请问我们能在PIC24F芯片上动态存取EEPROM数据吗？

大家好，我使用的是PIC24FV32KA304和MPLLABXIDE(v3.30)以及XC 16(v1.26)。在PIC24FV32KA304中，数据EEPROM从7FFE00h映射到7FFFFFFFh(256个字)。EEPROM操作可以使用NVMCON、NVMKEY和NVMADR寄存器完成。我参考了PIC24FV32KA304的数据表。全局变量可以在数据EEPROM中定义如下.int_.((space(eedata))eeData=0x1234，并且可以使用下面的库函数来访问。TBLPAG=u builtin_tblpage(&eeData)；offset=u builtin_tbloffset(&eeData)；u builtin_tblwtl(offset,newData)；u builtin_write_NVM();data=u builtin_tblrdl(offset);我的要求是在数据EEPROM区域中的指定地址位置创建/读取/更新变量和变量集。我需要管理(存储/读取)数据EEPROM中的大量数据。我们能在PIC24F芯片上动态存取EEPROM数据吗？请给我推荐其他的选择。谢谢你，Kathappan。



      以下为原文

    Hi all,

I am using PIC24FV32KA304 and MPLAB X IDE (v3.30) along with XC 16 (v1.26).

In in PIC24FV32KA304, the data EEPROM is mapped to the memory address from 7FFE00h to 7FFFFFh(256 words).

The EEPROM operations can be done using NVMCON, NVMKEY and NVMADR registers.

I referred the datasheet of PIC24FV32KA304, the global variable can be defined in data EEPROM as below.

int __attribute__ ((space(eedata))) eeData = 0x1234;

and it can be accessed using below library functions.


TBLPAG = __builtin_tblpage(&eeData);
offset = __builtin_tbloffset(&eeData);
__builtin_tblwtl(offset, newData);
__builtin_write_NVM();
data = __builtin_tblrdl(offset);

My requirement is to create/read/update variable and set of variables at specified address location in data EEPROM area. I need to mange (store / read) bulk of data in data EEPROM.  

Can we able to do dynamic access of EEPROM data in PIC24F chip?

Kindly suggest me the any other options.

Thanks in Advance,
Kathappan