📄 bsp.c
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/*
*********************************************************************************************************
* MICIRUM BOARD SUPPORT PACKAGE
*
* (c) Copyright 2003-2006; Micrium, Inc.; Weston, FL
*
* All rights reserved. Protected by international copyright laws.
* Knowledge of the source code may NOT be used to develop a similar product.
* Please help us continue to provide the Embedded community with the finest
* software available. Your honesty is greatly appreciated.
*********************************************************************************************************
*/
/*
*********************************************************************************************************
*
* BOARD SUPPORT PACKAGE
*
* NXP LPC2148
* on the
* Keil MCB2140 Evaluation Board
*
* Filename : bsp.c
* Version : V1.00
* Programmer(s) : JJL
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* INCLUDE FILES
*********************************************************************************************************
*/
#define BSP_GLOBALS
#include <includes.h>
/*
*********************************************************************************************************
* LOCAL DEFINES
*********************************************************************************************************
*/
/* ---------------------- GPIO0 Pins ---------------------- */
#define GPIO0_TXD0 DEF_BIT_00
#define GPIO0_RXD0 DEF_BIT_01
#define GPIO0_TXD1 DEF_BIT_08
#define GPIO0_RXD1 DEF_BIT_09
#define GPIO0_INT1 DEF_BIT_14
#define GPIO0_SCK1 DEF_BIT_17
#define GPIO0_MISO1 DEF_BIT_18
#define GPIO0_MOSI1 DEF_BIT_19
#define GPIO0_SSEL1 DEF_BIT_20
#define GPIO0_AVOUT DEF_BIT_25
#define GPIO0_DPP DEF_BIT_26
#define GPIO0_DPM DEF_BIT_27
#define GPIO0_AVIN DEF_BIT_28
/* ---------------------- GPIO1 Pins ---------------------- */
#define GPIO1_LED1 DEF_BIT_16
#define GPIO1_LED2 DEF_BIT_17
#define GPIO1_LED3 DEF_BIT_18
#define GPIO1_LED4 DEF_BIT_19
#define GPIO1_LED5 DEF_BIT_20
#define GPIO1_LED6 DEF_BIT_21
#define GPIO1_LED7 DEF_BIT_22
#define GPIO1_LED8 DEF_BIT_23
#define GPIO1_LEDS (GPIO1_LED1 | GPIO1_LED2 | GPIO1_LED3 | GPIO1_LED4 | GPIO1_LED5 | GPIO1_LED6 | GPIO1_LED7 | GPIO1_LED8)
/*
*********************************************************************************************************
* LOCAL CONSTANTS
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL DATA TYPES
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL TABLES
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL GLOBAL VARIABLES
*********************************************************************************************************
*/
CPU_INT32U VIC_SpuriousInt;
/*
*********************************************************************************************************
* LOCAL FUNCTION PROTOTYPES
*********************************************************************************************************
*/
static void ADC_Init (void);
static void LED_Init (void);
static void BSP_PLL_Init (void);
static void BSP_IO_Init (void);
static void BSP_MAM_Init (void);
static void Tmr_TickInit (void);
static void VIC_Init (void);
static void VIC_Dummy (void);
static void VIC_DummyWDT (void);
static void VIC_DummyTIMER0(void);
static void VIC_DummyTIMER1(void);
static void VIC_DummyUART0 (void);
static void VIC_DummyUART1 (void);
static void VIC_DummyPWM0 (void);
static void VIC_DummyI2C (void);
static void VIC_DummySPI (void);
static void VIC_DummyRTC (void);
static void VIC_DummyEINT0 (void);
static void VIC_DummyEINT1 (void);
static void VIC_DummyEINT2 (void);
/*
*********************************************************************************************************
* LOCAL CONFIGURATION ERRORS
*********************************************************************************************************
*/
/*
*********************************************************************************************************
*********************************************************************************************************
** GLOBAL FUNCTIONS
*********************************************************************************************************
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* BSP_Init()
*
* Description : Initialize the Board Support Package (BSP).
*
* Argument(s) : none.
*
* Return(s) : none.
*
* Note(s) : (1) This function SHOULD be called before any other BSP function is called.
*********************************************************************************************************
*/
void BSP_Init (void)
{
MEMMAP = 2; /* Remap 64 bytes of int. RAM to 0x00 */
OS_CPU_InitExceptVect();
BSP_PLL_Init(); /* Initialize PLL0 and the VPB Divider Register */
BSP_MAM_Init(); /* Initialize the Memory Acceleration Module */
BSP_IO_Init(); /* Initialize the board's I/Os */
VIC_Init(); /* Initialize the Vectored Interrupt Controller */
LED_Init(); /* Initialize the LED controls */
ADC_Init(); /* Intiialize the ADC control */
Tmr_TickInit(); /* Initialize the uC/OS-II tick interrupt */
}
/*
*********************************************************************************************************
* BSP_CPU_ClkFreq()
*
* Description : Get the CPU clock frequency.
