Dspic33EP512*写flash的问题

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elephant00| 高级工程师

楼主 | 2021-8-19 10:12 | 只看该作者回帖奖励

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flash, dspic33, AD, ui, address, TI

用的是Dspic33ep512GM310，把一些参数写在flash里面保存，写的地址是0x52400，在擦除和写之后，Usart中断就停止工作了，是不是我的擦除函数和写函数有问题，熟悉的帮我看下
uint8 PageErase( uint32 flashAddress )
{
NVMADR = ( flashAddress & 0xffff );
NVMADRU = ( (flashAddress >> 16) & 0xffff );

while(NVMCONbits.WR);
NVMCON = 0x4003;
__builtin_disi( 6);
__builtin_write_NVM();
Nop();
Nop();
while(NVMCONbits.WR);
Nop();
Nop();
NVMCONbits.WREN=0;
Nop();

if( (NVMCONbits.WRERR == 1) || (NVMCONbits.URERR == 1) )
{
      return ( WRERR_OR_UERR_ERROR );
}
else
{
      return ( NO_ERROR );
}
}
uint8  WordWrite( uint32 flashAddress, uint16 ramBuffer1,uint16 ramBuffer2)
{
// Set up the NVMADR registers to the starting address of the page
NVMADR = ( flashAddress & 0xFFFF );
NVMADRU = ( (flashAddress >> 16) & 0xFFFF );
NVMCON = 0x4001;
TBLPAG=0xfa;
__builtin_tblwtl(0x0000,ramBuffer1);//(( flashAddress & 0xFFFF ),ramBuffer);
__builtin_tblwth(0x0001,0x00);//(( flashAddress & 0xFFFF )+1,0x00);
__builtin_tblwtl(0x0002,ramBuffer2);
__builtin_tblwth(0x0003,0x00);
__builtin_disi( 6);
__builtin_write_NVM();

if( (NVMCONbits.WRERR == 1) || (NVMCONbits.URERR == 1) )
{
      return ( WRERR_OR_UERR_ERROR );
}
else
{
      return ( NO_ERROR );
}

}

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