• Interrupt stack frames?
    Someone suggested that I use 2-byte interrupt stack frames instead of 4-byte. 1. What is the difference? 2. How do I know if it applies to my application?
  • Set Address Of USB Device In LPC1768
    Hi, i am working with USB Device. Please guide me how can i set the address of device in LPC1768. As i have read about the Set Address command of SIE. it consist of 8 bits. first 7 bits (0-6) have...
  • Running an lpc1768 as a USB device fails
    This question is a follow up to this one: https://community.arm.com/developer/tools-software/tools/f/keil-forum/47193/implementing-a-non-hanging-usb-listener/166340#166340 trying to narrow down the...
  • stack frame with function call in interrupt
    I call a short and easy function out of an timer interrupt. This causes the c51 compiler to push all registers (A, B, DPH, DPL, PSW AR0..AR7) to the stack without any necessarity (they are not changed...
  • USB - Connecting both Host & Device to LPC1768
    I have the MBC1760 eval-board for soft development and working on a new PCB. Suppose, I have both A(host) and B(device) connectors. Their VBUS and GND are handled separately. And I have another GPIO...