?? bsp.c
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/*
*********************************************************************************************************
* MICRIUM BOARD SUPPORT SUPPORT
*
* (c) Copyright 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 LPC2378
* on the
* Keil MCB2300 Evaluation Board
*
* Filename : bsp.c
* Version : V1.00
* Programmer(s) : EFS
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* INCLUDE FILES
*********************************************************************************************************
*/
#define BSP_GLOBALS
#include <includes.h>
/*
*********************************************************************************************************
* LOCAL DEFINES
*********************************************************************************************************
*/
#define HW_REV_0 0 /* LCD E bit is pin 30 for early MCB2300 revisions */
/* For later hardware revisions, define to 0, pin 31. */
/* ---------------------- GPIO0 Pins ---------------------- */
#define GPIO0_CAN_RX1 DEF_BIT_00
#define GPIO0_CAN_TX1 DEF_BIT_01
#define GPIO0_TXD0 DEF_BIT_02
#define GPIO0_RXD0 DEF_BIT_03
#define GPIO0_CAN_RX2 DEF_BIT_04
#define GPIO0_CAN_TX2 DEF_BIT_05
#define GPIO0_TXD1 DEF_BIT_15
#define GPIO0_RXD1 DEF_BIT_16
#define GPIO0_MCICLK DEF_BIT_19
#define GPIO0_MCICMD DEF_BIT_20
#define GPIO0_MCIDAT0 DEF_BIT_22
#define GPIO0_POT DEF_BIT_23
#define GPIO0_SPEAKER DEF_BIT_26
/* ---------------------- GPIO1 Pins ---------------------- */
#define GPIO1_E_TXD0 DEF_BIT_00
#define GPIO1_E_TXD1 DEF_BIT_01
#define GPIO1_E_TX_EN DEF_BIT_04
#define GPIO1_E_CRS0 DEF_BIT_08
#define GPIO1_E_RXD0 DEF_BIT_09
#define GPIO1_E_RXD1 DEF_BIT_10
#define GPIO1_E_RX_ER DEF_BIT_14
#define GPIO1_E_RX_CLK DEF_BIT_15
#define GPIO1_E_MDC DEF_BIT_16
#define GPIO1_E_MDIO DEF_BIT_17
#define GPIO1_LCD_DB4 DEF_BIT_24
#define GPIO1_LCD_DB5 DEF_BIT_25
#define GPIO1_LCD_DB6 DEF_BIT_26
#define GPIO1_LCD_DB7 DEF_BIT_27
#define GPIO1_LCD_RS DEF_BIT_28
#define GPIO1_LCD_RW DEF_BIT_29
#if HW_REV_0
#define GPIO1_LCD_E DEF_BIT_30
#else
#define GPIO1_LCD_E DEF_BIT_31
#endif
/* ---------------------- GPIO2 Pins ---------------------- */
#define GPIO2_LED0 DEF_BIT_00
#define GPIO2_LED1 DEF_BIT_01
#define GPIO2_LED2 DEF_BIT_02
#define GPIO2_LED3 DEF_BIT_03
#define GPIO2_LED4 DEF_BIT_04
#define GPIO2_LED5 DEF_BIT_05
#define GPIO2_LED6 DEF_BIT_06
#define GPIO2_LED7 DEF_BIT_07
#define GPIO2_PB1 DEF_BIT_10
#define GPIO2_MCIDAT1 DEF_BIT_11
#define GPIO2_MCIDAT2 DEF_BIT_12
#define GPIO2_MCIDAT3 DEF_BIT_13
/*
*********************************************************************************************************
* LOCAL CONSTANTS
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL DATA TYPES
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL TABLES
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* LOCAL GLOBAL VARIABLES
*********************************************************************************************************
*/
CPU_INT32U VIC_SpuriousInt;
/*
*********************************************************************************************************
* LOCAL FUNCTION PROTOTYPES
*********************************************************************************************************
*/
static void PLL_Init (void);
static void MAM_Init (void);
static void GPIO_Init (void);
static void VIC_Init (void);
static void ADC_Init (void);
static void LED_Init (void);
#ifdef DISP_MODULE_PRESENT
static void DispE_High (void);
static void DispE_Low (void);
static void DispRW_High (void);
static void DispRW_Low (void);
#endif
static void Tmr_TickInit (void);
static void VIC_Dummy (void); /* Prototypes for dummy interrupt handlers */
static void VIC_DummyWDT (void);
static void VIC_DummySW (void);
static void VIC_DummyDEBUGRX (void);
static void VIC_DummyDEBUGTX (void);
static void VIC_DummyTIMER0 (void);
static void VIC_DummyTIMER1 (void);
static void VIC_DummyUART0 (void);
