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Hi, To place the main() routine always to the same P-Flash Address change the following in your linker.cmd file: #*************************************************************************** **** .ApplicationCode : { # Place all code into Program Flash stepper.c (.text) #do not delete this here. main() needs to be #the first function in the file stepper.c so the linker will located main() to the address #0x0086 all the time. * (.text) * (rtlib.text) * (fp_engine.text) * (user.text) } > .pFlash ************************** rgds Chris -----Ursprüngliche Nachricht----- Von: Santi Corera <> An: Christian Brauchli <>; <>; Art Johnson <> Datum: Montag, 7. Oktober 2002 09:03 Betreff: Re: [motoroladsp] DSP56807: Linker Cmd File main()- function always at the same address >About the initiliazation of registers, Which is the diference between >resetting them in a function called directly or through the COP interrupt ? > >----- Original Message ----- >From: "Art Johnson" <> >To: "Christian Brauchli" <>; ><> >Sent: Friday, October 04, 2002 7:33 PM >Subject: RE: [motoroladsp] DSP56807: Linker Cmd File main()- function always >at the same address >> 1. You can do the following in your linker.cmd file: >> >> >#************************************************************************** * >**** >> # Linker.cmd file for the DSP56F807 chip, >> # using internal data memory only ( EX = 0, Boot Mode 0A ) >> >> >#************************************************************************** * >**** >> MEMORY { >> >> # .pInterruptVector (RX) : ORIGIN = 0x0000, LENGTH = 0x0086 >> .pInterruptVector (RX) : ORIGIN = 0x0004, LENGTH = 0x0082 >> .pMain_C_Flash (RX) : ORIGIN = 0x0086, LENGTH = 0x0F7A >> .pFlash (RX) : ORIGIN = 0x1000, LENGTH = 0xE000 >> .pIntRAM (RWX) : ORIGIN = 0xF000, LENGTH = 0x0800 >> .pIntRAM_Mirror (RWX) : ORIGIN = 0xF000, LENGTH = 0x0800 >> .pBootFlash (RX) : ORIGIN = 0xF800, LENGTH = 0x0800 >> >> .xAvailable (RW) : ORIGIN = 0x0000, LENGTH = 0x0020 >> .xOSRegisters (RW) : ORIGIN = 0x0020, LENGTH = 0x0010 >> .xCWRegisters (RW) : ORIGIN = 0x0030, LENGTH = 0x0010 >> .xIntRAM (RW) : ORIGIN = 0x0040, LENGTH = 0x0FC0 >> .xIntRAM_Mirror (RWX) : ORIGIN = 0x0040, LENGTH = 0x0FC0 >> .xStack (RW) : ORIGIN = 0x0F00, LENGTH = 0x0100 >> .xPeripherals (RW) : ORIGIN = 0x1000, LENGTH = 0x0800 >> .xReserved (R) : ORIGIN = 0x1800, LENGTH = 0x0800 >> .xFlash (R) : ORIGIN = 0x2000, LENGTH = 0x2000 >> .xExtRAM (RW) : ORIGIN = 0x4000, LENGTH = 0xBF80 >> .xExtRAM_Mirror (RWX) : ORIGIN = 0x4000, LENGTH = 0xBF80 >> .xCoreRegisters (RW) : ORIGIN = 0xFF80, LENGTH = 0x0080 >> } >> >#************************************************************************** * >**** >> >> >> >> In your SECTIONS section, add the following just after the >".ApplicationInterruptVector" block: >> >> >#************************************************************************** * >**** >> .Main_C_Code : >> { >> # Place main.c code into Main_C_Flash >> main.c (.text) >> >> } > .pMain_C_Flash >> >#************************************************************************** * >**** >> >> Your main() function must, of course, be the first code in the main.c >file, so it will be placed at the address you want. This method is more >direct than the other method, which would be to put main.c as the first file >in the Link Order settings. >> >> >> >> 2. You could enable the COP (Watchdog) timer, and let it time out. You >will need to have its Interrupt Vector (number 1, address X:$0002) point to >your function that handles the interrupt when it occurs. This should put >all of the on-chip peripherals in their reset state. It does not, of >course, change the value of the ALU or AGU registers (X0, Y0, Y1, etc.). >> >> >> I hope this helps. >> >> >> Regards, >> >> Art Johnson >> Senior Systems Analyst >> PMC Prime Mover Controls Inc. >> 3600 Gilmore Way >> Burnaby, B.C., Canada >> V5G 4R8 >> Phone: 604 433-4644 >> FAX: 604 433-5570 >> Email: >> http://www.pmc-controls.com >> >> >> >> >> -----Original Message----- >> From: Christian Brauchli [mailto:] >> Sent: Friday, October 04, 2002 9:20 AM >> To: >> Subject: [motoroladsp] DSP56807: Linker Cmd File main()- function always >> at the same address >> >> >> Hi, >> >> 1. For my application I need to have the main() routine allways linked to >the same address in my P-Flash (for example 0x0086). Does anybody have an >idea how to define this in the linker.cmd file. >> >> 2. Is there an easy way to reset all the DSP- Registers to the reset state >without putting the DSP into Reset Condition? >> >> >> Thanks >> Chris >> >> >> >> >> _____________________________________ >> /groups.php3 >> >> >> >> >> >> >> >> >> >> _____________________________________ >> /groups.php3 >> >> >> >> >> >

