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