Technical Note (8 & 16
Contents
1. closed in quotes is considered as a comment Stimulating an interrupt with HI WAVE Once you have generated your Stimulation file can execute it in the HI WAVE simulator e First open a stimulation component Start HI WAVE component menu click on Open and in the list choose stimulation e Click with the right key and in the pop up menu choose Open file e Select the txt file corresponding to the interrupt you want to simulate e Click with the right key and in the pop up menu choose Execute e Load your application in the simulator and run it After 10 000 000 cycles an interrupt is generated Note e Some stimulation files are available in the demo directory corresponding to CPU you are using io_ex txt io_var txt and io_int txt Page 1 of 2 metrowerks Technical Note 8 amp 16 bits TN 115 e For more details about those kind of txt file for example periodical interrupt generation please refer to your HI WAVE user manual which is on your distribution CD in the directory CDROM HIWARE Docu Simulating Peripherals Using sample IO DLLs Basically the debugger is delivered with some basic peripheral simulation module For each CPU a DLL is available allowing to simulate e A periodical Timer e An SCI port This allows you to simulate application using a hardware timer or a serial port The table below displays the DLLs associated with the different CPUs CPU Sample DLL HCO5 Sample05 i2. metrowerks Technical Note 8 amp 16 bits TN 115 I O Simulation and I O Stimulation The HI WAVE simulator is basically a CPU and memory simulator It can be easily extended to allow simulation of internal or external peripherals In order to be able to extend the simulator with peripherals behavior you can e Simulate them e Stimulate them Stimulating Peripherals To stimulate an interrupt in the simulator the stimulation component can be used Using this feature you can generate stimulate interrupts or memory accesses from an internal or external I O device using commands from a text file Please refer to your Debugger manual chapter True Time I O Stimulation for additional information about stimulation Example of interrupts stimulation Stimulation commands look as follows 10000000 RAISE 7 3 test_interrupt In the above command 10000000 means that after 10 000 000 cycles have been executed the command RAISE must be executed RAISE 7 3 The RAISE command generates an interrupt The first parameter in the command is the vector number of the interrupt which must be generated This number 7 in our example is arbitrary chosen To export this example your own different target take a look at the interrupt vector table in the technical data manual of the matching MCU The number 3 is the priority level of the interrupt This is only relevant for a HC16 CPU test_interrupt the string en
3. o0 Sample08 io Sample 11 io Sample 12 i0 Sample 16 i0 SampleSt7 io Using Available Simulation DLLs Some I O simulation DLLs are available for some MCU These DLLs simulate some of the MCU on chip peripherals They usually do not simulate all the on chip peripherals from the MCU Please contact your Metrowerks Sales representative to check the I O simulation modules currently available Extending the Simulator with your own DLLs Metrowerks also sell a product called Peripheral Builder This tool provides you with all the required libraries and file necessary to implement your own I O simulation DLL The peripheral builder also comes with a wizard helping you to create a DLL which is compatible with the HI WAVE debugger Please contact your Metrowerks Sales representative for additional information about this tool Page 2 of 2
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