Dspic33FJ128 Codeguard：bss conf导致设备在擦除内存页面时重置

大家好，我想在我的DSPIC33中把引导安全段添加到我的Bootloader中。我激活了引导段，下面的问题是，当我试图擦除内存页时，设备重置自己。擦除功能是这样的，我认为这是因为BWRPYWrPrExtExtEon块EV。即使是从同一个区段写入请求也尝试使用BWRPYWrPrExtExtOffOf，而不是重置本身，设备停止工作，我不能调试它，但是它停止打开和关闭通常闪烁的LED。即使我把设备关闭和打开，它也不再运行（就像程序被完全擦除一样）。CycGrGron寄存器也没有给出任何关于配置BWRPSYWRP保护程序的重置原因的提示，你能帮助我吗？我显然错过了什么，但是看不到什么。谢谢你的时间。



      以下为原文

    Hi everyone,

i wanted to add a boot secure segment to my bootloader in my dspic33f.
i activate the boot segment with the following

/*
Boot Segment Configuration Register Byte
RBS_NO_RAM No Boot RAM
BSS_MEDIUM_FLASH_STD Standard Security, Medium-sized Boot Flash
BWRP_WRPROTECT_ON Boot segment is write-protected
*/
_FBS(BWRP_WRPROTECT_ON & BSS_MEDIUM_FLASH_STD & RBS_NO_RAM );

the problem is that now when i try to erase a memory page the device reset itself.

The erase function is this

.section *,code,boot
_Erase:
push TBLPAG
mov W2,NVMCON
     
mov w0,TBLPAG ; Init Pointer to page to be erased
tblwtl w1,[w1] ; Dummy write to select the row

mov #0x55,W0 ;Unlock sequence - interrupts need to be off
mov W0,NVMKEY
mov #0xAA,W0
mov W0,NVMKEY
bset NVMCON,#WR
nop ;Required
nop

I thought i was due to the fact that BWRP_WRPROTECT_ON blocks every write request even from the same segment butI also tried to use BWRP_WRPROTECT_OFF and instead of resetting itself, the device stop working, i'm not able to debug it but it stop turning on and off the leds that normally keep blinking. Even if i turn the device off and on again it doesn't run anymore (like if the program was completely erased).

Also checking RCON register does not give any hint on the reset reason of the configuration BWRP_WRPROTECT_ON

Can you help me? i'm clearly missing something but can't see what.

Thank you for your time