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2024-09-03
回复了主题帖：关于DSP28335外扩SRAM写数据后数据跳变的问题及SRAM赋值问题

wangerxian 发表于 2024-6-26 20:31 大概率是SRAM通信时许的问题。抱歉，之前问题这个一直搁置了。以下是zone7的初始化，请问这个时序存在问题嘛？ /* * init_zone7.c * * Created on: 2024年6月11日 * Author: Saturday */ #include <APP/xint_zone67/init_zone67.h> void init_zone7(void) { EALLOW; // Make sure the XINTF clock is enabled SysCtrlRegs.PCLKCR3.bit.XINTFENCLK = 1; EDIS; // Configure the GPIO for XINTF with a 16-bit data bus // This function is in DSP2833x_Xintf.c InitXintf16Gpio(); // All Zones--------------------------------- // Timing for all zones based on XTIMCLK = SYSCLKOUT EALLOW; XintfRegs.XINTCNF2.bit.XTIMCLK = 0; // Buffer up to 3 writes XintfRegs.XINTCNF2.bit.WRBUFF = 3; // XCLKOUT is enabled XintfRegs.XINTCNF2.bit.CLKOFF = 0; // XCLKOUT = XTIMCLK XintfRegs.XINTCNF2.bit.CLKMODE = 0; // Zone 7------------------------------------ // When using ready, ACTIVE must be 1 or greater // Lead must always be 1 or greater // Zone write timing XintfRegs.XTIMING7.bit.XWRLEAD = 3; XintfRegs.XTIMING7.bit.XWRACTIVE = 7; XintfRegs.XTIMING7.bit.XWRTRAIL = 3; // Zone read timing XintfRegs.XTIMING7.bit.XRDLEAD = 3; XintfRegs.XTIMING7.bit.XRDACTIVE = 7; XintfRegs.XTIMING7.bit.XRDTRAIL = 3; // don't double all Zone read/write lead/active/trail timing XintfRegs.XTIMING7.bit.X2TIMING = 0; // Zone will not sample XREADY signal XintfRegs.XTIMING7.bit.USEREADY = 0; XintfRegs.XTIMING7.bit.READYMODE = 0; // 1,1 = x16 data bus // 0,1 = x32 data bus // other values are reserved XintfRegs.XTIMING7.bit.XSIZE = 3; EDIS; //Force a pipeline flush to ensure that the write to //the last register configured occurs before returning. asm(" RPT #7 || NOP"); }
2024-09-02
发表了主题帖： TMS320F28335 添加了一句程序后，编译没有问题，但ILLEGAL_ISR报错

在初始化阶段，我的程序需要读取文件中的数据，因此添加了一条“fscanf(p1, "%f", &ry[i]); ”程序。在未添加之前，程序可以正常运行；添加之后，编译没有问题，但是运行时程序就会跳转到ILLEGAL_ISR报错。通过设置断点，发现跳转报错前执行的最后一条指令是void InitSpiaGpio()里的EALLOW。如果将fscanf这两句程序注释掉，那么程序正常运行。下面贴上初始化阶段的程序。 /* * INIT.c * * Created on: 2023年5月29日 * Author: gy */ #include "main.h" void SYSTERM_INIT() { InitSysCtrl(); //初始化PIE控制寄存器和PIE中断向量表 InitPieCtrl(); IER = 0x0000; IFR = 0x0000; InitPieVectTable(); LED_Init(); DAC8563_Init(); EQEP1_Init(); init_zone67(); //// -------------读取u_ff数据------------ int i=0; FILE *p1 = fopen("C:\\Users\\Saturday\\Desktop\\data_4000\\ry_init.dat", "r"); //1.dat文件放在.c文件所在的文件夹中 FILE *p2 = fopen("C:\\Users\\Saturday\\Desktop\\data_4000\\uff_init.dat", "r"); //1.dat文件放在.c文件所在的文件夹中 // FILE *p1 = fopen("C:\\Users\\Saturday\\Desktop\\data_4000\\ry_4000_1v1.dat", "r"); //1.dat文件放在.c文件所在的文件夹中 // FILE *p2 = fopen("C:\\Users\\Saturday\\Desktop\\data_4000\\uff_4000_1v1.dat", "r"); //1.dat文件放在.c文件所在的文件夹中 if (p1==NULL) //检测是否成功打开 printf("Open failed\n"); if (p2==NULL) //检测是否成功打开 printf("Open failed\n"); for (i = 0; i<20000; i++) { fscanf(p1, "%f", &ry[i]); //读入1.dat数据给数组c fscanf(p2, "%f", &u_ff[i]); if(i%1000==0){ printf("%f\t%d\n", u_ff[i],i);} } fclose(p1);//释放指针 fclose(p2);//释放指针 printf("load memory over"); ////--------------------------------------------- // //-------------------开机复位程序----------------------- while(GpioDataRegs.GPADAT.bit.GPIO12 == 1){ // Dac8563_reg_write(0x1F,31000); //第三个参数为复位时的电压设置的小一些 SET_SYNC; DELAY_US(1); // if(GpioDataRegs.GPADAT.bit.GPIO12 == 0) break; } if(GpioDataRegs.GPADAT.bit.GPIO12 == 0){ Dac8563_reg_write(0x1F,33500); // 往正方向走一点，使得限位开关变为未触发状态 SET_SYNC; DELAY_US(1); DELAY_US(3000000); //延时1s } // Dac8563_reg_write(0x1F,32768); SET_SYNC; DELAY_US(1); DELAY_US(2000000); //延时2s // -------------------------- //------------------------光栅尺计数清零------------------------- EALLOW; // This is needed to write to EALLOW protected registers EQep1Regs.QPOSCNT = 0; EDIS; //-----------------------初始换定时器和串口------------------------- // TIM1_Init(150,200); UARTb_Init(230400); TIM0_Init(150,200); } 在网上搜索了一些关于此问题的解决方案： 1.晶振出现问题；换了一个28335开发板，问题仍然存在，排除晶振问题。 2.CMD配置堆栈.stack分配空间太小；，但memory allocation中显示是够用的。下面是CMD配置文件。 MEMORY { PAGE 0 : /* BEGIN is used for the "boot to SARAM" bootloader mode */ BEGIN : origin = 0x000000, length = 0x000002 /* Boot to M0 will go here */ RAMM0 : origin = 0x000050, length = 0x0003B0 RAML0L1L2 : origin = 0x008000, length = 0x005000 RAML3 : origin = 0x00D000, length = 0x001000 CSM_RSVD : origin = 0x33FF80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */ CSM_PWL : origin = 0x33FFF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */ ADC_CAL : origin = 0x380080, length = 0x000009 RESET : origin = 0x3FFFC0, length = 0x000002 IQTABLES : origin = 0x3FE000, length = 0x000b50 IQTABLES2 : origin = 0x3FEB50, length = 0x00008c FPUTABLES : origin = 0x3FEBDC, length = 0x0006A0 BOOTROM : origin = 0x3FF27C, length = 0x000D44 PAGE 1 : /* BOOT_RSVD is used by the boot ROM for stack. */ /* This section is only reserved to keep the BOOT ROM from */ /* corrupting this area during the debug process */ BOOT_RSVD : origin = 0x000002, length = 0x00004E /* Part of M0, BOOT rom will use this for stack */ RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */ RAML4 : origin = 0x00C000, length = 0x001000 RAML5 : origin = 0x00D000, length = 0x001000 RAML6 : origin = 0x00E000, length = 0x001000 RAML7 : origin = 0x00F000, length = 0x001000 ZONE7 : origin = 0x200000, length = 0x100000 } SECTIONS { /* Setup for "boot to SARAM" mode: The codestart section (found in DSP28_CodeStartBranch.asm) re-directs execution to the start of user code. */ codestart : > BEGIN, PAGE = 0 ramfuncs : > RAML0L1L2, PAGE = 0 .text : > RAML0L1L2, PAGE = 0 .InitBoot : > RAML0L1L2, PAGE = 0 .cinit : > RAML0L1L2, PAGE = 0 .pinit : > RAML0L1L2, PAGE = 0 .switch : > RAML0L1L2, PAGE = 0 .cio : > RAML4, PAGE = 1 .sysmem : > RAML4, PAGE = 1 .stack : > RAML4, PAGE = 1 .ebss : > RAML4, PAGE = 1 .econst : > RAML5, PAGE = 1 .esysmem : > RAMM1, PAGE = 1 IQmath : > RAML0L1L2, PAGE = 0 IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD FPUmathTables : > FPUTABLES, PAGE = 0, TYPE = NOLOAD DMARAML4 : > RAML4, PAGE = 1 DMARAML5 : > RAML5, PAGE = 1 DMARAML6 : > RAML6, PAGE = 1 DMARAML7 : > RAML7, PAGE = 1 ZONE7DATA : > ZONE7, PAGE = 1 .reset : > RESET, PAGE = 0, TYPE = DSECT /* not used */ csm_rsvd : > CSM_RSVD PAGE = 0, TYPE = DSECT /* not used for SARAM examples */ csmpasswds : > CSM_PWL PAGE = 0, TYPE = DSECT /* not used for SARAM examples */ /* Allocate ADC_cal function (pre-programmed by factory into TI reserved memory) */ .adc_cal : load = ADC_CAL, PAGE = 0, TYPE = NOLOAD } /* //=========================================================================== // End of file. //=========================================================================== */ 3.数组指针问题。由于我用到的数据量较大，使用了外扩SRAM，在CMD中也可以看到定义了ZONE7DATA空间。INIT.c文件中使用的两个数组通过以下方式定义的 #pragma DATA_SECTION(u_ff,"ZONE7DATA"); volatile float u_ff[30000] = {0.0}; #pragma DATA_SECTION(ry,"ZONE7DATA"); volatile float ry[30000] = {0.0}; 这个问题困扰我很久了，实在找不到解决方案，希望看到的各位大佬伸出援手，非常感谢！！
2024-06-26
回复了主题帖：关于DSP28335外扩SRAM写数据后数据跳变的问题及SRAM赋值问题

工程中还使用了串口、spi等，但已经排除其接口与SRAM地址线数据线的复用问题
发表了主题帖：关于DSP28335外扩SRAM写数据后数据跳变的问题及SRAM赋值问题

我使用是是普中科技的28335开发板。因为要存储数组数据，所以外扩了SRAM。定义了ZONE7区域，并将数组变量指定存储到该区域。在定时器中断程序中给该变量赋值，但是在Expression中观察，赋值过后的变量值仍然会跳变，而且在memory browser中观察该值，好像并没有赋值成功。以下是相关程序及截图：图一CpuTimer0.InterruptCount已经超过了数组的范围，然后y_out数据发生了跳变（黄色就代表发生了变化）。图二在memory browser中观察y_out数据空间，但是并没有值被赋值进来？另外就是，我写了给u_ff初始化赋值的语句，但是并没有赋值成功，见图三，这种怎么初始化赋值呢？ //============================= // ----------- time.c---------------- #pragma DATA_SECTION(y_out,"ZONE7DATA"); volatile float y_out[80000] = {0.0}; #pragma DATA_SECTION(u_ff,"ZONE7DATA"); volatile float u_ff[80000] = { {0}, {-5.48168582231433}, {-28.0960788724069}, {-33.2755709254560}, {-28.4364523855368} }; interrupt void TIM0_IRQn(void){ //省略其他无关代码 y_out[CpuTimer0.InterruptCount] = Pos; CpuTimer0.InterruptCount++； } //============================== // --------------28335_RAM_lnk.cmd---------------- PAGE 1 : ZONE7B : origin = 0x201000, length = 0x0F0000 /* XINTF zone 7 */ SECTIONS ZONE7DATA : > ZONE7B, PAGE = 1 //============================== // -------------init_zone7.c -------------------------- void init_zone67(void) { EALLOW; // Make sure the XINTF clock is enabled SysCtrlRegs.PCLKCR3.bit.XINTFENCLK = 1; EDIS; // Configure the GPIO for XINTF with a 16-bit data bus // This function is in DSP2833x_Xintf.c InitXintf16Gpio(); // All Zones--------------------------------- // Timing for all zones based on XTIMCLK = SYSCLKOUT EALLOW; XintfRegs.XINTCNF2.bit.XTIMCLK = 0; // Buffer up to 3 writes XintfRegs.XINTCNF2.bit.WRBUFF = 3; // XCLKOUT is enabled XintfRegs.XINTCNF2.bit.CLKOFF = 0; // XCLKOUT = XTIMCLK XintfRegs.XINTCNF2.bit.CLKMODE = 0; XintfRegs.XTIMING7.bit.XWRLEAD = 3; XintfRegs.XTIMING7.bit.XWRACTIVE = 7; XintfRegs.XTIMING7.bit.XWRTRAIL = 3; // Zone read timing XintfRegs.XTIMING7.bit.XRDLEAD = 3; XintfRegs.XTIMING7.bit.XRDACTIVE = 7; XintfRegs.XTIMING7.bit.XRDTRAIL = 3; // don't double all Zone read/write lead/active/trail timing XintfRegs.XTIMING7.bit.X2TIMING = 1; // Zone will not sample XREADY signal XintfRegs.XTIMING7.bit.USEREADY = 1; XintfRegs.XTIMING7.bit.READYMODE = 1; // 1,1 = x16 data bus // 0,1 = x32 data bus // other values are reserved XintfRegs.XTIMING7.bit.XSIZE = 3; EDIS; //Force a pipeline flush to ensure that the write to //the last register configured occurs before returning. asm(" RPT #7 || NOP"); }

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关于DSP28335外扩SRAM写数据后数据跳变的问题及SRAM赋值问题

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等了你半田

工程中还使用了串口、spi等，但已经排除其接口与SRAM地址线数据线的复用问题

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