Content originally posted in LPCWare by tweber on Wed Nov 14 03:42:33 MST 2012 The test program shows, that the micro was not able to enter the sleep modes. The problem was the connected debugger and a missing power cycle.
Now I have some numbers. The power source is connected to a 3.3 V pin. The current measurement is done after pressing b (Benchmark)
1. Active Mode, Core Freq 12 MHz, PLL0 Disabled, PCLK/4, GPIO+Uart0 Enabled 2. Active Mode, Core Freq 48 MHz, PLL0 Enabled, PCLK/4, GPIO+Uart0 Enabled 3. Active Mode, Core Freq 96 MHz, PLL0 Enabled, PCLK/4, GPIO+Uart0 Enabled 4. Active Mode, Core Freq 120 MHz, PLL0 Enabled, PCLK/4, GPIO+Uart0 Enabled s. Sleep Mode, PCLK/4, GPIO+Uart0 Enabled S. Deep Sleep Mode p. Power-down Mode P. Deep Power-down Mode b. Set Mode (disable UART) after next selection
1 53.7 mA 2 66.9 mA 3 84.3 mA 4 97.3 mA s 50.7 mA S 45.4 mA p 45.0 mA P 27.2 mA