can not implement custom pre_init.c using _system_pre_init()

Anthony Moeder

Other Parts Discussed in Thread: MSP430G2553, CC1101

I've read all through these forums about the issue that I'm having. The watchdog timer is expiring and resetting the micro before my main loop is ever reached. I've attempted to disable the watchdog within the function _system_pre_init() but not having much luck.

When I try to include pre_init.c in my project, I get a compiler error:

Description Resource Path Location Type
#10056 symbol "_system_pre_init" redefined: first defined in "./pre_init.obj"; redefined in "C:\TI\grace_2_10_02_85\packages\ti\targets\msp430\rts430\lib\ti.targets.msp430.rts430.ae430<pre_init.oe430>" Keyfob_AGVTC C/C++ Problem

I get the same error when I try defining the function in another c file. I've not been able to successfully compile with _system_pre_init() defined as my own.

suggestions?

by the way I'm using CCS 5.3 with a msp430g2553 microprocessor

over 12 years ago

0 Jens-Michael Gross over 12 years ago

Guru 227245 points

Apparently, GRACE is already putting its own version into your project. So it is there three times: yours, the one form GRACE and the one in the runtime library. The linker will automatically exclude the one from the runtime lib, if there is any other version in one of the object files, but there is still one too much.

Check grace whether it provides a hook (a callback function that can be used to call your code). Maybe the GRACE config has a field where you can enter a function name.

0 Leo Bosch over 12 years ago in reply to Jens-Michael Gross

Guru 23000 points

There is an option in CCS to hold the watchdog during cinit: MSP430 Linker\Basic Options. Maybe this will help.

0 Anthony Moeder over 12 years ago in reply to Leo Bosch

Prodigy 145 points

i didn't see the option to hold the watchdog in here. However, there is a field to "Specify output file name (--output_file, -o)"

This box had already had the text "pre_init.o". I tried replacing this with my .c file path. It does build when I do this, however my pre_init.c is then overwritten with what I'm assuming is machine code.

So then I tried replacing with the file pre_init.obj from my project debug folder. When I do that, pre_init.obj no longer will build, therefore doesn't exist.

0 Anthony Moeder over 12 years ago in reply to Jens-Michael Gross

Prodigy 145 points

There is no such option in the Grace configuration for the watchdog.

The ONLY bit set in the WDTCTL is bit7 (WDT HOLD). I also do not have any interrupts enabled for the watchdog

0 Katie Pier over 12 years ago in reply to Anthony Moeder

TI__Guru* 82701 points

Hi Anthony,

I've brought this issue to the attention of the Grace development team. Unfortunately at the moment there isn't a super easy workaround for you, but because you've notified us of this issue they are going to look into possible changes that they can make to make it where dropping in a file with _system_pre_init() will work with Grace the way you would expect.

For now, they said that there's this workaround if you just need to be able to disable the watchdog:

Grace team said:
Configuration Workarounds

If you just need to disable the watchdog, you only need to add the following line to your application’s .cfg script:
var Boot = xdc.useModule("ti.catalog.msp430.init.Boot");
The Boot module disables the watchdog by default at startup. It does this by adding a function to a table of functions, managed by the Reset module, that are called just before _system_pre_init().

So this is something that you can try in the meantime. Thanks so much for posting - it will hopefully help us to make this easier in future versions.

Regards,

Katie

0 Anthony Moeder over 12 years ago in reply to Katie Pier

Prodigy 145 points

I'm assuming this is something to try in lieu of implementing _system_pre_init()

If so, then it didn't work. The debugger still never reaches my main loop.

0 Chester Gillon over 12 years ago

Guru 92251 points

Anthony Moeder said:
The watchdog timer is expiring and resetting the micro before my main loop is ever reached.

Are you sure the reason that the main loop not being reached is due to the watchdog timer expiring?

e.g. I have seen some other (obscure) reasons why main fails to be reached such as a linker command file error which causes the start-up code to trigger a watchdog password violation leading to a reset.

Given that main still isn't being reached when "var Boot = xdc.useModule("ti.catalog.msp430.init.Boot"); was added in the .cfg script suggest try and single step the run time start-up to try and determine where the failure occurs. To do this under the CCS project properties Debug -> Auto Run and Launch Options -> Auto Run Options untick the Run to Symbol "On a Program load or restart" and "On a reset" options. When start a debug session the processor will halt at the reset vector, and you can single step the start-up code.