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Hi, 1. For my application I need to have the main() routine allways linked to the same address in my P-Flash (for example 0x0086). Does anybody have an idea how to define this in the linker.cmd file. 2. Is there an easy way to reset all the DSP- Registers to the reset state without putting the DSP into Reset Condition? Thanks Chris

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1. You can do the following in your linker.cmd file: #******************************************************************************* # Linker.cmd file for the DSP56F807 chip, # using internal data memory only ( EX = 0, Boot Mode 0A ) #******************************************************************************* MEMORY { # .pInterruptVector (RX) : ORIGIN = 0x0000, LENGTH = 0x0086 .pInterruptVector (RX) : ORIGIN = 0x0004, LENGTH = 0x0082 .pMain_C_Flash (RX) : ORIGIN = 0x0086, LENGTH = 0x0F7A .pFlash (RX) : ORIGIN = 0x1000, LENGTH = 0xE000 .pIntRAM (RWX) : ORIGIN = 0xF000, LENGTH = 0x0800 .pIntRAM_Mirror (RWX) : ORIGIN = 0xF000, LENGTH = 0x0800 .pBootFlash (RX) : ORIGIN = 0xF800, LENGTH = 0x0800 .xAvailable (RW) : ORIGIN = 0x0000, LENGTH = 0x0020 .xOSRegisters (RW) : ORIGIN = 0x0020, LENGTH = 0x0010 .xCWRegisters (RW) : ORIGIN = 0x0030, LENGTH = 0x0010 .xIntRAM (RW) : ORIGIN = 0x0040, LENGTH = 0x0FC0 .xIntRAM_Mirror (RWX) : ORIGIN = 0x0040, LENGTH = 0x0FC0 .xStack (RW) : ORIGIN = 0x0F00, LENGTH = 0x0100 .xPeripherals (RW) : ORIGIN = 0x1000, LENGTH = 0x0800 .xReserved (R) : ORIGIN = 0x1800, LENGTH = 0x0800 .xFlash (R) : ORIGIN = 0x2000, LENGTH = 0x2000 .xExtRAM (RW) : ORIGIN = 0x4000, LENGTH = 0xBF80 .xExtRAM_Mirror (RWX) : ORIGIN = 0x4000, LENGTH = 0xBF80 .xCoreRegisters (RW) : ORIGIN = 0xFF80, LENGTH = 0x0080 } #******************************************************************************* In your SECTIONS section, add the following just after the ".ApplicationInterruptVector" block: #******************************************************************************* .Main_C_Code : { # Place main.c code into Main_C_Flash main.c (.text) } > .pMain_C_Flash #******************************************************************************* Your main() function must, of course, be the first code in the main.c file, so it will be placed at the address you want. This method is more direct than the other method, which would be to put main.c as the first file in the Link Order settings. 2. You could enable the COP (Watchdog) timer, and let it time out. You will need to have its Interrupt Vector (number 1, address X:$0002) point to your function that handles the interrupt when it occurs. This should put all of the on-chip peripherals in their reset state. It does not, of course, change the value of the ALU or AGU registers (X0, Y0, Y1, etc.). I hope this helps. Regards, Art Johnson Senior Systems Analyst PMC Prime Mover Controls Inc. 3600 Gilmore Way Burnaby, B.C., Canada V5G 4R8 Phone: 604 433-4644 FAX: 604 433-5570 Email: http://www.pmc-controls.com -----Original Message----- From: Christian Brauchli [mailto:] Sent: Friday, October 04, 2002 9:20 AM To: Subject: [motoroladsp] DSP56807: Linker Cmd File main()- function always at the same address Hi, 1. For my application I need to have the main() routine allways linked to the same address in my P-Flash (for example 0x0086). Does anybody have an idea how to define this in the linker.cmd file. 2. Is there an easy way to reset all the DSP- Registers to the reset state without putting the DSP into Reset Condition? Thanks Chris _____________________________________ /groups.php3

