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Push Buttons

The five push buttons on the MCB54110 board are:

  • The RESET push button grounds the active-low external reset pin of the LPC54114 microcontroller and is connected to the power-up reset circuit. This resets the microcontroller.
  • The ISP0 push button grounds P0_31 pin (ISP0) on the LPC54114 microcontroller(IC17). Holding down this button during a reset enables the ISP bootloader.
  • The ISP1 push button grounds P0_4 pin on the LPC54114 microcontroller(IC17). Holding down this button during a reset enables ISP flashing via the boot source configured using the Boot Configuration Jumpers.
  • The WAKEUP push button grounds pin P0_24 of the microcontroller forcing a USB wake-up condition. This wakes up the microcontroller out of sleep mode.
  • The LINK_ISP push button grounds P2_7 pin on the CMSIS-DAP debug microcontroller(IC1). Holding down this button during a board power-up enables ISP flashing of the debug microcontroller via the USB_LINK.

MCB54110 Board Buttons

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