• can i RET in the interrupt insted of RETI
    Hi! i use p89v51rd2fa microcontroller and microversion 3 C51 compiler. if i write an interrupt function in c the compiler create a asm code like push ACC push PSW a=b; pop PSW pop ACC RETI ...
  • What's the diff between Grounding and Earthing ?
    Hi people! On AC power earth could be distinguish in two terms that is protectif earth and service earth. The first is used to protect people against accidental leakage of current on equipment. ...
  • RETI doesn't work
    Hello, I would like to realise a small OS for a microchip. I already have a running OS for the C167CR-LM and would like to also run it on a XC167CI. But the version for the Target XC167CI has a problem...
  • why ret do not return??
    I have been work on the UPSD3354DV mcu, my application is large than 64k, so I use the bank1 and bank2 as code area. now I want to use other bank(like bank3) as data area, but when select bank3 before...
  • Diff between File system and FAT file system
    Hi to all, i started to work on FAT file system on SD 1GB card. LPC2388 on MCB2300 board. Just now i have completed my binary search on File system on SD card. Simply fopen, fread, fseek,etc. ...