📄 bsp.c
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/*
*********************************************************************************************************
* MICRIUM BOARD SUPPORT SUPPORT
*
* (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 LPC2378
* on the
* IAR LPC2378-SK Evaluation Board
*
* Filename : bsp.c
* Version : V1.00
* Programmer(s) : Brian Nagel
*********************************************************************************************************
*/
#include <includes.h>
/*
*********************************************************************************************************
* #DEFINE CONSTANTS
*********************************************************************************************************
*/
/* GPIO0 Pins */
#define GPIO0_RD1 ((CPU_INT32U)(1 << 0))
#define GPIO0_TD1 ((CPU_INT32U)(1 << 1))
#define GPIO0_TXD0 ((CPU_INT32U)(1 << 2))
#define GPIO0_RXD0 ((CPU_INT32U)(1 << 3))
#define GPIO0_RD2 ((CPU_INT32U)(1 << 4))
#define GPIO0_TD2 ((CPU_INT32U)(1 << 5))
#define GPIO0_SSEL1 ((CPU_INT32U)(1 << 6))
#define GPIO0_SCK1 ((CPU_INT32U)(1 << 7))
#define GPIO0_MISO1 ((CPU_INT32U)(1 << 8))
#define GPIO0_MOSI1 ((CPU_INT32U)(1 << 9))
#define GPIO0_TXD2 ((CPU_INT32U)(1 << 10))
#define GPIO0_RXD2 ((CPU_INT32U)(1 << 11))
#define GPIO0_Z_OUT ((CPU_INT32U)(1 << 12))
#define GPIO0_USB_LINK ((CPU_INT32U)(1 << 13))
#define GPIO0_USB_CONNECT ((CPU_INT32U)(1 << 14))
#define GPIO0_TXD1 ((CPU_INT32U)(1 << 15))
#define GPIO0_RXD1 ((CPU_INT32U)(1 << 16))
#define GPIO0_CP ((CPU_INT32U)(1 << 17))
#define GPIO0_BUT2 ((CPU_INT32U)(1 << 18))
#define GPIO0_MCICLK ((CPU_INT32U)(1 << 19))
#define GPIO0_MCICMD ((CPU_INT32U)(1 << 20))
#define GPIO0_MCIPWR ((CPU_INT32U)(1 << 21))
#define GPIO0_MCIDAT0 ((CPU_INT32U)(1 << 22))
#define GPIO0_Y_OUT ((CPU_INT32U)(1 << 23))
#define GPIO0_X_OUT ((CPU_INT32U)(1 << 24))
#define GPIO0_MIC_IN ((CPU_INT32U)(1 << 25))
#define GPIO0_AOUT ((CPU_INT32U)(1 << 26))
#define GPIO0_SDA0 ((CPU_INT32U)(1 << 27))
#define GPIO0_SCL0 ((CPU_INT32U)(1 << 28))
#define GPIO0_BUT1 ((CPU_INT32U)(1 << 29))
#define GPIO0_PHY_INT ((CPU_INT32U)(1 << 30))
#define GPIO0_U2DP ((CPU_INT32U)(1 << 31))
/* GPIO1 Pins */
#define GPIO1_E_TXD0 ((CPU_INT32U)(1 << 0))
#define GPIO1_E_TXD1 ((CPU_INT32U)(1 << 1))
#define GPIO1_E_TX_EN ((CPU_INT32U)(1 << 4))
#define GPIO1_E_CRS0 ((CPU_INT32U)(1 << 8))
#define GPIO1_E_RXD0 ((CPU_INT32U)(1 << 9))
#define GPIO1_E_RXD1 ((CPU_INT32U)(1 << 10))
#define GPIO1_E_RX_ER ((CPU_INT32U)(1 << 14))
#define GPIO1_E_RX_CLK ((CPU_INT32U)(1 << 15))
#define GPIO1_E_MDC ((CPU_INT32U)(1 << 16))
#define GPIO1_E_MDIO ((CPU_INT32U)(1 << 17))
#define GPIO1_UP ((CPU_INT32U)(1 << 18))
#define GPIO1_DOWN ((CPU_INT32U)(1 << 19))
#define GPIO1_SCK0 ((CPU_INT32U)(1 << 20))
#define GPIO1_SSEL0 ((CPU_INT32U)(1 << 21))
#define GPIO1_RIGHT ((CPU_INT32U)(1 << 22))
#define GPIO1_MISO0 ((CPU_INT32U)(1 << 23))
#define GPIO1_MOSI0 ((CPU_INT32U)(1 << 24))
#define GPIO1_CENTER ((CPU_INT32U)(1 << 25))
#define GPIO1_LCD_BL ((CPU_INT32U)(1 << 26))
#define GPIO1_LEFT ((CPU_INT32U)(1 << 27))
#define GPIO1_G_SEL2 ((CPU_INT32U)(1 << 28))
#define GPIO1_WP ((CPU_INT32U)(1 << 29))
#define GPIO1_VBUS ((CPU_INT32U)(1 << 30))
#define GPIO1_AIN5 ((CPU_INT32U)(1 << 31))
/* GPIO2 Pins */
#define GPIO2_ISP_E ((CPU_INT32U)(1 << 10))
#define GPIO2_MCIDAT1 ((CPU_INT32U)(1 << 11))
#define GPIO2_MCIDAT2 ((CPU_INT32U)(1 << 12))
#define GPIO2_MCIDAT3 ((CPU_INT32U)(1 << 13))
#define GPIO2_LCD_RST ((CPU_INT32U)(1 << 26))
/*
*********************************************************************************************************
* DATA TYPES
*********************************************************************************************************
*/
typedef void (*BSP_FNCT_PTR)(void); /* Pointer to ISR handler function */
/*
*********************************************************************************************************
* VARIABLES
*********************************************************************************************************
*/
CPU_INT32U VIC_SpuriousInt;
/*
*********************************************************************************************************
* 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 LCD_LightInit (void);
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);
/*
******************************************************************************************************************************
******************************************************************************************************************************
** Global Functions
******************************************************************************************************************************
******************************************************************************************************************************
*/
/*
*********************************************************************************************************
* BSP INITIALIZATION
*
* Description : This function should be called by your application code before you make use of any of the
* functions found in this module.
*
* Arguements : None
*
* Returns : None
*********************************************************************************************************
*/
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 */
LCD_LightInit(); /* Initialize the PWM for the LCD backlight */
VIC_Init(); /* Initialize the Vectored Interrupt Controller */
Tmr_TickInit(); /* Initialize the uC/OS-II tick interrupt */
}
/*
*********************************************************************************************************
* Get the CPU Clock Frequency
*
* Description : This function reads CPU registers to determine the CPU clock frequency
*
* Arguements : None
*
* Returns : The CPU Core clock in Hz
*
* Notes : None
*********************************************************************************************************
*/
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_INT08U)(CCLKCFG & 0x0F) + 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);
}
/*
*********************************************************************************************************
* Get a Peripheral Clock Frequency
*
* Description : This function reads CPU registers to determine the the clock frequency for the specified
* peripheral
*
* Arguements : An ID, one of PCLK_??? defined in bsp.c
*
* Returns : 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:
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