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EMIF16问题

WendyZ
Intellectual 426 points

各位大虾，我想通过EMIF16将外接FPGA输出的信号传给DSP，但是以前没用到过EMIF，虽然看了一些资料但是还是没有太多头绪，请问下能不能提供个EMIF的例程？万分感谢！！！

  • 0
    TI__Guru 61135 points

    C66X EMIF测试例程：http://www.deyisupport.com/question_answer/dsp_arm/c6000_multicore/f/53/t/6242.aspx

  • 0 回复 Andy Yin
    Intellectual 426 points

    你好Andy Yin,

    我试了一下你提供的例程,编译之后出现了跟原帖一样的问题.

    Description Resource Path Location Type
    identifier "CSL_EMIF16_AWCCR_CE0WAIT_MASK" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 117 C/C++ Problem
    identifier "CSL_EMIF16_AWCCR_CE0WAIT_SHIFT" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 117 C/C++ Problem
    identifier "CSL_EMIF16_CFG_REGS" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 23 C/C++ Problem
    identifier "CSL_EMIF16_NANDFCTL_CE0NAND_MASK" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 132 C/C++ Problem
    identifier "CSL_EMIF16_NANDFCTL_CE0NAND_SHIFT" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 132 C/C++ Problem
    identifier "CSL_EMIF16_PMCR_CE0PGDEL_MASK" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 124 C/C++ Problem
    identifier "CSL_EMIF16_PMCR_CE0PGDEL_SHIFT" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 124 C/C++ Problem
    identifier "CSL_EMIF16_PMCR_CE0PGMDEN_MASK" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 126 C/C++ Problem
    identifier "CSL_EMIF16_PMCR_CE0PGMDEN_SHIFT" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 126 C/C++ Problem
    identifier "CSL_EMIF16_PMCR_CE0PGSIZE_MASK" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 125 C/C++ Problem
    identifier "CSL_EMIF16_PMCR_CE0PGSIZE_SHIFT" is undefined KeyStone_EMIF16_Init.c /EMIF/common line 125 C/C++ Problem
    identifier "CSL_PSC_LPSC_VUSR" is undefined KeyStone_HyperLink_Init.c /EMIF/common line 43 C/C++ Problem
    identifier "CSL_PSC_LPSC_VUSR" is undefined KeyStone_HyperLink_Init.c /EMIF/common line 116 C/C++ Problem

  • 0 回复 WendyZ
    TI__Guru 61135 points

    如原帖所说，该例程是基于C6614，如果使用C6678的话，两者底层CSL的一些宏定义不一样，你需要在C6678 CSL中找到相应的宏替代。

  • 0 回复 Andy Yin
    Intellectual 426 points

    Andy Yin1你好,

    我将csl宏定义更正,现在这部分没报错了(我将CE0改成CS2,这样对应正确么?比如CSL_EMIF16_AWCCR_CE0WAIT_SHIFT改成CSL_EMIF16_AWCCR_CS2WAIT_SHIFT，另外其他参数比如程序中的i也需要改么?)

    现在我的程序仍有错误,如下所示

    Description Resource Path Location Type
    identifier "DEVICE_EMIF_NAND_ALE_OFFSET" is undefined flash_nand.c /EMIF/src/FLASH line 456 C/C++ Problem
    identifier "DEVICE_EMIF_NAND_CLE_OFFSET" is undefined flash_nand.c /EMIF/src/FLASH line 451 C/C++ Problem
    identifier "DEVICE_EMIF_NAND_DATA_OFFSET" is undefined flash_nand.c /EMIF/src/FLASH line 465 C/C++ Problem
    identifier "DEVICE_EMIF_NAND_DATA_OFFSET" is undefined flash_nand.c /EMIF/src/FLASH line 507 C/C++ Problem
    identifier "DEVICE_EMIF_NAND_DATA_OFFSET" is undefined flash_nand.c /EMIF/src/FLASH line 526 C/C++ Problem
    identifier "DEVICE_EMIF_NAND_TIMEOUT" is undefined flash_nand.c /EMIF/src/FLASH line 122 C/C++ Problem
    identifier "DEVICE_EMIF_NAND_TIMEOUT" is undefined flash_nand.c /EMIF/src/FLASH line 149 C/C++ Problem
    identifier "DEVICE_EMIF_NAND_TIMEOUT" is undefined flash_nand.c /EMIF/src/FLASH line 285 C/C++ Problem
    identifier "DEVICE_EMIF_NAND_TIMEOUT" is undefined flash_nand.c /EMIF/src/FLASH line 377 C/C++ Problem
    struct "<unnamed>" has no field "NFECCCE0" flash_nand.c /EMIF/src/FLASH line 615 C/C++ Problem

    但是比如我去源码中找,比如第一个提示错误NAND_ALE_OFFSET,因为调用了flash_nand.h, 所以是定义了的,能直接跳到

    #define NAND_ALE_OFFSET     DEVICE_EMIF_NAND_ALE_OFFSET, 但是为什么还会提示错误？

    谢谢解答。