NXP LPC32XX

NXP LPC32XX Board Support Package. More...

Modules
	Boot Support
	Boot support.
	Clock Support
	Clock support.
	DMA Support
	DMA support.
	EMC Support
	EMC Support.
	Ethernet Support
	Ethernet support.
	HSU Support
	HSU Support.
	I2C Support
	I2C Support.
	I2S Support
	I2S support.
	Interrupt Support
	LCD Support
	LCD support.
	MMU Support
	MMU support.
	NAND MLC Controller
	NAND MLC Controller.
	Register Definitions
	Register definitions.
	Timer Support
	Timer support.

Files
file	console-config.c
	Console configuration.
file	hsu.c
	High speed UART driver (14-clock).
file	bsp.h
	Global BSP definitions.
file	nand-select.c
	NAND controller selection.
file	rtc-config.c
	RTC configuration.
file	bspidle.c
	bsp_idle_thread() implementation.
file	bspreset.c
	Reset code.
file	bspstart.c
	Startup code.
file	bspstarthooks.c
	Startup code.
file	restart.c
	Restart implementation.
file	system-clocks.c
	System clocks.
file	timer.c
	Benchmark timer support.

Macros
#define	BSP_FEATURE_IRQ_EXTENSION
#define	RTEMS_BSP_NETWORK_DRIVER_ATTACH   lpc_eth_attach_detach
	Standard network driver attach and detach function.
#define	RTEMS_BSP_NETWORK_DRIVER_NAME   "eth0"
	Standard network driver name.
#define	LPC32XX_STANDARD_TIMER   (&lpc32xx.timer_1)
#define	BSP_IDLE_TASK_BODY   bsp_idle_thread
#define	BSP_CONSOLE_UART_BASE   LPC32XX_BASE_UART_5
#define	LPC32XX_DO_STOP_GPDMA
#define	LPC32XX_DO_STOP_ETHERNET
#define	LPC32XX_DO_STOP_USB
#define	LPC32XX_DO_RESTART(addr)

Enumerations
enum	lpc32xx_nand_controller { LPC32XX_NAND_CONTROLLER_NONE , LPC32XX_NAND_CONTROLLER_MLC , LPC32XX_NAND_CONTROLLER_SLC }

Functions
int	lpc_eth_attach_detach (struct rtems_bsdnet_ifconfig *config, int attaching)
	Network driver attach and detach function.
void *	lpc32xx_idle (uintptr_t ignored)
	Optimized idle task. More...
bool	lpc32xx_start_pll_setup (uint32_t hclkpll_ctrl, uint32_t hclkdiv_ctrl, bool force)
uint32_t	lpc32xx_sysclk (void)
uint32_t	lpc32xx_hclkpll_clk (void)
uint32_t	lpc32xx_periph_clk (void)
uint32_t	lpc32xx_hclk (void)
uint32_t	lpc32xx_arm_clk (void)
uint32_t	lpc32xx_ddram_clk (void)
void	lpc32xx_select_nand_controller (lpc32xx_nand_controller nand_controller)
void	bsp_restart (void *addr)
void *	bsp_idle_thread (uintptr_t arg)
	Optimized idle task. More...

Variables
uint32_t	lpc32xx_magic_zero_begin []
	Begin of magic zero area. More...
uint32_t	lpc32xx_magic_zero_end []
	End of magic zero area. More...
uint32_t	lpc32xx_magic_zero_size []
	Size of magic zero area. More...

Detailed Description

NXP LPC32XX Board Support Package.

Macro Definition Documentation

LPC32XX_DO_RESTART

#define LPC32XX_DO_RESTART

(

addr

)

Value:

  do { \
    ARM_SWITCH_REGISTERS; \
    rtems_interrupt_level level; \
    uint32_t ctrl = 0; \
  \
    rtems_interrupt_disable(level); \
    (void) level; /* avoid set but not used warning */ \
  \
    arm_cp15_data_cache_test_and_clean(); \
    arm_cp15_instruction_cache_invalidate(); \
  \
    ctrl = arm_cp15_get_control(); \
    ctrl &= ~(ARM_CP15_CTRL_I | ARM_CP15_CTRL_C | ARM_CP15_CTRL_M); \
    arm_cp15_set_control(ctrl); \
  \
    __asm__ volatile ( \
      ARM_SWITCH_TO_ARM \
      "mov pc, %[addr]\n" \
      ARM_SWITCH_BACK \
      : ARM_SWITCH_OUTPUT \
      : [addr] "r" (addr) \
    ); \
  } while (0)

