 MCB950 User's Guide | |
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MCB950 User's Guide
Introduction Setup Theory of Operation Writing Programs
Keil PK51 Professional Developer's Kit Application Notes Creating Application Programs Creating a Project Setting Target Options Configuring Output Files Building a Program Programming Flash Downloading with Flash Magic Downloading from µVision Debugging Programs Debugging with ULINK Debug Interface in Startup Code Debug Interface with Flash Magic Debugging with ISD51 Running the ISD51 Example Serial I/O with ISD51 Debugging with FS2 Setup the FS2 System Navigator Debug Interface in Startup Code Debug Interface with Flash Magic Example Programs Using ULINK Target DriverDebugging with ISD51
The ISD51 In-System Debugger is a small debug monitor that links with your LPC9XX target program. ISD51 interfaces to the µVision Debugger using a standard 8051 on-chip UART and allows you to view memory, set breakpoints, single-step, and perform numerous debugging operations.
ISD51 is royalty-free and may be included with your end-product for field-level software debugging and monitoring. Your software is safe from unauthorized debugger access since the original source code is required for debugging.
A pre-configured example is in the folder KEIL\C51\ISD51\EXAMPLES\PHILIPS LPC95x. You may run the ISD51 example on the MCB950 Board or use this project as a template for your own applications.
You may also use the UART interface for serial I/O when you run the ISD51 In-System Debugger. This allows you to use printf test output in your application program.
ISD51 offers several configuration functions that you may add to your C code for program startup. Use only one at a time of the following functions:
- The ISDinit routine initializes ISD51 for communication with the µVision Debugger. It does not wait for communication to be established. After invoking this routine, your target program continues execution normally.
- The ISDwait routine initializes ISD51 for communication with the µVision Debugger and waits until communication is established. This function returns after the µVision Debugger connects with ISD51.
- The ISDcheck routine checks to see if the µVision Debugger is trying to connect with the target system. If it is, ISD51 is initialized for communication. If you use ISDcheck to initialize ISD51, your program must periodically invoke it.
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