0 Anthony Moeder over 12 years ago in reply to Chester Gillon

Prodigy 145 points

Well, I had this issue months ago and the only way I was able to get around it was moving some of my variables into flash ram which decreased the ram allocation. After I did that, I could hit breakpoints in my main loop.

Since then I've added functionality and pretty well filled up the ram, so it's back.

Just single stepped through the entry code and was looping in _TI_zero_init() before suddenly jumping back to the entry-point.

0 Anthony Moeder over 12 years ago in reply to Anthony Moeder

Prodigy 145 points

Actually it jumps to the end of memory (0xFFFC) just before jumping back to the entry-point.

And it always occurs when _TI_zero_init() is looking at address 0x0121. I don't know if that is of any significance or not.

Here's something else I've done I didn't think of earlier. I've combined PERIPHERALS_8BIT and PERIPHERALS_16BIT with the RAM definition within the linker script. So actually PERIPHERALS_8BIT and PERIPHERALS_16BIT are undefined and RAM is redefined using the pre-defined space for those 2 definitions.

I didn't think that would be an issue, but I guess I don't know for sure. Could this be the cause?

0 Chester Gillon over 12 years ago in reply to Anthony Moeder

Guru 92251 points

Anthony Moeder said:
And it always occurs when _TI_zero_init() is looking at address 0x0121. I don't know if that is of any significance or not.

Address 0x121 is the address of the WatchDog timer, and _TI_zero_init() writing to that address will trigger a reset due to a Watchdog Password Violation.

Anthony Moeder said:
So actually PERIPHERALS_8BIT and PERIPHERALS_16BIT are undefined and RAM is redefined using the pre-defined space for those 2 definitions.

Telling the linker to use the peripheral address space for RAM will cause the reset during the run time code initialisation (even if a reset didn't occur the program wouldn't run correctly). What problem were you trying to address by modifying the linker command file in that way?

0 Anthony Moeder over 12 years ago in reply to Chester Gillon

Prodigy 145 points

ok, that all makes sense. I've redefined PERIPHERALS_8BIT and PERIPHERALS_16BIT and RAM all back to the way it was. Reason I changed originally was to try and use that additional 0x90 bytes for my objects. instead I'll just relocate some more variables into flash ram.

but still the problem persists. the micro resets when _TI_zero_init() reaches address 0x0121

0 Chester Gillon over 12 years ago in reply to Anthony Moeder

Guru 92251 points

Anthony Moeder said:
but still the problem persists. the micro resets when _TI_zero_init() reaches address 0x0121

When compiling the program due you get any warnings of the form "creating output section "<section_name>" without a SECTIONS specification"?

Also, can you post your linker command file and linker map files?

0 Anthony Moeder over 12 years ago in reply to Chester Gillon

Prodigy 145 points

I do still have several warnings, but that's not one of them. The flash ram appears to map correctly.

here is my linker.

/****************************************************************************/

/* SPECIFY THE SYSTEM MEMORY MAP */

/****************************************************************************/

MEMORY

{

SFR : origin = 0x0000, length = 0x0010

PERIPHERALS_8BIT : origin = 0x0010, length = 0x0040 //application

PERIPHERALS_16BIT : origin = 0x0050, length = 0x0050 //application

RAM : origin = 0x0100, length = 0x0300 //application

// INFOA : origin = 0x10C0, length = 0x0040

// INFOB : origin = 0x1080, length = 0x0040

// INFOC : origin = 0x1040, length = 0x0040

// INFOD : origin = 0x1000, length = 0x0040

FLASH_RAM : origin = 0x1000, length = 0x0160 //application redefines info sections as flash_ram

