📄 frmwrk.c
字号:
/**************************************************************************
* *
* PROJECT : ARM port for UCOS-II *
* *
* MODULE : FRMWRK.c *
* *
* AUTHOR : Michael Anburaj *
* URL : http://geocities.com/michaelanburaj/ *
* EMAIL: michaelanburaj@hotmail.com *
* *
* PROCESSOR : S3c2410x (32 bit ARM920T RISC core from Samsung) *
* *
* IDE : SDT 2.51 & ADS 1.2 *
* *
* DESCRIPTION : *
* This is the Framework module. Creates an operating infrastructure. *
* *
**************************************************************************/
#include "includes.h"
#include "frmwrk.h"
#include "consol.h"
#include "mmu.h"
#include <stdarg.h>
#include <stdio.h>
/* ********************************************************************* */
/* Global definitions */
/* ********************************************************************* */
/* File local definitions */
#define __nSVCStkBase (STK_SADDR+_SVC_STKSIZE)
#define __nSVCStkEnd STK_SADDR
#define __nSVCStkSize _SVC_STKSIZE
#define __nIRQStkBase (STK_SADDR+_SVC_STKSIZE+_UND_STKSIZE+_ABT_STKSIZE+_IRQ_STKSIZE)
#define __nIRQStkEnd (STK_SADDR+_SVC_STKSIZE+_UND_STKSIZE+_ABT_STKSIZE)
#define __nIRQStkSize _IRQ_STKSIZE
/* ********************************************************************* */
/* Local functions */
/*
*********************************************************************************************
* __Haltx
*
* Description: These exception handlers are used to report a particular exception on the
* CONSOL & halt.
*
* Arguments : none.
*
* Return : none.
*
* Note(s) :
*********************************************************************************************
*/
static void __HaltUndef(void)
{
CONSOL_Printf("Undefined instruction exception!!!\n");
while(1);
}
static void __HaltSwi(void)
{
CONSOL_Printf("SWI exception!!!\n");
while(1);
}
static void __HaltPabort()
{
CONSOL_Printf("Pabort exception!!!\n");
while(1);
}
static void __HaltDabort(void)
{
CONSOL_Printf("Dabort exception !!!\n");
while(1);
}
static void __HaltFiq(void)
{
CONSOL_Printf("FIQ exception!!!\n");
while(1);
}
static void __HaltIrq(void)
{
CONSOL_Printf("IRQ exception!!!\n");
while(1);
}
/*
*********************************************************************************************
* __vInitHaltHandlers
*
* Description: This routine hooks all the Halt exception handlers. Exceptions which are to
* be handled by the application can be overwritten with the new handler at the
* appropriate Software hook location.
*
* Arguments : none.
*
* Return : none.
*
* Note(s) :
*********************************************************************************************
*/
static void __vInitHaltHandlers(void)
{
pISR_UNDEF = (unsigned)__HaltUndef;
pISR_SWI = (unsigned)__HaltSwi;
pISR_PABORT= (unsigned)__HaltPabort;
pISR_DABORT= (unsigned)__HaltDabort;
pISR_FIQ = (unsigned)__HaltFiq;
pISR_IRQ = (unsigned)__HaltIrq;
}
/*
*********************************************************************************************
* __vPortInit
*
* Description: This routine sets the default GPIO condition.
*
* Arguments : none.
*
* Return : none.
*
* Note(s) :
*********************************************************************************************
*/
static void __vPortInit(void)
{
//CAUTION:Follow the configuration order for setting the ports.
