string") | Execute Debug Command |
| double | getdbl | ("prompt_string") | Ask the user for a double number |
| int | getint | ("prompt_string") | Ask the user for a int number |
| long | getlong | ("prompt_string") | Ask the user for a long number |
| void | memset | (start_addr, value, len) | Fill memory with constant value |
| void | printf | ("string", ...) | Works like the ANSI C printf function |
| int | rand | (int seed) | Return a random number in the range 0 to 32767 |
| void | rwatch | (ulong address) | Delay execution of signal function until read access to address |
| void | swatch | (float seconds) | Delay execution of signal function for specified time |
| void | twatch | (ulong states) | Delay execution of signal function for specified number of CPU states |
| void | wwatch | (ulong address) | Delay execution of signal function until write access to address |
| uchar | _RBYTE | (address) | Read char on specified memory address |
| uint | _RWORD | (address) | Read short int on specified memory address |
| ulong | _RDWORD | (address) | Read long on specified memory address |
| float | _RFLOAT | (address) | Read float on specified memory address |
| double | _RDOUBLE | (address) | Read double on specified memory address |
| int | _TaskRunning_ | (ulong func_address) | Checks if the specified task function is the current running task. Only available if a DLL for RTX Kernel Awareness is used. |
| double | _sleep_ | (ulong milli_seconds) | Delay script execution for a specified time |
| void | _WBYTE | (address, uchar val) | Write char on specified memory address |
| void | _WWORD | (address, uint val) | Write short int on specified memory address |
| void | _WDWORD | (address, ulong val) | Write long on specified memory address |
| void | _WFLOAT | (address, float val) | Write float on specified memory address |
| void | _WDOUBLE | (address, double val) | Write double on specified memory address |
| double | __acos | (double x) | Calculate arc cosine |
| double | __asin | (double x) | Calculate arc sine |
| double | __atan | (double x) | Calculate arc tangent |
| double | __cos | (double x) | Calculate cosine |
| double | __exp | (double x) | Calculate exponential function |
| double | __log | (double x) | Calculate natural logarithm |
| double | __log10 | (double x) | Calculate common logarithm |
| double | __sin | (double x) | Calculate sine |
| double | __sqrt | (double x) | Calculate the square root |
| double | __tan | (double x) | Calculate tangent |
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