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About the initiliazation of registers, Which is the diference between resetting them in a function called directly or through the COP interrupt ? ----- Original Message ----- From: "Art Johnson" <> To: "Christian Brauchli" <>; <> Sent: Friday, October 04, 2002 7:33 PM Subject: RE: [motoroladsp] DSP56807: Linker Cmd File main()- function always at the same address > 1. You can do the following in your linker.cmd file: #*************************************************************************** **** > # Linker.cmd file for the DSP56F807 chip, > # using internal data memory only ( EX = 0, Boot Mode 0A ) #*************************************************************************** **** > MEMORY { > > # .pInterruptVector (RX) : ORIGIN = 0x0000, LENGTH = 0x0086 > .pInterruptVector (RX) : ORIGIN = 0x0004, LENGTH = 0x0082 > .pMain_C_Flash (RX) : ORIGIN = 0x0086, LENGTH = 0x0F7A > .pFlash (RX) : ORIGIN = 0x1000, LENGTH = 0xE000 > .pIntRAM (RWX) : ORIGIN = 0xF000, LENGTH = 0x0800 > .pIntRAM_Mirror (RWX) : ORIGIN = 0xF000, LENGTH = 0x0800 > .pBootFlash (RX) : ORIGIN = 0xF800, LENGTH = 0x0800 > > .xAvailable (RW) : ORIGIN = 0x0000, LENGTH = 0x0020 > .xOSRegisters (RW) : ORIGIN = 0x0020, LENGTH = 0x0010 > .xCWRegisters (RW) : ORIGIN = 0x0030, LENGTH = 0x0010 > .xIntRAM (RW) : ORIGIN = 0x0040, LENGTH = 0x0FC0 > .xIntRAM_Mirror (RWX) : ORIGIN = 0x0040, LENGTH = 0x0FC0 > .xStack (RW) : ORIGIN = 0x0F00, LENGTH = 0x0100 > .xPeripherals (RW) : ORIGIN = 0x1000, LENGTH = 0x0800 > .xReserved (R) : ORIGIN = 0x1800, LENGTH = 0x0800 > .xFlash (R) : ORIGIN = 0x2000, LENGTH = 0x2000 > .xExtRAM (RW) : ORIGIN = 0x4000, LENGTH = 0xBF80 > .xExtRAM_Mirror (RWX) : ORIGIN = 0x4000, LENGTH = 0xBF80 > .xCoreRegisters (RW) : ORIGIN = 0xFF80, LENGTH = 0x0080 > } > #*************************************************************************** **** > > In your SECTIONS section, add the following just after the ".ApplicationInterruptVector" block: #*************************************************************************** **** > .Main_C_Code : > { > # Place main.c code into Main_C_Flash > main.c (.text) > > } > .pMain_C_Flash > #*************************************************************************** **** > > Your main() function must, of course, be the first code in the main.c file, so it will be placed at the address you want. This method is more direct than the other method, which would be to put main.c as the first file in the Link Order settings. > > 2. You could enable the COP (Watchdog) timer, and let it time out. You will need to have its Interrupt Vector (number 1, address X:$0002) point to your function that handles the interrupt when it occurs. This should put all of the on-chip peripherals in their reset state. It does not, of course, change the value of the ALU or AGU registers (X0, Y0, Y1, etc.). > I hope this helps. > Regards, > > Art Johnson > Senior Systems Analyst > PMC Prime Mover Controls Inc. > 3600 Gilmore Way > Burnaby, B.C., Canada > V5G 4R8 > Phone: 604 433-4644 > FAX: 604 433-5570 > Email: > http://www.pmc-controls.com > > > -----Original Message----- > From: Christian Brauchli [mailto:] > Sent: Friday, October 04, 2002 9:20 AM > To: > Subject: [motoroladsp] DSP56807: Linker Cmd File main()- function always > at the same address > Hi, > > 1. For my application I need to have the main() routine allways linked to the same address in my P-Flash (for example 0x0086). Does anybody have an idea how to define this in the linker.cmd file. > > 2. Is there an easy way to reset all the DSP- Registers to the reset state without putting the DSP into Reset Condition? > Thanks > Chris > > > _____________________________________ > /groups.php3 > > _____________________________________ > /groups.php3