LPC32XX_DO_STOP_ETHERNET

#define LPC32XX_DO_STOP_ETHERNET

Value:

  do { \
    if ((LPC32XX_MAC_CLK_CTRL & 0x7) == 0x7) { \
      lpc32xx.eth.command = 0x38; \
      lpc32xx.eth.mac1 = 0xcf00; \
      lpc32xx.eth.mac1 = 0; \
      LPC32XX_MAC_CLK_CTRL = 0; \
    } \
  } while (0)

LPC32XX_DO_STOP_GPDMA

#define LPC32XX_DO_STOP_GPDMA

Value:

  do { \
    if ((LPC32XX_DMACLK_CTRL & 0x1) != 0) { \
      if ((lpc32xx.dma.cfg & DMA_CFG_E) != 0) { \
        int i = 0; \
        for (i = 0; i < 8; ++i) { \
          lpc32xx.dma.channels [i].cfg = 0; \
        } \
        lpc32xx.dma.cfg &= ~DMA_CFG_E; \
      } \
      LPC32XX_DMACLK_CTRL = 0; \
    } \
  } while (0)

LPC32XX_DO_STOP_USB

#define LPC32XX_DO_STOP_USB

Value:

  do { \
    if ((LPC32XX_USB_CTRL & 0x010e8000) != 0) { \
      LPC32XX_OTG_CLK_CTRL = 0; \
      LPC32XX_USB_CTRL = 0x80000; \
    } \
  } while (0)

Function Documentation

bsp_idle_thread()

void * bsp_idle_thread

(

uintptr_t

ignored

)

Optimized idle task.

This idle task sets the power mode to idle. This causes the processor clock to be stopped, while on-chip peripherals remain active. Any enabled interrupt from a peripheral or an external interrupt source will cause the processor to resume execution.

To enable the idle task use the following in the system configuration:

#include <bsp.h>
 
#define CONFIGURE_INIT
 
#define CONFIGURE_IDLE_TASK_BODY bsp_idle_thread
 
#include <confdefs.h>

Optimized idle task.

The MSR[POW] bit is set to put the CPU into the low power mode defined in HID0. HID0 is set during starup in start.S.

This idle task sets the power mode to idle. This causes the processor clock to be stopped, while on-chip peripherals remain active. Any enabled interrupt from a peripheral or an external interrupt source will cause the processor to resume execution.

To enable the idle task use the following in the system configuration:

#include <bsp.h>
 
#define CONFIGURE_INIT
 
#define CONFIGURE_IDLE_TASK_BODY bsp_idle_thread
 
#include <confdefs.h>

Optimized idle task.

The MSR[POW] bit is set to put the CPU into the low power mode defined in HID0. HID0 is set during starup in start.S.

lpc32xx_idle()

void * lpc32xx_idle

(

uintptr_t

ignored

)

Optimized idle task.

This idle task sets the power mode to idle. This causes the processor clock to be stopped, while on-chip peripherals remain active. Any enabled interrupt from a peripheral or an external interrupt source will cause the processor to resume execution.

To enable the idle task use the following in the system configuration:

#include <bsp.h>
 
#define CONFIGURE_INIT
 
#define CONFIGURE_IDLE_TASK_BODY lpc32xx_idle
 
#include <confdefs.h>

Variable Documentation

lpc32xx_magic_zero_begin

uint32_t lpc32xx_magic_zero_begin[]

extern

Begin of magic zero area.

A read from this area returns zero. Writes have no effect.

lpc32xx_magic_zero_end

uint32_t lpc32xx_magic_zero_end[]

extern

End of magic zero area.

A read from this area returns zero. Writes have no effect.

lpc32xx_magic_zero_size

uint32_t lpc32xx_magic_zero_size[]

extern

Size of magic zero area.

A read from this area returns zero. Writes have no effect.