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Hi, I am using cosmic tool where reset vector maps to"_stext" symbol which is defined in crtsi.s file(startup file).crtsi.s is an assembly language prog where it initialises all the ram, EEPROM and jump to "_main" routine. I want to define my own symbol other than _stext and do required initialisations. This is basically for my bootloader. I am facing a problem. If i change the symbol name from "_stext" to some other name, while downlading thru BDM i am getting following error " Can not find entry point, set PC to entry point" Rgds, Manoj |
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Problem modifying the Cosmic Startup file.
Started by ●February 2, 2004
Reply by ●February 2, 20042004-02-02
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Manoj When you load the code to your debugger, it looks for the _stext symbol from the startup code to initially set the program counter. If you remove this, the ZAP will not know where to begin the program. If you wish to add a startup symbol for your boot loader, this can be placed before the _stext call. The debugger will ignore it, and just look at the symbol it is looking for, while the boot loader will find its symbol where it needs it Regards, Luke ============================== Luke DaDalt Technical Support Engineer Cosmic Software, Inc. (781)932-2556 web: www.cosmic-software.com ============================== *NEW* Submit your support issues ONLINE http://www.cosmic-software.com/forms/support_form.htm -----Original Message----- From: chanojmarian [mailto:] Sent: Monday, February 02, 2004 12:57 AM To: Subject: [68HC12] Problem modifying the Cosmic Startup file. Hi, I am using cosmic tool where reset vector maps to"_stext" symbol which is defined in crtsi.s file(startup file).crtsi.s is an assembly language prog where it initialises all the ram, EEPROM and jump to "_main" routine. I want to define my own symbol other than _stext and do required initialisations. This is basically for my bootloader. I am facing a problem. If i change the symbol name from "_stext" to some other name, while downlading thru BDM i am getting following error " Can not find entry point, set PC to entry point" Rgds, Manoj --------------------To learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu o learn more about Motorola Microcontrollers, please visit http://www.motorola.com/mcu |
