SW500007 Microchip Technology, SW500007 Datasheet - Page 174

• Manufacturer Part Number: SW500007
• Description: PICC-18 PRO
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC18r

Specifications of SW500007

• Supported Families: PIC18
• Core Architecture: PIC
• Software Edition: Professional
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC18
• Tool Function: Compiler
• Tool Type: Compiler
• Lead Free Status / RoHS Status: Not applicable / RoHS Compliant
• For Use With/related Products: PIC18 Series
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 015P; 778-1002; 778-1002

Library Functions
__checksum_failed
Synopsis
void __checksum_failed(void)
Description
This routine will be called during the execution of compiler-generated startup code if it has been
requested that a built-in checksum and verification routine be included, and the result of the veri-
fication does not match the expected result. The default implementation of this function contains
a busy loop which serves no purpose other than to prevent the program from proceeding to main.
It is implement a customised response to a checksum validation failure according to your system’s
ability. Some of the possible actions that could be included in a customised routine could be to blink
an error LED, re-flash the program image or call for help. If this routine is allowed to return, it will
resume execution of the compiler-generated startup code and proceed to main. If action was taken
to correct the problem, it may be preferred to call for a system reset rather than proceeding through
to main as this will cause the checksum to be verified again prior to entering main.
Notes
Be aware that this routine will have been entered prior to execution of startup code that would
normally clear and initialize data memory. If your customised routine uses variables, their initial
states should be assigned by your routine prior to their use.
See also
ram_test_failed()
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