static void VIC_DummyUART1 (void);
static void VIC_DummyPWM01 (void);
static void VIC_DummyI2C0 (void);
static void VIC_DummySPI (void);
static void VIC_DummySSP1 (void);
static void VIC_DummyPLL (void);
static void VIC_DummyRTC (void);
static void VIC_DummyEINT0 (void);
static void VIC_DummyEINT1 (void);
static void VIC_DummyEINT2 (void);
static void VIC_DummyEINT3 (void);
static void VIC_DummyAD0 (void);
static void VIC_DummyI2C1 (void);
static void VIC_DummyBOD (void);
static void VIC_DummyETHERNET(void);
static void VIC_DummyUSB (void);
static void VIC_DummyCAN01 (void);
static void VIC_DummyMMC (void);
static void VIC_DummyGP_DMA (void);
static void VIC_DummyTIMER2 (void);
static void VIC_DummyTIMER3 (void);
static void VIC_DummyUART2 (void);
static void VIC_DummyUART3 (void);
static void VIC_DummyI2C2 (void);
static void VIC_DummyI2S (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)
{
PLL_Init(); /* Initialize the PLL */
MAM_Init(); /* Initialize the Memory Acceleration Module */
GPIO_Init(); /* Initialize the board's I/Os */
ADC_Init(); /* Initialize the board's ADC */
VIC_Init(); /* Initialize the Vectored Interrupt Controller */
LED_Init(); /* Initialize the I/Os for the LED controls */
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 nsel;
CPU_INT32U fin;
CPU_INT32U pll_clk_feq; /* When the PLL is enabled, this is Fcco */
CPU_INT32U clk_div;
CPU_INT32U clk_freq;
switch (CLKSRCSEL & 0x03) { /* Determine the current clock source */
case 0:
fin = IRC_OSC_FRQ;
break;
case 1:
fin = MAIN_OSC_FRQ;
break;
case 2:
fin = RTC_OSC_FRQ;
break;
default:
fin = IRC_OSC_FRQ;
break;
}
if ((PLLSTAT & (1 << 25)) > 0) { /* If the PLL is currently enabled and connected */
msel = (CPU_INT32U)(PLLSTAT & 0x3FFF) + 1; /* Obtain the PLL multiplier */
nsel = (CPU_INT32U)((PLLSTAT >> 16) & 0x0F) + 1; /* Obtain the PLL divider */
pll_clk_feq = (2 * msel * (fin / nsel)); /* Compute the PLL output frequency */
} else {
pll_clk_feq = (fin); /* The PLL is bypassed */
}
clk_div = (CPU_INT32U)(CCLKCFG & 0xFF) + 1; /* Obtain the CPU core clock divider */
clk_freq = (CPU_INT32U)(pll_clk_feq / clk_div); /* Compute the ARM Core clock frequency */
return (clk_freq);
}
/*
*********************************************************************************************************
* BSP_CPU_PclkFreq()
*
* Description : Get the peripheral clock frequency for a specific peripheral.
*
* Argument(s) : pclk The peripheral clock ID, one of PCLK_??? defined in bsp.h.
*
* Return(s) : The peripheral's clock in Hz
*********************************************************************************************************
*/
CPU_INT32U BSP_CPU_PclkFreq (CPU_INT08U pclk)
{
CPU_INT32U clk_freq;
CPU_INT32U selection;
clk_freq = BSP_CPU_ClkFreq();
switch (pclk) {
case PCLK_WDT:
case PCLK_TIMER0:
case PCLK_TIMER1:
case PCLK_UART0:
case PCLK_UART1:
case PCLK_PWM0:
case PCLK_PWM1:
case PCLK_I2C0:
case PCLK_SPI:
case PCLK_RTC:
case PCLK_SSP1:
case PCLK_DAC:
case PCLK_ADC:
case PCLK_CAN1:
case PCLK_CAN2:
case PCLK_ACF:
selection = ((PCLKSEL0 >> (pclk * 2)) & 0x03);
if (selection == 0) {
return (clk_freq / 4);
} else if (selection == 1) {
return (clk_freq);
} else if (selection == 2) {
return (clk_freq / 2);
} else {
return (clk_freq / 8);
}
case PCLK_BAT_RAM:
case PCLK_GPIO:
case PCLK_PCB:
case PCLK_I2C1:
case PCLK_SSP0:
case PCLK_TIMER2:
case PCLK_TIMER3:
case PCLK_UART2:
case PCLK_UART3:
case PCLK_I2C2:
case PCLK_MCI:
case PCLK_SYSCON:
selection = ((PCLKSEL1 >> ((pclk - 16) * 2)) & 0x03);
if (selection == 0) {
return (clk_freq / 4);
} else if (selection == 1) {
return (clk_freq);
} else if (selection == 2) {
return (clk_freq / 2);
} else {
return (clk_freq / 8);
}
default:
return (0);
}
}
/*
*********************************************************************************************************
* 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
*
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