LPC1347FBD48 datasheet by NXP Semiconductors

LPC1347FBD48 Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be achieved with the internal oscillator?
  The internal oscillator can be configured to run up to 12 MHz, but the maximum clock frequency that can be achieved depends on the specific configuration and the quality of the external crystal or resonator used. Typically, it can reach up to 10 MHz.
• How do I configure the USB interface to work in device mode?
  To configure the USB interface to work in device mode, you need to set the USB_MODE register to 0x02, enable the USB clock, and configure the USB pins as USB_DP and USB_DM. You also need to implement the USB device stack and handle the USB interrupts.
• Can I use the ADC in sleep mode?
  Yes, the ADC can be used in sleep mode, but it requires the ADC clock to be enabled and the ADC to be configured in the sleep mode. The ADC will wake up the microcontroller when a conversion is complete.
• How do I implement a bootloader using the UART interface?
  To implement a bootloader using the UART interface, you need to configure the UART interface, implement a communication protocol to receive the firmware image, and use the ISP (In-System Programming) commands to program the flash memory.
• What is the minimum voltage required for the microcontroller to operate?
  The minimum voltage required for the microcontroller to operate is 2.4 V, but it is recommended to operate at 3.3 V for optimal performance and to ensure that all peripherals function correctly.