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There is no difference, between resetting the registers in a function called directly or through the COP interrupt. Technically, the ALU and AGU registers do not have a "reset" state, other than what you decide to put into them in your code. The Program Controller and the on-chip peripherals are the only parts of the DSP56800 chips that truly have a "reset" state. Regards, Art Johnson Senior Systems Analyst PMC Prime Mover Controls Inc. 3600 Gilmore Way Burnaby, B.C., Canada V5G 4R8 Phone: 604 433-4644 FAX: 604 433-5570 Email: http://www.pmc-controls.com -----Original Message----- From: Santi Corera [mailto:] Sent: Monday, October 07, 2002 1:01 AM To: Christian Brauchli; ; Art Johnson Subject: Re: [motoroladsp] DSP56807: Linker Cmd File main()- function always at the same address About the initiliazation of registers, Which is the diference between resetting them in a function called directly or through the COP interrupt ? ----- Original Message ----- From: "Art Johnson" <> To: "Christian Brauchli" <>; <> Sent: Friday, October 04, 2002 7:33 PM Subject: RE: [motoroladsp] DSP56807: Linker Cmd File main()- function always at the same address > 1. You can do the following in your linker.cmd file: #*************************************************************************** **** > # Linker.cmd file for the DSP56F807 chip, > # using internal data memory only ( EX = 0, Boot Mode 0A ) #*************************************************************************** **** > MEMORY { > > # .pInterruptVector (RX) : ORIGIN = 0x0000, LENGTH = 0x0086 > .pInterruptVector (RX) : ORIGIN = 0x0004, LENGTH = 0x0082 > .pMain_C_Flash (RX) : ORIGIN = 0x0086, LENGTH = 0x0F7A > .pFlash (RX) : ORIGIN = 0x1000, LENGTH = 0xE000 > .pIntRAM (RWX) : ORIGIN = 0xF000, LENGTH = 0x0800 > .pIntRAM_Mirror (RWX) : ORIGIN = 0xF000, LENGTH = 0x0800 > .pBootFlash (RX) : ORIGIN = 0xF800, LENGTH = 0x0800 > > .xAvailable (RW) : ORIGIN = 0x0000, LENGTH = 0x0020 > .xOSRegisters (RW) : ORIGIN = 0x0020, LENGTH = 0x0010 > .xCWRegisters (RW) : ORIGIN = 0x0030, LENGTH = 0x0010 > .xIntRAM (RW) : ORIGIN = 0x0040, LENGTH = 0x0FC0 > .xIntRAM_Mirror (RWX) : ORIGIN = 0x0040, LENGTH = 0x0FC0 > .xStack (RW) : ORIGIN = 0x0F00, LENGTH = 0x0100 > .xPeripherals (RW) : ORIGIN = 0x1000, LENGTH = 0x0800 > .xReserved (R) : ORIGIN = 0x1800, LENGTH = 0x0800 > .xFlash (R) : ORIGIN = 0x2000, LENGTH = 0x2000 > .xExtRAM (RW) : ORIGIN = 0x4000, LENGTH = 0xBF80 > .xExtRAM_Mirror (RWX) : ORIGIN = 0x4000, LENGTH = 0xBF80 > .xCoreRegisters (RW) : ORIGIN = 0xFF80, LENGTH = 0x0080 > } > #*************************************************************************** **** > > In your SECTIONS section, add the following just after the ".ApplicationInterruptVector" block: #*************************************************************************** **** > .Main_C_Code : > { > # Place main.c code into Main_C_Flash > main.c (.text) > > } > .pMain_C_Flash > #*************************************************************************** **** > > Your main() function must, of course, be the first code in the main.c file, so it will be placed at the address you want. This method is more direct than the other method, which would be to put main.c as the first file in the Link Order settings. > > 2. You could enable the COP (Watchdog) timer, and let it time out. You will need to have its Interrupt Vector (number 1, address X:$0002) point to your function that handles the interrupt when it occurs. This should put all of the on-chip peripherals in their reset state. It does not, of course, change the value of the ALU or AGU registers (X0, Y0, Y1, etc.). > I hope this helps. > Regards, > > Art Johnson > Senior Systems Analyst > PMC Prime Mover Controls Inc. > 3600 Gilmore Way > Burnaby, B.C., Canada > V5G 4R8 > Phone: 604 433-4644 > FAX: 604 433-5570 > Email: > http://www.pmc-controls.com > > > -----Original Message----- > From: Christian Brauchli [mailto:] > Sent: Friday, October 04, 2002 9:20 AM > To: > Subject: [motoroladsp] DSP56807: Linker Cmd File main()- function always > at the same address > Hi, > > 1. For my application I need to have the main() routine allways linked to the same address in my P-Flash (for example 0x0086). Does anybody have an idea how to define this in the linker.cmd file. > > 2. Is there an easy way to reset all the DSP- Registers to the reset state without putting the DSP into Reset Condition? > Thanks > Chris > > > _____________________________________ > /groups.php3 > > _____________________________________ > /groups.php3

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