FLASH : origin = 0xC000, length = 0x3FE0

INT00 : origin = 0xFFE0, length = 0x0002

INT01 : origin = 0xFFE2, length = 0x0002

INT02 : origin = 0xFFE4, length = 0x0002

INT03 : origin = 0xFFE6, length = 0x0002

INT04 : origin = 0xFFE8, length = 0x0002

INT05 : origin = 0xFFEA, length = 0x0002

INT06 : origin = 0xFFEC, length = 0x0002

INT07 : origin = 0xFFEE, length = 0x0002

INT08 : origin = 0xFFF0, length = 0x0002

INT09 : origin = 0xFFF2, length = 0x0002

INT10 : origin = 0xFFF4, length = 0x0002

INT11 : origin = 0xFFF6, length = 0x0002

INT12 : origin = 0xFFF8, length = 0x0002

INT13 : origin = 0xFFFA, length = 0x0002

INT14 : origin = 0xFFFC, length = 0x0002

RESET : origin = 0xFFFE, length = 0x0002

}

/****************************************************************************/

/* SPECIFY THE SECTIONS ALLOCATION INTO MEMORY */

/****************************************************************************/

SECTIONS

{

.bss : {} > RAM /* GLOBAL & STATIC VARS */

.data : {} > RAM /* GLOBAL & STATIC VARS */

.sysmem : {} > RAM /* DYNAMIC MEMORY ALLOCATION AREA */

.stack : {} > RAM (HIGH) /* SOFTWARE SYSTEM STACK */

.text : {} > FLASH /* CODE */

.cinit : {} > FLASH /* INITIALIZATION TABLES */

.const : {} > FLASH /* CONSTANT DATA */

.cio : {} > RAM /* C I/O BUFFER */

.pinit : {} > FLASH /* C++ CONSTRUCTOR TABLES */

.init_array : {} > FLASH /* C++ CONSTRUCTOR TABLES */

.mspabi.exidx : {} > FLASH /* C++ CONSTRUCTOR TABLES */

.mspabi.extab : {} > FLASH /* C++ CONSTRUCTOR TABLES */

// .infoA : {} > /* MSP430 INFO FLASH MEMORY SEGMENTS */

// .infoB : {} >

// .infoC : {} >

// .infoD : {} >

.flashRam : {} > FLASH_RAM type=NOINIT //application redefines info sections as flash_ram