*
* Argument(s) : none.
*
* Return(s) : The CPU clock frequency, in Hz.
*********************************************************************************************************
*/
CPU_INT32U BSP_CPU_ClkFreq (void)
{
CPU_INT32U msel;
CPU_INT32U cpu_clk_freq;
msel = (CPU_INT32U)(PLLCFG & 0x1F);
cpu_clk_freq = CPU_OSC_FREQ * (msel + 1);
return (cpu_clk_freq);
}
/*
*********************************************************************************************************
* BSP_CPU_PclkFreq()
*
* Description : Get the peripheral clock frequency.
*
* Argument(s) : none.
*
* Return(s) : The peripheral clock frequency, in Hz.
*********************************************************************************************************
*/
CPU_INT32U BSP_CPU_PclkFreq (void)
{
CPU_INT32U msel;
CPU_INT32U vpbdiv;
CPU_INT32U clk_freq;
CPU_INT32U pclk_freq;
msel = (CPU_INT32U)(PLLCFG & 0x1F);
clk_freq = CPU_OSC_FREQ * (msel + 1);
vpbdiv = (CPU_INT32U)(VPBDIV & 0x03);
switch (vpbdiv) {
case 0:
pclk_freq = clk_freq / 4;
break;
case 1:
pclk_freq = clk_freq;
break;
case 2:
pclk_freq = clk_freq / 2;
break;
default:
pclk_freq = clk_freq / 4;
break;
}
return (pclk_freq);
}
/*
*********************************************************************************************************
* OS_CPU_ExceptHndlr()
*
* Description : Handle any exceptions.
*
* Argument(s) : except_id ARM exception type:
*
* OS_CPU_ARM_EXCEPT_RESET 0x00
* OS_CPU_ARM_EXCEPT_UNDEF_INSTR 0x01
* OS_CPU_ARM_EXCEPT_SWI 0x02
* OS_CPU_ARM_EXCEPT_PREFETCH_ABORT 0x03
* OS_CPU_ARM_EXCEPT_DATA_ABORT 0x04
* OS_CPU_ARM_EXCEPT_ADDR_ABORT 0x05
* OS_CPU_ARM_EXCEPT_IRQ 0x06
* OS_CPU_ARM_EXCEPT_FIQ 0x07
*
* Return(s) : none.
*
* Caller(s) : OS_CPU_ARM_EXCEPT_HANDLER(), which is declared in os_cpu_a.s.
*********************************************************************************************************
*/
void OS_CPU_ExceptHndlr (CPU_INT32U except_id)
{
CPU_FNCT_VOID pfnct;
if (except_id == OS_CPU_ARM_EXCEPT_IRQ) {
pfnct = (CPU_FNCT_VOID)VICVectAddr; /* Read the interrupt vector from the VIC */
while (pfnct != (CPU_FNCT_VOID)0) { /* Make sure we don't have a NULL pointer */
(*pfnct)(); /* Execute the ISR for the interrupting device */
VICVectAddr = 1; /* Acknowlege the VIC interrupt */
pfnct = (CPU_FNCT_VOID)VICVectAddr; /* Read the interrupt vector from the VIC */
}
} else {
/* Infinite loop on other exceptions. */
/* Should be replaced by other behavior (reboot, etc.) */
while (DEF_TRUE) {
;
}
}
}
/*
*********************************************************************************************************
* BSP_IntDisAll()
*
* Description : Disable ALL interrupts.
*
* Argument(s) : none.
*
* Return(s) : none.
*********************************************************************************************************
*/
void BSP_IntDisAll (void)
{
VICIntEnClear = 0xFFFFFFFFL; /* Disable ALL interrupts */
}
/*
*********************************************************************************************************
*********************************************************************************************************
** PB, LED, AND ADC FUNCTIONS
*********************************************************************************************************
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LED_Init()
*
* Description : Setup the I/O for the LEDs.
*
* Argument(s) : none.
*
* Return(s) : none.
*********************************************************************************************************
*/
void LED_Init (void)
{
LED_Off(0); /* Turn OFF all the LEDs */
}
/*
*********************************************************************************************************
* LED_On()
*
* Description : Turn ON any or all the LEDs on the board.
*
* Argument(s) : led The ID of the LED to control:
*
* 0 turn ON all LEDs on the board
* 1 turn ON LED1
* .
* .
* .
* 8 turn ON LED8
*
* Return(s) : none.
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