// 1) setting value(GPnDAT)
// 2) setting control register (GPnCON)
// 3) configure pull-up resistor(GPnUP)
//32bit data bus configuration
//=== PORT A GROUP
//Ports : GPA22 GPA21 GPA20 GPA19 GPA18 GPA17 GPA16 GPA15 GPA14 GPA13 GPA12
//Signal : nFCE nRSTOUT nFRE nFWE ALE CLE nGCS5 nGCS4 nGCS3 nGCS2 nGCS1
//Binary : 1 1 1 , 1 1 1 1 , 1 1 1 1
//Ports : GPA11 GPA10 GPA9 GPA8 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0
//Signal : ADDR26 ADDR25 ADDR24 ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 ADDR18 ADDR17 ADDR16 ADDR0
//Binary : 1 1 1 1 , 1 1 1 1 , 1 1 1 1
rGPACON = 0x7fffff;
//===* PORT B GROUP
//Ports : GPB10 GPB9 GPB8 GPB7 GPB6 GPB5 GPB4 GPB3 GPB2 GPB1 GPB0
//Signal : nXDREQ0 nXDACK0 nXDREQ1 nXDACK1 nSS_KBD nDIS_OFF L3CLOCK L3DATA L3MODE nIrDATXDEN Keyboard
//Setting: INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
//Binary : 00 , 01 00 , 01 00 , 01 01 , 01 01 , 01 01
rGPBCON = 0x055555;
rGPBUP = 0x61f; // The pull up function is disabled GPB[10:0]
//=== PORT C GROUP
//Ports : GPC15 GPC14 GPC13 GPC12 GPC11 GPC10 GPC9 GPC8 GPC7 GPC6 GPC5 GPC4 GPC3 GPC2 GPC1 GPC0
//Signal : VD7 VD6 VD5 VD4 VD3 VD2 VD1 VD0 LCDVF2 LCDVF1 LCDVF0 VM VFRAME VLINE VCLK LEND
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10
rGPCCON = 0xaaaaaaaa;
rGPCUP = 0xffff; // The pull up function is disabled GPC[15:0]
//=== PORT D GROUP
//Ports : GPD15 GPD14 GPD13 GPD12 GPD11 GPD10 GPD9 GPD8 GPD7 GPD6 GPD5 GPD4 GPD3 GPD2 GPD1 GPD0
//Signal : VD23 VD22 VD21 VD20 VD19 VD18 VD17 VD16 VD15 VD14 VD13 VD12 VD11 VD10 VD9 VD8
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,10 10
rGPDCON = 0xaaaaaaaa;
rGPDUP = 0xffff; // The pull up function is disabled GPD[15:0]
//=== PORT E GROUP
//Ports : GPE15 GPE14 GPE13 GPE12 GPE11 GPE10 GPE9 GPE8 GPE7 GPE6 GPE5 GPE4
//Signal : IICSDA IICSCL SPICLK SPIMOSI SPIMISO SDDATA3 SDDATA2 SDDATA1 SDDATA0 SDCMD SDCLK I2SSDO
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,
//-------------------------------------------------------------------------------------------------------
//Ports : GPE3 GPE2 GPE1 GPE0
//Signal : I2SSDI CDCLK I2SSCLK I2SLRCK
//Binary : 10 10 , 10 10
rGPECON = 0xaaaaaaaa;
rGPEUP = 0xffff; // The pull up function is disabled GPE[15:0]
//=== PORT F GROUP
//Ports : GPF7 GPF6 GPF5 GPF4 GPF3 GPF2 GPF1 GPF0
//Signal : nLED_8 nLED_4 nLED_2 nLED_1 nIRQ_PCMCIA EINT2 KBDINT EINT0
//Setting: Output Output Output Output EINT3 EINT2 EINT1 EINT0
//Binary : 01 01 , 01 01 , 10 10 , 10 10
rGPFCON = 0x55aa;
rGPFUP = 0xff; // The pull up function is disabled GPF[7:0]
//=== PORT G GROUP
//Ports : GPG15 GPG14 GPG13 GPG12 GPG11 GPG10 GPG9 GPG8 GPG7 GPG6
//Signal : nYPON YMON nXPON XMON EINT19 DMAMODE1 DMAMODE0 DMASTART KBDSPICLK KBDSPIMOSI
//Setting: nYPON YMON nXPON XMON EINT19 Output Output Output SPICLK1 SPIMOSI1
//Binary : 11 11 , 11 11 , 10 01 , 01 01 , 11 11
//-----------------------------------------------------------------------------------------
//Ports : GPG5 GPG4 GPG3 GPG2 GPG1 GPG0
//Signal : KBDSPIMISO LCD_PWREN EINT11 nSS_SPI IRQ_LAN IRQ_PCMCIA
//Setting: SPIMISO1 LCD_PWRDN EINT11 nSS0 EINT9 EINT8
//Binary : 11 11 , 10 11 , 10 10
rGPGCON = 0xff95ffba;
rGPGUP = 0xffff; // The pull up function is disabled GPG[15:0]
/*
//GPG4 Output Port [9:8] 01 -> LCD_PWREN Enable
rGPGCON = (rGPGCON & 0xfffffcff) | (1<<8);
rGPGDAT = (rGPGDAT & 0xffef) | (1<<4);
*/
//=== PORT H GROUP
//Ports : GPH10 GPH9 GPH8 GPH7 GPH6 GPH5 GPH4 GPH3 GPH2 GPH1 GPH0
//Signal : CLKOUT1 CLKOUT0 UCLK nCTS1 nRTS1 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
//Binary : 10 , 10 10 , 11 11 , 10 10 , 10 10 , 10 10
rGPHCON = 0x2afaaa;
rGPHUP = 0x7ff; // The pull up function is disabled GPH[10:0]
//External interrupt will be falling edge triggered.
rEXTINT0 = 0x22222222; // EINT[7:0]
rEXTINT1 = 0x22222222; // EINT[15:8]
rEXTINT2 = 0x22222222; // EINT[23:16]
}
/*
*********************************************************************************************
* __vChangeMPllValue
*
* Description: This routine sets the MPLL value.
