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编写dsp程序时，由于代码较长，超过片内RAM空间，所以改为烧写flash
开始烧写代码，运行程序，结果均正常；然后在此基础上添加一段代码（代码内容类似，没有错误），结果运行程序后，程序跳入非法中断 interrupt void ILLEGAL_ISR(void)，不知为何。仅仅是添加一段代码，结果出现非法中断，百思不得其解，请高手指点一下。多谢多谢。 程序中cmd文件如下： MEMORY { PAGE 0: /* Program Memory */ /* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */ ZONE0 : origin = 0x004000, length = 0x001000 /* XINTF zone 0 */ RAML0 : origin = 0x008000, length = 0x005000 /* on-chip RAM block L0 */ /*RAML1 : origin = 0x009000, length = 0x001000*/ /* on-chip RAM block L1 */ /*RAML2 : origin = 0x00A000, length = 0x001000*/ /* on-chip RAM block L2 */ /*RAML3 : origin = 0x00B000, length = 0x001000*/ /* on-chip RAM block L3 */ ZONE6 : origin = 0x0100000, length = 0x100000 /* XINTF zone 6 */ ZONE7A : origin = 0x0200000, length = 0x00FC00 /* XINTF zone 7 - program space */ FLASHH : origin = 0x300000, length = 0x008000 /* on-chip FLASH */ /*FLASHG : origin = 0x308000, length = 0x008000*/ /* on-chip FLASH */ /*FLASHF : origin = 0x310000, length = 0x008000*/ /* on-chip FLASH */ /*FLASHE : origin = 0x318000, length = 0x008000*/ /* on-chip FLASH */ /*FLASHD : origin = 0x320000, length = 0x008000*/ /* on-chip FLASH */ /*FLASHC : origin = 0x328000, length = 0x008000*/ /* on-chip FLASH */ FLASHA : origin = 0x308000, length = 0x012000 /* on-chip FLASH */ CSM_RSVD : origin = 0x33FF80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */ BEGIN : origin = 0x33FFF6, length = 0x000002 /* Part of FLASHA. Used for "boot to Flash" bootloader mode. */ CSM_PWL : origin = 0x33FFF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */ OTP : origin = 0x380400, length = 0x000400 /* on-chip OTP */ ADC_CAL : origin = 0x380080, length = 0x000009 /* ADC_cal function in Reserved memory */ IQTABLES : origin = 0x3FE000, length = 0x000b50 /* IQ Math Tables in Boot ROM */ IQTABLES2 : origin = 0x3FEB50, length = 0x00008c /* IQ Math Tables in Boot ROM */ FPUTABLES : origin = 0x3FEBDC, length = 0x0006A0 /* FPU Tables in Boot ROM */ ROM : origin = 0x3FF27C, length = 0x000D44 /* Boot ROM */ RESET : origin = 0x3FFFC0, length = 0x000002 /* part of boot ROM */ VECTORS : origin = 0x3FFFC2, length = 0x00003E /* part of boot ROM */ PAGE 1 : /* Data Memory */ /* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */ /* Registers remain on PAGE1 */ BOOT_RSVD : origin = 0x000000, length = 0x000050 /* Part of M0, BOOT rom will use this for stack */ RAMM0 : origin = 0x000050, length = 0x0003B0 /* on-chip RAM block M0 */ RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */ /*RAML4 : origin = 0x00C000, length = 0x001000*/ /* on-chip RAM block L1 */ RAML5 : origin = 0x00D000, length = 0x001000 /* on-chip RAM block L1 */ RAML6 : origin = 0x00E000, length = 0x001000 /* on-chip RAM block L1 */ RAML7 : origin = 0x00F000, length = 0x001000 /* on-chip RAM block L1 */ ZONE7B : origin = 0x20FC00, length = 0x000400 /* XINTF zone 7 - data space */ ZONE7A : origin = 0x210000, length = 0x010000 /*FLASHB : origin = 0x330000, length = 0x008000*/ /* on-chip FLASH */ } /* Allocate sections to memory blocks. Note: codestart user defined section in DSP28_CodeStartBranch.asm used to redirect code execution when booting to flash ramfuncs user defined section to store functions that will be copied from Flash into RAM */ SECTIONS { /* Allocate program areas: */ .cinit : > FLASHA PAGE = 0 .pinit : > FLASHA, PAGE = 0 .text : > FLASHA PAGE = 0 codestart : > BEGIN PAGE = 0 ramfuncs : LOAD = FLASHA, RUN = RAML0, LOAD_START(_RamfuncsLoadStart), LOAD_END(_RamfuncsLoadEnd), RUN_START(_RamfuncsRunStart), PAGE = 0 csmpasswds : > CSM_PWL PAGE = 0 csm_rsvd : > CSM_RSVD PAGE = 0 /* Allocate uninitalized data sections: */ .stack : > RAMM1 PAGE = 1 .ebss : > RAML5 PAGE = 1 .esysmem : > RAMM1 PAGE = 1 /* Initalized sections go in Flash */ /* For SDFlash to program these, they must be allocated to page 0 */ .econst : > FLASHA PAGE = 0 .switch : > FLASHA PAGE = 0 /* Allocate IQ math areas: */ IQmath : > FLASHA PAGE = 0 /* Math Code */ IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD IQmathTables2 : > IQTABLES2, PAGE = 0, TYPE = NOLOAD FPUmathTables : > FPUTABLES, PAGE = 0, TYPE = NOLOAD /* Allocate DMA-accessible RAM sections: */ DMARAML4 : > RAML5, PAGE = 1 DMARAML5 : > RAML5, PAGE = 1 DMARAML6 : > RAML6, PAGE = 1 DMARAML7 : > RAML7, PAGE = 1 /* Allocate 0x400 of XINTF Zone 7 to storing data */ data : > ZONE7A, PAGE = 1 ZONE7DATA : > ZONE7B, PAGE = 1 /* .reset is a standard section used by the compiler. It contains the */ /* the address of the start of _c_int00 for C Code. /* /* When using the boot ROM this section and the CPU vector */ /* table is not needed. Thus the default type is set here to */ /* DSECT */ .reset : > RESET, PAGE = 0, TYPE = DSECT vectors : > VECTORS PAGE = 0, TYPE = DSECT /* Allocate ADC_cal function (pre-programmed by factory into TI reserved memory) */ .adc_cal : load = ADC_CAL, PAGE = 0, TYPE = NOLOAD } 
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6个回答
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这个问题可以从这个思路走一下：
（1）检查一下，新添加的代码是否在某个中断内不？原因是因为中断没有执行完，异常结束了。 （2）找问题，首先不找cmd文件的问题。 我个人见解。 |
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2014-2-13 19:30:33
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如果方便，可以把你添加的代码和被添加的部分，粘出来，我看一下。
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2014-2-13 19:31:11
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我也遇到过非法中断问题，百思不得其解，我很想了解非法中断引起原因可能有哪些？硬件问题也会引起此问题？
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你好，非常感谢的您的建议，我的程序是产生ｐｗｍ，在放在中断中完成。 现在情况是在原来正常的代码基础上，添加一段类似的语句，然后跳入非法中断，跟您说的原因一样；利用单步执行，发现程序进入中断后，在中间某个地方if语句执行完后，直接跳入非法中断。然后屏蔽前面原来正常的一段代码，同时新代码也加上，这样就又可以正常运行了。 现在我怀疑是和程序的代码长度有关（10000行代码），或者是类似堆栈缓存空间不足，但尝试了没有作用。 |
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2014-3-17 14:44:09
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........................................
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你好， 你的问题解决了吗？我也遇到相同问题，芯片是28035，也是加了一小段程序就进入非法中断，无法解决，如果你找到方法请不吝赐教
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