• some register issue for my compiler
    Hi Community, I have some issues regarding my keil uvision series, as well as arm cortex m3 and c51 understanding. A friend of mine using keil uvision v514.2 and i am using mdk454 which is a...
  • some problems about debug on AT91SAM7A3?
    I want to use the Ulink to debug AT91SAM7A3, when I choose the chip, i found the chip just have 16K RAM, but in fact AT91SAM7A3 has 32k RAM, may this is a bug of Keil? When I want to download the code...
  • Some questions about LPCUSB with LPC2378
    (Sorry for my limited English ability.) I have been assigned to develop an USB based I/O board (software portion). The requirement of this I/O board has never been discussed and never been defined...
  • some questions about timers in LPC1768
    Hi, I have little problems with timers in LPC1768. I need to start timer2 because I use timer0 and timer1. When I want to configure and start timer2 all program doesn't start and I see nothing reaction...
  • Some questions about ISP&IAP
    Some ISP Flash microcontroller embed the bootloader on_chip,and ROM/FLASH can be erase&reprogram from 0x0000h to 0xffffh.But C8051F020's bootloader occupy space in the 64K flash,How bootloader call the...