Other Parts Discussed in Thread: MSP430F5529,
I am trying to create a custom boot loader (not using the BSL or MSPFRBOOT) to be able to update the main application whilst receiving data. On start up and on reset the processor should enter the boot loader to check to see if any updates are required.
The update will be sent over I2C from an MSP430F5529 (Master) to the MSP430FR2033 (Slave) whilst the MSP430FR2033 is in the boot loader application. The boot loader is not using the BSL, it is it's own application in main memory.
- I have read that because the MSP430FR2033 is using FRAM and does not have a minimum erase size (and is treated like ram), it does not need proxy vector table, but in the MSP430FRBOOT code examples they do have proxy vector tables. Why does it not require a proxy vector table if the linkers contain the same addresses for the hardware interrupts? Does each application reconfigure the HW Vector Table in the int00 interrupt at boot? Or do I need a proxy vector table?.
- Our design is to have the HW Reset Vector always jump to the boot interrupt of the boot loader. This is so the boot loader can check if the main application needs to update on start up, and if not, jump to the main application. We jump to main by having a jump instruction to the int00 routine of the main. We jump to the boot loader from the main application by doing a brownout reset. The brownout reset works, however it doesn't seem to jump to the boot loader and we are not sure why.
- What flash options should we be using for each application? Currently we flash in the boot loader using a full erase and program. Then we flash in the application by doing a differential download on the main application. We immediately lose debug control when we do this because the reset vector goes into the boot loader. Is this the correct way to flash these two applications onto the same processor?
This is the boot loader linker:
MEMORY { SFR : origin = 0x0000, length = 0x0010 PERIPHERALS_8BIT : origin = 0x0010, length = 0x00F0 PERIPHERALS_16BIT : origin = 0x0100, length = 0x0100 RESET_VECTOR : origin = 0x1900, length = 0x0100 RAM : origin = 0x2000, length = 0x0800 FRAM : origin = 0xF400, length = 0x0B80 JTAGSIGNATURE : origin = 0xFF80, length = 0x0004, fill = 0xFFFF BSLSIGNATURE : origin = 0xFF84, length = 0x0004, fill = 0xFFFF INT00 : origin = 0xFF88, length = 0x0002 INT01 : origin = 0xFF8A, length = 0x0002 INT02 : origin = 0xFF8C, length = 0x0002 INT03 : origin = 0xFF8E, length = 0x0002 INT04 : origin = 0xFF90, length = 0x0002 INT05 : origin = 0xFF92, length = 0x0002 INT06 : origin = 0xFF94, length = 0x0002 INT07 : origin = 0xFF96, length = 0x0002 INT08 : origin = 0xFF98, length = 0x0002 INT09 : origin = 0xFF9A, length = 0x0002 INT10 : origin = 0xFF9C, length = 0x0002 INT11 : origin = 0xFF9E, length = 0x0002 INT12 : origin = 0xFFA0, length = 0x0002 INT13 : origin = 0xFFA2, length = 0x0002 INT14 : origin = 0xFFA4, length = 0x0002 INT15 : origin = 0xFFA6, length = 0x0002 INT16 : origin = 0xFFA8, length = 0x0002 INT17 : origin = 0xFFAA, length = 0x0002 INT18 : origin = 0xFFAC, length = 0x0002 INT19 : origin = 0xFFAE, length = 0x0002 INT20 : origin = 0xFFB0, length = 0x0002 INT21 : origin = 0xFFB2, length = 0x0002 INT22 : origin = 0xFFB4, length = 0x0002 INT23 : origin = 0xFFB6, length = 0x0002 INT24 : origin = 0xFFB8, length = 0x0002 INT25 : origin = 0xFFBA, length = 0x0002 INT26 : origin = 0xFFBC, length = 0x0002 INT27 : origin = 0xFFBE, length = 0x0002 INT28 : origin = 0xFFC0, length = 0x0002 INT29 : origin = 0xFFC2, length = 0x0002 INT30 : origin = 0xFFC4, length = 0x0002 INT31 : origin = 0xFFC6, length = 0x0002 INT32 : origin = 0xFFC8, length = 0x0002 INT33 : origin = 0xFFCA, length = 0x0002 INT34 : origin = 0xFFCC, length = 0x0002 INT35 : origin = 0xFFCE, length = 0x0002 INT36 : origin = 0xFFD0, length = 0x0002 INT37 : origin = 0xFFD2, length = 0x0002 INT38 : origin = 0xFFD4, length = 0x0002 INT39 : origin = 0xFFD6, length = 0x0002 INT40 : origin = 0xFFD8, length = 0x0002 INT41 : origin = 0xFFDA, length = 0x0002 INT42 : origin = 0xFFDC, length = 0x0002 INT43 : origin = 0xFFDE, length = 0x0002 INT44 : origin = 0xFFE0, length = 0x0002 INT45 : origin = 0xFFE2, length = 0x0002 INT46 : origin = 0xFFE4, length = 0x0002 INT47 : origin = 0xFFE6, length = 0x0002 INT48 : origin = 0xFFE8, length = 0x0002 INT49 : origin = 0xFFEA, length = 0x0002 INT50 : origin = 0xFFEC, length = 0x0002 INT51 : origin = 0xFFEE, length = 0x0002 INT52 : origin = 0xFFF0, length = 0x0002 INT53 : origin = 0xFFF2, length = 0x0002 INT54 : origin = 0xFFF4, length = 0x0002 INT55 : origin = 0xFFF6, length = 0x0002 INT56 : origin = 0xFFF8, length = 0x0002 INT57 : origin = 0xFFFA, length = 0x0002 INT58 : origin = 0xFFFC, length = 0x0002 RESET : origin = 0xFFFE, length = 0x0002 } /****************************************************************************/ /* Specify the sections allocation into memory */ /****************************************************************************/ SECTIONS { GROUP(ALL_FRAM) { GROUP(READ_WRITE_MEMORY) { .TI.persistent : {} /* For #pragma persistent */ } GROUP(READ_ONLY_MEMORY) { .cinit : {} /* Initialization tables */ .pinit : {} /* C++ constructor tables */ .binit : {} /* Boot-time Initialization tables */ .init_array : {} /* C++ constructor tables */ .mspabi.exidx : {} /* C++ constructor tables */ .mspabi.extab : {} /* C++ constructor tables */ .const : {} /* Constant data */ } GROUP(EXECUTABLE_MEMORY) { .text : {} /* Code */ } } > FRAM #ifdef __TI_COMPILER_VERSION__ #if __TI_COMPILER_VERSION__ >= 15009000 #ifndef __LARGE_DATA_MODEL__ .TI.ramfunc : {} load=FRAM, run=RAM, table(BINIT) #else .TI.ramfunc : {} load=FRAM | FRAM2, run=RAM, table(BINIT) #endif #endif #endif .jtagsignature : {} > JTAGSIGNATURE /* JTAG Signature */ .bslsignature : {} > BSLSIGNATURE /* BSL Signature */ .bss : {} > RAM /* Global & static vars */ .data : {} > RAM /* Global & static vars */ .TI.noinit : {} > RAM /* For #pragma noinit */ .cio : {} > RAM /* C I/O buffer */ .sysmem : {} > RAM /* Dynamic memory allocation area */ .stack : {} > RAM (HIGH) /* Software system stack */ .text:_c_int00_noargs_noexit: {} > RESET_VECTOR /* MSP430 Interrupt vectors */ .int00 : {} > INT00 .int01 : {} > INT01 .int02 : {} > INT02 .int03 : {} > INT03 .int04 : {} > INT04 .int05 : {} > INT05 .int06 : {} > INT06 .int07 : {} > INT07 .int08 : {} > INT08 .int09 : {} > INT09 .int10 : {} > INT10 .int11 : {} > INT11 .int12 : {} > INT12 .int13 : {} > INT13 .int14 : {} > INT14 .int15 : {} > INT15 .int16 : {} > INT16 .int17 : {} > INT17 .int18 : {} > INT18 .int19 : {} > INT19 .int20 : {} > INT20 .int21 : {} > INT21 .int22 : {} > INT22 .int23 : {} > INT23 .int24 : {} > INT24 .int25 : {} > INT25 .int26 : {} > INT26 .int27 : {} > INT27 .int28 : {} > INT28 .int29 : {} > INT29 .int30 : {} > INT30 .int31 : {} > INT31 .int32 : {} > INT32 .int33 : {} > INT33 .int34 : {} > INT34 .int35 : {} > INT35 .int36 : {} > INT36 .int37 : {} > INT37 .int38 : {} > INT38 .int39 : {} > INT39 .int40 : {} > INT40 .int41 : {} > INT41 .int42 : {} > INT42 .int43 : {} > INT43 .int44 : {} > INT44 .int45 : {} > INT45 PORT2 : { * ( .int46 ) } > INT46 type = VECT_INIT PORT1 : { * ( .int47 ) } > INT47 type = VECT_INIT ADC : { * ( .int48 ) } > INT48 type = VECT_INIT USCI_B0 : { * ( .int49 ) } > INT49 type = VECT_INIT USCI_A0 : { * ( .int50 ) } > INT50 type = VECT_INIT WDT : { * ( .int51 ) } > INT51 type = VECT_INIT RTC : { * ( .int52 ) } > INT52 type = VECT_INIT TIMER1_A1 : { * ( .int53 ) } > INT53 type = VECT_INIT TIMER1_A0 : { * ( .int54 ) } > INT54 type = VECT_INIT TIMER0_A1 : { * ( .int55 ) } > INT55 type = VECT_INIT TIMER0_A0 : { * ( .int56 ) } > INT56 type = VECT_INIT UNMI : { * ( .int57 ) } > INT57 type = VECT_INIT SYSNMI : { * ( .int58 ) } > INT58 type = VECT_INIT .reset : {} > RESET /* MSP430 Reset vector */ }
This is the main application linker:
MEMORY { SFR : origin = 0x0000, length = 0x0010 PERIPHERALS_8BIT : origin = 0x0010, length = 0x00F0 PERIPHERALS_16BIT : origin = 0x0100, length = 0x0100 RAM : origin = 0x2000, length = 0x0800 INFOA : origin = 0x1800, length = 0x0100 FRAM : origin = 0xC480, length = 0x2F7F FRAM_JUMP_INSTRUCTION : origin = 0xC400, length = 0x0008 FRAM_BOOT_ISR : origin = 0xC408, length = 0x0078 JTAGSIGNATURE : origin = 0xFF80, length = 0x0004, fill = 0xFFFF BSLSIGNATURE : origin = 0xFF84, length = 0x0004, fill = 0xFFFF INT00 : origin = 0xFF88, length = 0x0002 INT01 : origin = 0xFF8A, length = 0x0002 INT02 : origin = 0xFF8C, length = 0x0002 INT03 : origin = 0xFF8E, length = 0x0002 INT04 : origin = 0xFF90, length = 0x0002 INT05 : origin = 0xFF92, length = 0x0002 INT06 : origin = 0xFF94, length = 0x0002 INT07 : origin = 0xFF96, length = 0x0002 INT08 : origin = 0xFF98, length = 0x0002 INT09 : origin = 0xFF9A, length = 0x0002 INT10 : origin = 0xFF9C, length = 0x0002 INT11 : origin = 0xFF9E, length = 0x0002 INT12 : origin = 0xFFA0, length = 0x0002 INT13 : origin = 0xFFA2, length = 0x0002 INT14 : origin = 0xFFA4, length = 0x0002 INT15 : origin = 0xFFA6, length = 0x0002 INT16 : origin = 0xFFA8, length = 0x0002 INT17 : origin = 0xFFAA, length = 0x0002 INT18 : origin = 0xFFAC, length = 0x0002 INT19 : origin = 0xFFAE, length = 0x0002 INT20 : origin = 0xFFB0, length = 0x0002 INT21 : origin = 0xFFB2, length = 0x0002 INT22 : origin = 0xFFB4, length = 0x0002 INT23 : origin = 0xFFB6, length = 0x0002 INT24 : origin = 0xFFB8, length = 0x0002 INT25 : origin = 0xFFBA, length = 0x0002 INT26 : origin = 0xFFBC, length = 0x0002 INT27 : origin = 0xFFBE, length = 0x0002 INT28 : origin = 0xFFC0, length = 0x0002 INT29 : origin = 0xFFC2, length = 0x0002 INT30 : origin = 0xFFC4, length = 0x0002 INT31 : origin = 0xFFC6, length = 0x0002 INT32 : origin = 0xFFC8, length = 0x0002 INT33 : origin = 0xFFCA, length = 0x0002 INT34 : origin = 0xFFCC, length = 0x0002 INT35 : origin = 0xFFCE, length = 0x0002 INT36 : origin = 0xFFD0, length = 0x0002 INT37 : origin = 0xFFD2, length = 0x0002 INT38 : origin = 0xFFD4, length = 0x0002 INT39 : origin = 0xFFD6, length = 0x0002 INT40 : origin = 0xFFD8, length = 0x0002 INT41 : origin = 0xFFDA, length = 0x0002 INT42 : origin = 0xFFDC, length = 0x0002 INT43 : origin = 0xFFDE, length = 0x0002 INT44 : origin = 0xFFE0, length = 0x0002 INT45 : origin = 0xFFE2, length = 0x0002 INT46 : origin = 0xFFE4, length = 0x0002 INT47 : origin = 0xFFE6, length = 0x0002 INT48 : origin = 0xFFE8, length = 0x0002 INT49 : origin = 0xFFEA, length = 0x0002 INT50 : origin = 0xFFEC, length = 0x0002 INT51 : origin = 0xFFEE, length = 0x0002 INT52 : origin = 