LPC18xx/43xx Power Management Controller example

Detailed Description

Example description
This example demonstrates the power states supported by PMC. The example demonstrates steps to go to low power states & wake up from the states.

UART needs to be setup prior to running the example as the example takes input from the UART console.

Special connection requirements

• Hitex LPC1850EVA-A4-2 and LPC4350EVA-A4-2 boards
  Connect a Serial cable (Straight cable) to the board's X1 (UART0) port and connect the other end to the host PC
  Open TeraTerm, select the COM port corresponding to the Serial Port to which the board is connected, select 115200 as the baud rate, 1 stop bit, no parity and no flow control
  
• Keil MCB1857 and MCB4357 boards
  Connect a Serial cable (Straight cable) to the board�s P11 (UART0/3) port and connect the other end to the host PC
  Open TeraTerm, select the COM port corresponding to the Serial Port to which the board is connected, select 115200 as the baud rate, 1 stop bit, no parity and no flow control
  

Build procedures:
LPC18xx/43xx example quickstart for Keil uVision4
LPC18xx/43xx example quickstart for IAR EWARM
LPC18xx/43xx example quickstart for Code Red Xpresso

Supported boards and board setup:
Hitex 1850 evaluation boards
Hitex 4350 evaluation boards
Keil 1857 evaluation boards
Keil 4357 evaluation boards
NGX 1830 Xplorer boards
NGX 4330 Xplorer boards

Submitting LPCOpen issues:
Community support for LPCOpen

Data Structures
struct	CLK_BASE_STATES

Macros
#define	RTC_ALARM_TIME   5

Functions
static void	PMC_Get_Wakeup_option (uint8_t *Wakeup_rtc)
static void	PMC_Pre_SleepPowerDown (void)
static void	PMC_Post_Wakeup (uint8_t buffer)
static void	PMC_Evrt_Configure (CHIP_EVRT_SRC_T Evrt_Src)
static void	PMC_PwrState_Handler (uint8_t buffer, uint8_t Wake_RTC)
void	EVRT_IRQHandler (void)
	Event router interrupt handler.
int	main (void)
	Main entry point.

Variables
static char	menu []
static char	menu1 []
static char	menu2 [] = "PMC demo example terimnated \r\n"
static char	menu3 [] = "\r\nPress 'C' or 'c' to start demo...\r\n"
static struct CLK_BASE_STATES	InitClkStates []

Macro Definition Documentation

#define RTC_ALARM_TIME   5

RTC Alarm in seconds

Definition at line 80 of file app_pmc_states.c.

Function Documentation

void EVRT_IRQHandler

(

void

)

Event router interrupt handler.

Returns

Nothing

Definition at line 445 of file app_pmc_states.c.

int main

(

void

)

Main entry point.

Main program body.

Returns

Nothing

Definition at line 466 of file app_pmc_states.c.

static void PMC_Evrt_Configure ( CHIP_EVRT_SRC_T  Evrt_Src )

static

Event Router configure function

Definition at line 284 of file app_pmc_states.c.

static void PMC_Get_Wakeup_option ( uint8_t *  Wakeup_rtc )

static

Definition at line 147 of file app_pmc_states.c.

static void PMC_Post_Wakeup ( uint8_t  buffer )

static

Post wake up initialisation function

Definition at line 224 of file app_pmc_states.c.

static void PMC_Pre_SleepPowerDown ( void  )

static

Set IRC as source clock fo all the output clocks & power down before going to 'Deep Sleep'/'Power Down'/'Deep Power Down' modes

Definition at line 178 of file app_pmc_states.c.

static void PMC_PwrState_Handler ( uint8_t  buffer, uint8_t  Wake_RTC  )

static

Power State handler function

Definition at line 308 of file app_pmc_states.c.

Variable Documentation

struct CLK_BASE_STATES InitClkStates[]

static

Initial value:

= {
 {CLK_BASE_SAFE, CLKIN_IRC, true, false},
 {CLK_BASE_APB1, CLKIN_MAINPLL, true, false},
 {CLK_BASE_APB3, CLKIN_MAINPLL, true, false},
 {CLK_BASE_USB0, CLKIN_USBPLL, true, true},





 {CLK_BASE_PHY_TX, CLKIN_ENET_TX, true, false},



 {CLK_BASE_PHY_RX, CLKIN_ENET_RX, true, false},

 {CLK_BASE_SDIO, CLKIN_MAINPLL, true, false},
 {CLK_BASE_SSP0, CLKIN_MAINPLL, true, false},
 {CLK_BASE_SSP1, CLKIN_MAINPLL, true, false},
 {CLK_BASE_UART0, CLKIN_MAINPLL, true, false},
 {CLK_BASE_UART1, CLKIN_MAINPLL, true, false},
 {CLK_BASE_UART2, CLKIN_MAINPLL, true, false},
 {CLK_BASE_UART3, CLKIN_MAINPLL, true, false},
 
 
 
 
 {CLK_BASE_LCD, CLKIN_IDIVC, true, false},
 {CLK_BASE_USB1, CLKIN_IDIVD, true, true},
}

Definition at line 109 of file app_pmc_states.c.

char menu[]

static

Initial value:

=
 "\r\n==========================================================================\r\n"
 "NXP Semiconductors LPC18xx/43xx MCU Power Management Controller example      \r\n"
 "=============================================================================\r\n"
 "Select the power state test to be executed                           \r\n"
 " - Sleep state & Wake up test           : Press '1' to select        \r\n"
 " - Deep Sleep state & Wake up test      : Press '2' to select        \r\n"
 " - Power down state & Wake up test      : Press '3' to select        \r\n"
 " - Deep power down state & Wake up test : Press '4' to select        \r\n"
 " - Exit the demo                        : Press 'X' or 'x' to select \r\n"
 "=============================================================================\r\n"

Definition at line 90 of file app_pmc_states.c.

char menu1[]

static

Initial value:

= "\r\nSelect the Wake up signal                      \r\n"
       " - WAKEUP0 pin : Press 'W' or 'w' to select    \r\n"
       " - RTC Alarm   : Press 'R' or 'r' to select    \r\n"

Definition at line 101 of file app_pmc_states.c.

char menu2[] = "PMC demo example terimnated \r\n"

static

Definition at line 105 of file app_pmc_states.c.

char menu3[] = "\r\nPress 'C' or 'c' to start demo...\r\n"

static

Definition at line 106 of file app_pmc_states.c.