/* MSP430 INTERRUPT VECTORS */

.int00 : {} > INT00

.int01 : {} > INT01

PORT1 : { * ( .int02 ) } > INT02 type = VECT_INIT

PORT2 : { * ( .int03 ) } > INT03 type = VECT_INIT

.int04 : {} > INT04

ADC10 : { * ( .int05 ) } > INT05 type = VECT_INIT

USCIAB0TX : { * ( .int06 ) } > INT06 type = VECT_INIT

USCIAB0RX : { * ( .int07 ) } > INT07 type = VECT_INIT

TIMER0_A1 : { * ( .int08 ) } > INT08 type = VECT_INIT

TIMER0_A0 : { * ( .int09 ) } > INT09 type = VECT_INIT

.int10 : {} > INT10

COMPARATORA : { * ( .int11 ) } > INT11 type = VECT_INIT

TIMER1_A1 : { * ( .int12 ) } > INT12 type = VECT_INIT

TIMER1_A0 : { * ( .int13 ) } > INT13 type = VECT_INIT

NMI : { * ( .int14 ) } > INT14 type = VECT_INIT

.reset : {} > RESET /* MSP430 RESET VECTOR */

}

/****************************************************************************/

/* INCLUDE PERIPHERALS MEMORY MAP */

/****************************************************************************/

-l msp430g2553.cmd

And here's my map file minus the GLOBAL SYMBOLS table

******************************************************************************

MSP430 Linker PC v4.1.8

******************************************************************************

>> Linked Wed Mar 19 07:28:43 2014

OUTPUT FILE NAME: <pre_init.o>

ENTRY POINT SYMBOL: "_c_int00" address: 0000e9a2

MEMORY CONFIGURATION

name origin length used unused attr fill

---------------------- -------- --------- -------- -------- ---- --------

SFR 00000000 00000010 00000000 00000010 RWIX

PERIPHERALS_8BIT 00000010 00000040 00000000 00000040 RWIX

PERIPHERALS_16BIT 00000050 00000050 00000000 00000050 RWIX

RAM 00000100 00000300 000002d0 00000030 RWIX

FLASH_RAM 00001000 00000160 000000dc 00000084 RWIX

FLASH 0000c000 00003fe0 00002fb2 0000102e RWIX

INT00 0000ffe0 00000002 00000000 00000002 RWIX

INT01 0000ffe2 00000002 00000000 00000002 RWIX

INT02 0000ffe4 00000002 00000002 00000000 RWIX

INT03 0000ffe6 00000002 00000002 00000000 RWIX

INT04 0000ffe8 00000002 00000000 00000002 RWIX

INT05 0000ffea 00000002 00000002 00000000 RWIX

INT06 0000ffec 00000002 00000002 00000000 RWIX

INT07 0000ffee 00000002 00000002 00000000 RWIX

INT08 0000fff0 00000002 00000002 00000000 RWIX

INT09 0000fff2 00000002 00000002 00000000 RWIX

INT10 0000fff4 00000002 00000002 00000000 RWIX

INT11 0000fff6 00000002 00000002 00000000 RWIX

INT12 0000fff8 00000002 00000002 00000000 RWIX

INT13 0000fffa 00000002 00000002 00000000 RWIX

INT14 0000fffc 00000002 00000002 00000000 RWIX

RESET 0000fffe 00000002 00000002 00000000 RWIX

SECTION ALLOCATION MAP

output attributes/

section page origin length input sections

-------- ---- ---------- ---------- ----------------

xdc.meta 0 00000000 000000f0 COPY SECTION

00000000 000000f0 main_pe430.oe430 (xdc.meta)

.init_array

* 0 0000c000 00000000 UNINITIALIZED

.bss 0 00000100 00000254 UNINITIALIZED

00000100 00000118 timer.obj (.bss)

00000218 000000a2 spi.obj (.bss)

000002ba 00000030 event.obj (.bss)

000002ea 00000019 AIRPushProtocol.obj (.bss)

00000303 00000001 --HOLE--

00000304 00000016 SystemVariables.obj (.bss)

0000031a 00000014 PhysicalBridge.obj (.bss)

0000032e 00000010 led.obj (.bss)

0000033e 00000010 pushButton.obj (.bss)

0000034e 00000004 flags.obj (.bss)

00000352 00000002 keyfob.obj (.bss)

.TI.noinit

* 0 00000100 00000000 UNINITIALIZED

.data 0 00000354 0000003c

00000354 00000024 SystemVariables.obj (.data)

00000378 0000000a PhysicalBridge.obj (.data)

00000382 00000006 PhysicalBridge.obj (.data:gGdo)

00000388 00000005 AIRPushProtocol.obj (.data)

0000038d 00000001 --HOLE--

0000038e 00000002 iic.obj (.data)

.TI.persistent

* 0 00000354 00000000 UNINITIALIZED

.stack 0 000003c0 00000040 UNINITIALIZED

000003c0 00000002 ti.targets.msp430.rts430.ae430 : boot.oe430 (.stack)

000003c2 0000003e --HOLE--

.flashRam

* 0 00001000 000000dc UNINITIALIZED

00001000 00000090 io.obj (.flashRam)

00001090 00000044 iic.obj (.flashRam)

000010d4 00000008 throttleControl.obj (.flashRam)

.text 0 0000c000 00002eee

0000c000 00000354 timer.obj (.text:timerEvent_1msHandler)

0000c354 00000346 dataTypes.obj (.text:compareData)

0000c69a 000001f8 AIRPushProtocol.obj (.text:ProtocolFrameProcessing)

0000c892 00000172 io.obj (.text:readInputs)

0000ca04 00000166 pushButton.obj (.text:pushbuttonTimerEvent)

0000cb6a 00000122 event.obj (.text:newEventHandler)

0000cc8c 00000116 io.obj (.text:readPin)

0000cda2 000000fe iic.obj (.text:iicRxInterruptHandler)

0000cea0 000000fc led.obj (.text:flashLeds)

0000cf9c 000000c2 A1101R09.obj (.text:A1101R09SetPaTable)

0000d05e 000000b8 grace.lib : GPIO_init.obj (.text:GPIO_graceInit)

0000d116 000000b4 io.obj (.text:clearPin)

0000d1ca 000000ae event.obj (.text:hasEventHandle)

0000d278 000000a4 timer.obj (.text:setTimerEvent)

0000d31c 0000009e hardware.obj (.text:processHardwareFlags)

0000d3ba 0000009c CC1101.obj (.text:CC1101GetRegisterWithSpiSyncProblem)

0000d456 0000009c pushButton.obj (.text:buttonPressedEvent)

0000d4f2 0000009a io.obj (.text:setPin)

0000d58c 00000090 PhysicalBridge.obj (.text:InitializePhysicalBridge)

0000d61c 0000008c led.obj (.text:initLeds)

0000d6a8 0000008a hardware.obj (.text:initHardware)

0000d732 00000086 A1101R09.obj (.text:A1101R09SetChannr)

0000d7b8 00000076 iic.obj (.text:iicTxInterruptHandler)

0000d82e 00000074 pushButton.obj (.text:initPushbuttons)

0000d8a2 0000006e AIRPushProtocol.obj (.text:Transmit)

0000d910 0000006c io.obj (.text:initPins)

0000d97c 0000006a ti.targets.msp430.rts430.ae430 : autoinit.oe430 (.text:_auto_init)

0000d9e6 00000068 rts430_eabi.lib : fs_toi.obj (.text)

0000da4e 00000064 CC1101.obj (.text:CC1101GdoInit)

0000dab2 00000064 AIRPushProtocol.obj (.text:InitializeChannelGroup)

0000db16 00000064 PhysicalBridge.obj (.text:TransmitFrame)

0000db7a 00000062 keyfob.obj (.text:keyfobEventHandler)

0000dbdc 00000060 event.obj (.text:setEventStatus)

0000dc3c 0000005e CC1101.obj (.text:CC1101GetChip)

0000dc9a 0000005e rts430_eabi.lib : copy_decompress_rle.obj (.text:__TI_decompress_rle_core)

0000dcf8 0000005e timer.obj (.text:getTimerEvent)

0000dd56 0000005e throttleControl.obj (.text:setMotorState)

0000ddb4 0000005e spi.obj (.text:spiClearRxBuffer)

0000de12 0000005c A1101R09.obj (.text:A1101R09Init)

0000de6e 0000005a io.obj (.text:setPinDirection)

0000dec8 00000058 CC1101.obj (.text:CC1101ReadRxFifo)

0000df20 00000058 rts430_eabi.lib : div32u.obj (.text)

0000df78 00000054 AIRPushProtocol.obj (.text:FrameReceivedChGroupUpdate)

0000dfcc 00000054 grace.lib : InterruptVectors_init.obj (.text:PORT2_ISR_HOOK)

0000e020 00000050 CC1101.obj (.text:CC1101Read)

0000e070 0000004c rts430_eabi.lib : lsr16.obj (.text)

0000e0bc 0000004a : fs_cmp.obj (.text)

0000e106 0000004a : fs_ltof.obj (.text)

0000e150 0000004a spi.obj (.text:spiExchange)

0000e19a 0000004a timer.obj (.text:startCounter)

0000e1e4 00000048 CC1101.obj (.text:CC1101GetRegister)

0000e22c 00000048 PhysicalBridge.obj (.text:ReceiveOn)

0000e274 00000044 grace.lib : USCI_B0_init.obj (.text:USCI_B0_graceInit)

0000e2b8 00000044 spi.obj (.text:startSpi)

0000e2fc 00000044 timer.obj (.text:startTimer)

0000e340 00000042 CC1101.obj (.text:CC1101SetAndVerifyState)

0000e382 00000040 CC1101.obj (.text:CC1101Write)

0000e3c2 00000040 iic.obj (.text:iicAttached)

0000e402 00000040 rts430_eabi.lib : div32s.obj (.text)

0000e442 00000040 led.obj (.text:setLedState)

0000e482 0000003e AIRPushProtocol.obj (.text:FrameValidationNumber)

0000e4c0 0000003a event.obj (.text:compareHandles)

0000e4fa 00000036 A1101R09.obj (.text:A1101R09Configure)

0000e530 00000036 rts430_eabi.lib : fs_itof.obj (.text)

0000e566 00000036 : strstr.obj (.text:strstr)

0000e59c 00000034 grace.lib : BCSplus_init.obj (.text:BCSplus_graceInit)

0000e5d0 00000034 pushButton.obj (.text:isButtonHeld)

0000e604 00000034 timer.obj (.text:setTimer)

0000e638 00000032 CC1101.obj (.text:CC1101Configure)

0000e66a 00000032 io.obj (.text:getIoEvent)

0000e69c 00000032 event.obj (.text:getMaxIndex)

0000e6ce 00000032 pushButton.obj (.text:isButtonPressed)

0000e700 00000032 rts430_eabi.lib : fs_ultof.obj (.text)

0000e732 00000032 throttleControl.obj (.text:updateThrottlePosition)

0000e764 00000030 flags.obj (.text:readHardwareFlag)

0000e794 00000030 timer.obj (.text:resetCounter)

0000e7c4 00000030 io.obj (.text:setInverted)

0000e7f4 0000002e PhysicalBridge.obj (.text:DebugCatch)

0000e822 0000002e PhysicalBridge.obj (.text:SoftwareTickWait)

0000e850 0000002e io.obj (.text:processIO)

0000e87e 0000002c iic.obj (.text:iicTxFlush)

0000e8aa 0000002c rts430_eabi.lib : lsl16.obj (.text)

0000e8d6 0000002a PhysicalBridge.obj (.text:CatastrophicError)

0000e900 0000002a main.obj (.text:start)

0000e92a 00000028 CC1101.obj (.text:CC1101SpiInit)

0000e952 00000028 grace.lib : Grace_init.obj (.text:Grace_init)

0000e97a 00000028 iic.obj (.text:iicInit)

0000e9a2 00000026 ti.targets.msp430.rts430.ae430 : boot.oe430 (.text:_c_int00_noexit)

0000e9c8 00000024 PhysicalBridge.obj (.text:Gdo0Enable)

0000e9ec 00000024 flags.obj (.text:clearHardwareFlag)

0000ea10 00000024 iic.obj (.text:iicBusy)

0000ea34 00000024 rts430_eabi.lib : fs_utof.obj (.text)

0000ea58 00000022 A1101R09.obj (.text:A1101R09GetLookup)

0000ea7a 00000022 CC1101.obj (.text:CC1101WriteTxFifo)

0000ea9c 00000022 grace.lib : InterruptVectors_init.obj (.text:TIMER0_A0_ISR_HOOK)

0000eabe 00000022 iic.obj (.text:iicClearRxBuffer)

0000eae0 00000022 flags.obj (.text:setHardwareFlag)

0000eb02 00000020 instrumentFeatures.obj (.text:initInstrumentFeatures)

0000eb22 0000001e CC1101.obj (.text:CC1101SetRegister)

0000eb40 0000001e CC1101.obj (.text:CC1101Strobe)

0000eb5e 0000001e grace.lib : InterruptVectors_init.obj (.text:USCI0RX_ISR_HOOK)

0000eb7c 0000001e : InterruptVectors_init.obj (.text:USCI0TX_ISR_HOOK)

0000eb9a 0000001e spi.obj (.text:spiWrite)

0000ebb8 0000001c CC1101.obj (.text:CC1101TimeoutEvent)

0000ebd4 0000001c led.obj (.text:blinkError)

0000ebf0 0000001c timer.obj (.text:getCount)

0000ec0c 0000001c timer.obj (.text:setCounterEventInterval)

0000ec28 0000001c spi.obj (.text:spiRead)

0000ec44 0000001a CC1101.obj (.text:CC1101WriteRegisters)

0000ec5e 0000001a PhysicalBridge.obj (.text:Gdo0Assert)

0000ec78 0000001a PhysicalBridge.obj (.text:Gdo0Deassert)

0000ec92 0000001a PhysicalBridge.obj (.text:Gdo0Init)

0000ecac 0000001a PhysicalBridge.obj (.text:GetReceivedFrame)

0000ecc6 0000001a grace.lib : InterruptVectors_init.obj (.text:PORT1_ISR_HOOK)

0000ece0 0000001a : USCI_A0_init.obj (.text:USCI_A0_graceInit)

0000ecfa 0000001a wireless.obj (.text:initWireless)

0000ed14 0000001a io.obj (.text:isInverted)

0000ed2e 0000001a spi.obj (.text:spiBusy)

0000ed48 0000001a spi.obj (.text:spiInit)

0000ed62 00000018 PhysicalBridge.obj (.text:Gdo0Event)

0000ed7a 00000018 rts430_eabi.lib : strcmp.obj (.text:strcmp)

0000ed92 00000016 : div16u.obj (.text)

0000eda8 00000014 grace.lib : Timer0_A3_init.obj (.text:Timer0_A3_graceInit)

0000edbc 00000014 rts430_eabi.lib : copy_zero_init.obj (.text:decompress:ZI:__TI_zero_init)

0000edd0 00000014 timer.obj (.text:getTimerState)

0000ede4 00000014 rts430_eabi.lib : memset.obj (.text:memset)

0000edf8 00000014 : mult16.obj (.text)

0000ee0c 00000012 AIRPushProtocol.obj (.text:GetCurrentChannel)

0000ee1e 00000012 PhysicalBridge.obj (.text:MilliSecondsToTimerTics)

0000ee30 00000012 rts430_eabi.lib : copy_decompress_none.obj (.text:decompress:none:__TI_decompress_none)

0000ee42 00000012 : memcpy.obj (.text:memcpy)

0000ee54 00000010 PhysicalBridge.obj (.text:Gdo0State)

0000ee64 00000010 grace.lib : System_init.obj (.text:System_graceInit)

0000ee74 00000010 rts430_eabi.lib : epilog.obj (.text)

0000ee84 0000000e PhysicalBridge.obj (.text:LinkReporting)

0000ee92 0000000a AIRPushProtocol.obj (.text:ProtocolInitialization)

0000ee9c 00000008 grace.lib : WDTplus_init.obj (.text:WDTplus_graceInit)

0000eea4 00000008 instrumentFeatures.obj (.text:goToSleep)

0000eeac 00000008 throttleControl.obj (.text:initThrottleController)

0000eeb4 00000006 A1101R09.obj (.text:A1101R09GetPowerLookupSize)

0000eeba 00000006 errorHandling.obj (.text:ISR_trap)

0000eec0 00000006 rts430_eabi.lib : copy_decompress_rle.obj (.text:decompress:rle24:__TI_decompress_rle24)

0000eec6 00000006 throttleControl.obj (.text:getMotorState)

0000eecc 00000006 main_pe430.oe430 (.text:main)

0000eed2 00000006 wireless.obj (.text:wirelessExchange)

0000eed8 00000004 ti.targets.msp430.rts430.ae430 : pre_init.oe430 (.text:_system_pre_init)

0000eedc 00000004 rts430_eabi.lib : exit.obj (.text:abort)

0000eee0 00000004 wireless.obj (.text:wirelessClearRxBuffer)

0000eee4 00000002 grace.lib : InterruptVectors_init.obj (.text:InterruptVectors_graceInit)

0000eee6 00000002 iic.obj (.text:iicStop)

0000eee8 00000002 relay.obj (.text:initRelays)

0000eeea 00000002 keyfob.obj (.text:transmitterPairingEventHandler)

0000eeec 00000002 io.obj (.text:updateOutputs)

.const 0 0000eeee 0000009a

0000eeee 0000003e A1101R09.obj (.const:gA1101R09Lookup)

0000ef2c 0000001a AIRPushProtocol.obj (.const:.string)

0000ef46 00000014 A1101R09.obj (.const:gA1101R09PowerLookup)

0000ef5a 00000013 AIRPushProtocol.obj (.const:.string:FrameValidationTable)

0000ef6d 00000001 --HOLE-- [fill = 0]

0000ef6e 0000000c PhysicalBridge.obj (.const)

0000ef7a 00000008 PhysicalBridge.obj (.const:.string:PATABLE_List)

0000ef82 00000003 AIRPushProtocol.obj (.const:.string:DefaultChannelList)

0000ef85 00000001 --HOLE-- [fill = 0]

0000ef86 00000002 CC1101.obj (.const:.string:$P$T0$1)

.cinit 0 0000ef88 0000002a

0000ef88 00000018 (.cinit..data.load) [load image, compression = rle]

0000efa0 00000006 (__TI_handler_table)

0000efa6 00000004 (.cinit..bss.load) [load image, compression = zero_init]

0000efaa 00000008 (__TI_cinit_table)

PORT1 0 0000ffe4 00000002

0000ffe4 00000002 grace.lib : InterruptVectors_init.obj (.int02)