*
* Arguments : none.
*
* Return : none.
*
* Note(s) :
*********************************************************************************************
*/
static void __vChangeMPllValue(int wMdiv, int wPdiv, int wSdiv)
{
rMPLLCON = (wMdiv<<12) | (wPdiv<<4) | wSdiv;
}
/*
*********************************************************************************************
* __vChangeClockDivider
*
* Description: This routine sets the HCLK and PCLK.
*
* Arguments : none.
*
* Return : none.
*
* Note(s) :
*********************************************************************************************
*/
static void __vChangeClockDivider(int wHdivn, int wPdivn)
{
// wHdivn,wPdivn FCLK:HCLK:PCLK
// 0,0 1:1:1
// 0,1 1:1:2
// 1,0 1:2:2
// 1,1 1:2:4
rCLKDIVN = (wHdivn<<1) | wPdivn;
if(wHdivn)
MMU_SetAsyncBusMode();
else
MMU_SetFastBusMode();
}
/* ********************************************************************* */
/* Global functions */
/*
*********************************************************************************************
* FRMWRK_vRamTest
*
* Description: This routine is used do RAM test.
*
* Arguments : pbID - Test identification string.
* wSAddr - RAM starting address.
* wEAddr - RAM end address.
*
* Return : none.
*
* Note(s) : Do not test the following areas using this routine:
* 1. Stack
* 2. Software vector table
* 3. C Variables (RW & ZI)
*********************************************************************************************
*/
void FRMWRK_vRamTest(U8 *pbID,U32 wSAddr,U32 wEAddr)
{
U32 wI,wJ;
U8 bError=0;
CONSOL_Printf("\n%s(%08xh-%08xh):WR",pbID,wSAddr,wEAddr);
for(wI=wSAddr;wI<wEAddr;wI+=4)
{
*((volatile unsigned *)wI)=wI;
}
CONSOL_Printf("\b\bRD");
for(wI=wSAddr;wI<wEAddr;wI+=4)
{
wJ=*((volatile unsigned *)wI);
if(wJ!=wI)bError=1;
}
if(bError==0)CONSOL_Printf("\b\bO.K.\n");
else CONSOL_Printf("\b\bFAIL\n");
}
/*
*********************************************************************************************
* C_vMain
*
* Description: This is the main C entry function.
*
* Arguments : none.
*
* Return : none.
*
* Note(s) :
*********************************************************************************************
*/
void C_vMain(void)
{
__vChangeClockDivider(1,1); // 1:2:4
__vChangeMPllValue(0xa1,0x3,0x1); // FCLK=202.8MHz
rINTMOD = 0x0; //All=IRQ mode
rINTMSK = BIT_ALLMSK; //All interrupt is masked.
rINTSUBMSK = BIT_SUB_ALLMSK; //All sub-interrupt is masked. <- April 01, 2002 SOP
__vInitHaltHandlers();
__vPortInit();
CONSOL_Select(__nConsolPort);
CONSOL_Init(__nConsolBaud);
#ifdef MMU_enabled
MMU_Init();
#endif
#ifdef ADS10
__rt_lib_init(); //for ADS 1.0
#endif
DelayLoop(0);
APP_vMain();
CONSOL_Printf("APP has ended...\n");
}
/**************************************************************************/
void DelayLoop(int time)
{
// time=0: adjust the Delay function by WatchDog timer.
// time>0: the number of loop time
// resolution of time is 100us.
static int delayLoopCount = FCLK/10000/10;
int i,adjust=0;
if(time==0)
{
time = 200;
adjust = 1;
delayLoopCount = 400;
//PCLK/1M,Watch-dog disable,1/64,interrupt disable,reset disable
rWTCON = ((PCLK/1000000-1)<<8)|(2<<3);
rWTDAT = 0xffff; //for first update
rWTCNT = 0xffff; //resolution=64us @any PCLK
rWTCON = ((PCLK/1000000-1)<<8)|(2<<3)|(1<<5); //Watch-dog timer start
}
for(;time>0;time--)
for(i=0;i<delayLoopCount;i++);
if(adjust==1)
{
rWTCON = ((PCLK/1000000-1)<<8)|(2<<3); //Watch-dog timer stop
i = 0xffff - rWTCNT; //1count->64us, 200*400 cycle runtime = 64*i us
delayLoopCount = 8000000/(i*64); //200*400:64*i=1*x:100 -> x=80000*100/(64*i)
}
}
/* ********************************************************************* */
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -