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各位工程师大家晚上好!我想请问下如何配置dsp28377D浮点数库文件!我配置的浮点除法 FS$$DIV一直不对。
我在您的另一个帖子中看到您似乎没有给fpu分配内存?
C:\ti\c2000\C2000Ware_4_01_00_00\libraries\math\FPUfastRTS\c28\examples\common\f2838x 下的 fastrts_examples_lnk.cmd 您参考一下。
您也可以把您的cmd文件发上来,我帮您看一下
您好,这是我的cmd文件
MEMORY { PAGE 0 : /* BEGIN is used for the "boot to SARAM" bootloader mode */ BEGIN : origin = 0x000000, length = 0x000002 RAMM0 : origin = 0x000122, length = 0x0002DE RAMD0 : origin = 0x00B000, length = 0x000800 RAMLS0 : origin = 0x008000, length = 0x000800 RAMLS1 : origin = 0x008800, length = 0x000800 RAMLS2 : origin = 0x009000, length = 0x000800 RAMLS3 : origin = 0x009800, length = 0x000800 RAMLS4 : origin = 0x00A000, length = 0x000800 RESET : origin = 0x3FFFC0, length = 0x000002 RAMGS45678 : origin = 0x010000, length = 0x005000 PAGE 1 : BOOT_RSVD : origin = 0x000002, length = 0x000120 /* Part of M0, BOOT rom will use this for stack */ RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */ RAMD1 : origin = 0x00B800, length = 0x000800 RAMLS5 : origin = 0x00A800, length = 0x000800 RAMGS0 : origin = 0x00C000, length = 0x001000 RAMGS1 : origin = 0x00D000, length = 0x001000 RAMGS2 : origin = 0x00E000, length = 0x001000 RAMGS3 : origin = 0x00F000, length = 0x001000 /* RAMGS4 : origin = 0x010000, length = 0x001000 RAMGS5 : origin = 0x011000, length = 0x001000 RAMGS6 : origin = 0x012000, length = 0x001000 RAMGS7 : origin = 0x013000, length = 0x001000 RAMGS8 : origin = 0x014000, length = 0x001000 */ RAMGS9 : origin = 0x015000, length = 0x001000 RAMGS10 : origin = 0x016000, length = 0x001000 RAMGS11 : origin = 0x017000, length = 0x001000 RAMGS12 : origin = 0x018000, length = 0x001000 RAMGS13 : origin = 0x019000, length = 0x001000 RAMGS14 : origin = 0x01A000, length = 0x001000 RAMGS15 : origin = 0x01B000, length = 0x001000 CPU2TOCPU1RAM : origin = 0x03F800, length = 0x000400 CPU1TOCPU2RAM : origin = 0x03FC00, length = 0x000400 } SECTIONS { codestart : > BEGIN, PAGE = 0 #ifdef __TI_COMPILER_VERSION__ #if __TI_COMPILER_VERSION__ >= 15009000 .TI.ramfunc : {} > RAMM0, PAGE = 0 #else #endif #endif ramfuncs : > RAMGS45678, PAGE = 0 .text : >>RAMM0 | RAMD0 | RAMLS0 | RAMLS1 | RAMLS2 | RAMLS3 | RAMLS4, PAGE = 0 .cinit : > RAMM0| RAMD0, PAGE = 0 .pinit : > RAMM0, PAGE = 0 .switch : > RAMM0, PAGE = 0 .reset : > RESET, PAGE = 0, TYPE = DSECT /* not used, */ .stack : > RAMM1, PAGE = 1 .ebss : > RAMLS5, PAGE = 1 .econst : > RAMLS5, PAGE = 1 .esysmem : > RAMLS5, PAGE = 1 Filter_RegsFile : > RAMGS0, PAGE = 1 ramgs0 : > RAMGS0, PAGE = 1 ramgs1 : > RAMGS1, PAGE = 1 /* The following section definitions are required when using the IPC API Drivers */ GROUP : > CPU1TOCPU2RAM, PAGE = 1 { PUTBUFFER PUTWRITEIDX GETREADIDX } GROUP : > CPU2TOCPU1RAM, PAGE = 1 { GETBUFFER : TYPE = DSECT GETWRITEIDX : TYPE = DSECT PUTREADIDX : TYPE = DSECT } } /* //=========================================================================== // End of file. //=========================================================================== */
您如果不需要修改链接文件的话,先用
C:\ti\c2000\C2000Ware_4_01_00_00\libraries\math\FPUfastRTS\c28\examples\common\f2838x 下的 fastrts_examples_lnk.cmd
替换掉工程中的链接文件试一下。
你好,我用该文件替换2837x_RAM_lnk_cpu1.cmd后,会报错。我请问一下,在编程时候我用 / 当做除号,是不是比使用 FS$$DIV在运算时候慢一些?
是的;应该尽量使用 * 来代替 / 。
这几个链接与您的报错有关,您看一下:
https://software-dl.ti.com/ccs/esd/documents/dmed/HTML/10234.html
简单来说就是链接器没有找到 FS$$DIV 的相关定义。您可能有一些文件没有链接到。