PORT2 0 0000ffe6 00000002

0000ffe6 00000002 grace.lib : InterruptVectors_init.obj (.int03)

ADC10 0 0000ffea 00000002

0000ffea 00000002 errorHandling.obj (.int05)

USCIAB0TX

* 0 0000ffec 00000002

0000ffec 00000002 grace.lib : InterruptVectors_init.obj (.int06)

USCIAB0RX

* 0 0000ffee 00000002

0000ffee 00000002 grace.lib : InterruptVectors_init.obj (.int07)

TIMER0_A1

* 0 0000fff0 00000002

0000fff0 00000002 errorHandling.obj (.int08)

TIMER0_A0

* 0 0000fff2 00000002

0000fff2 00000002 grace.lib : InterruptVectors_init.obj (.int09)

.int10 0 0000fff4 00000002

0000fff4 00000002 errorHandling.obj (.int10)

COMPARATORA

* 0 0000fff6 00000002

0000fff6 00000002 errorHandling.obj (.int11)

TIMER1_A1

* 0 0000fff8 00000002

0000fff8 00000002 errorHandling.obj (.int12)

TIMER1_A0

* 0 0000fffa 00000002

0000fffa 00000002 errorHandling.obj (.int13)

NMI 0 0000fffc 00000002

0000fffc 00000002 errorHandling.obj (.int14)

.reset 0 0000fffe 00000002

0000fffe 00000002 ti.targets.msp430.rts430.ae430 : boot.oe430 (.reset)

LINKER GENERATED COPY TABLES

__TI_cinit_table @ 0000efaa records: 2, size/record: 4, table size: 8

.data: load addr=0000ef88, load size=00000018 bytes, run addr=00000354, run size=0000003c bytes, compression=rle

.bss: load addr=0000efa6, load size=00000004 bytes, run addr=00000100, run size=00000254 bytes, compression=zero_init

LINKER GENERATED HANDLER TABLE

__TI_handler_table @ 0000efa0 records: 3, size/record: 2, table size: 6

index: 0, handler: __TI_zero_init

index: 1, handler: __TI_decompress_rle24

index: 2, handler: __TI_decompress_none

0 Anthony Moeder over 12 years ago in reply to Anthony Moeder

Prodigy 145 points

By the way, (and this is why I originally removed the definitions) I noticed that the PERIPHERALS_8BIT and PERIPHERALS_16BIT sections are both unused according to the map output file.

Why then is it a problem to redefine them as a single larger block of RAM?

0 Chester Gillon over 12 years ago in reply to Anthony Moeder

Guru 92251 points

Anthony Moeder said:
Why then is it a problem to redefine them as a single larger block of RAM?

The peripheral address space can't be redefined as RAM since:

a) Not all the bits read back the last value written

b) Writing to some peripheral addresses, such as the watchdog timer key, can trigger a reset as has been observed when _TI_zero_init writes to address 0x0121.

0 Anthony Moeder over 12 years ago in reply to Chester Gillon

Prodigy 145 points

Alright, thanks for the info.

0 Brian Boorman over 12 years ago in reply to Anthony Moeder

Guru 25210 points

Anthony Moeder said:
Why then is it a problem to redefine them as a single larger block of RAM?

Because those addresses are not RAM. They are the control/status/data registers for the peripherals in the device.

0 Anthony Moeder over 12 years ago in reply to Brian Boorman

Prodigy 145 points

Got it. I've already reverted back to the way peripherals were originally defined.

But I still have the issue with the watchdog resetting the micro before reaching my main loop.

Even adding this line to the config script like Katie suggested didn't help.

var Boot = xdc.useModule("ti.catalog.msp430.init.Boot");

0 Jens-Michael Gross over 12 years ago in reply to Anthony Moeder

Guru 227245 points

Perhaps you should post your code (or at least the part that is executed before main, the global definitions and the ISRs).
Maybe there’s something that makes your code trigger a reset (are you sure it is the watchdog?) before main.

0 Anthony Moeder over 12 years ago in reply to Jens-Michael Gross

Prodigy 145 points

I got it. Didn't actually have the perifs restored correctly like I though. Thanks everyone for your helpful advice.

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can not implement custom pre_init.c using _system_pre_init()