0xFFF0, length = 0x0002 INT53 : origin = 0xFFF2, length = 0x0002 INT54 : origin = 0xFFF4, length = 0x0002 INT55 : origin = 0xFFF6, length = 0x0002 INT56 : origin = 0xFFF8, length = 0x0002 INT57 : origin = 0xFFFA, length = 0x0002 INT58 : origin = 0xFFFC, length = 0x0002 RESET : origin = 0xFFFE, length = 0x0002 } /****************************************************************************/ /* Specify the sections allocation into memory */ /****************************************************************************/ SECTIONS { GROUP(ALL_FRAM) { GROUP(READ_WRITE_MEMORY) { .TI.persistent : {} /* For #pragma persistent */ } GROUP(READ_ONLY_MEMORY) { .cinit : {} /* Initialization tables */ .pinit : {} /* C++ constructor tables */ .init_array : {} /* C++ constructor tables */ .mspabi.exidx : {} /* C++ constructor tables */ .mspabi.extab : {} /* C++ constructor tables */ .const : {} /* Constant data */ } GROUP(EXECUTABLE_MEMORY) { .text : {} /* Code */ .text:_isr : {} } } > FRAM .jtagsignature : {} > JTAGSIGNATURE /* JTAG Signature */ .bslsignature : {} > BSLSIGNATURE /* BSL Signature */ .jtagpassword /* JTAG Password */ .bss : {} > RAM /* Global & static vars */ .data : {} > RAM /* Global & static vars */ .TI.noinit : {} > RAM /* For #pragma noinit */ .cio : {} > RAM /* C I/O buffer */ .sysmem : {} > RAM /* Dynamic memory allocation area */ .stack : {} > RAM (HIGH) /* Software system stack */ .reset_vector : {} > FRAM_BOOT_ISR
.text:_c_int00_noargs_noexit: {} > FRAM_BOOT_ISR /* MSP430 Interrupt vectors */ .int00 : {} > INT00 .int01 : {} > INT01 .int02 : {} > INT02 .int03 : {} > INT03 .int04 : {} > INT04 .int05 : {} > INT05 .int06 : {} > INT06 .int07 : {} > INT07 .int08 : {} > INT08 .int09 : {} > INT09 .int10 : {} > INT10 .int11 : {} > INT11 .int12 : {} > INT12 .int13 : {} > INT13 .int14 : {} > INT14 .int15 : {} > INT15 .int16 : {} > INT16 .int17 : {} > INT17 .int18 : {} > INT18 .int19 : {} > INT19 .int20 : {} > INT20 .int21 : {} > INT21 .int22 : {} > INT22 .int23 : {} > INT23 .int24 : {} > INT24 .int25 : {} > INT25 .int26 : {} > INT26 .int27 : {} > INT27 .int28 : {} > INT28 .int29 : {} > INT29 .int30 : {} > INT30 .int31 : {} > INT31 .int32 : {} > INT32 .int33 : {} > INT33 .int34 : {} > INT34 .int35 : {} > INT35 .int36 : {} > INT36 .int37 : {} > INT37 .int38 : {} > INT38 .int39 : {} > INT39 .int40 : {} > INT40 .int41 : {} > INT41 .int42 : {} > INT42 .int43 : {} > INT43 .int44 : {} > INT44 .int45 : {} > INT45 PORT2 : { * ( .int46 ) } > INT46 type = VECT_INIT PORT1 : { * ( .int47 ) } > INT47 type = VECT_INIT ADC : { * ( .int48 ) } > INT48 type = VECT_INIT USCI_B0 : { * ( .int49 ) } > INT49 type = VECT_INIT USCI_A0 : { * ( .int50 ) } > INT50 type = VECT_INIT WDT : { * ( .int51 ) } > INT51 type = VECT_INIT RTC : { * ( .int52 ) } > INT52 type = VECT_INIT TIMER1_A1 : { * ( .int53 ) } > INT53 type = VECT_INIT TIMER1_A0 : { * ( .int54 ) } > INT54 type = VECT_INIT TIMER0_A1 : { * ( .int55 ) } > INT55 type = VECT_INIT TIMER0_A0 : { * ( .int56 ) } > INT56 type = VECT_INIT UNMI : { * ( .int57 ) } > INT57 type = VECT_INIT SYSNMI : { * ( .int58 ) } > INT58 type = VECT_INIT .reset : {} > FRAM_JUMP_INSTRUCTION /* MSP430 Reset vector */ }
This is the jump instruction in the main application to jump to the boot loaders reset:
#pragma RETAIN(bootloader_jump) #pragma location=0xC400 const int bootloader_jump[] = {0x0280, 0x1900};
This is the jump from the boot loader back to the main:
((void (*)()) 0xC408) ();
And this is the brown out reset:
PMMCTL0 = PMMPW|PMMSWBOR;
Thanks.