BOD.rar_brownout_lpc177x_reset

The GPIO project is a simple program for the NXP 'LPC1768' microcontroller using Keil 'MCB1700' evaluation board, and demonstrating the usage of the BOD. LEDs P2.2-2.6 will continously blink while in active mode. During stage-1 BOD (Vdd(reg)(3v3) typically <= 2.2V) LED connected to P1.31 will blink rapidly. This indicates that the BOD interrupt handler is being executed. During state-2 BOD (Vdd(reg)(3v3) typically <= 1.85V) The BODR bit in the RSID register is set. Once Vdd(reg)(3V3) has recovered from brownout, the LED connected to P1.29 is set. To test this project, a variable external power supply is required. It is attached onto the MCB1700's VDDREG jumper. Example functionality: - Clock Settings: - XTAL = 12 MHz - PLL0 = 288 MHz - CCLK = 72 MHz