[h=2][/h]الان اون فایلی کدی که فرستادم اگر نگاه کنید یه بخش به اسم target داره که یسری تنظیمات برای کلاک انجام داده .. الان رو کدام کلاک ست شده؟؟؟؟
قسمت ConfigurePLL اگر نگاه کنید این رجیستر مربوط به main oscillator به صورت 0x01 ست شده. میشه کمی از روی این کد منو راهنمایی کنید..ممنونم
/***************************************************************************** * target.c: Target C file for NXP LPC23xx/24xx Family Microprocessors * * Copyright(C) 2006, NXP Semiconductor * All rights reserved. * * History * 2006.07.13 ver 1.00 Prelimnary version, first Release * *****************************************************************************/ #include "LPC23xx.h" #include "type.h" #include "irq.h" #include "target.h" /****************************************************************************** ** Function name: TargetInit ** ** Descriptions: Initialize the target board; it is called in a necessary ** place, change it as needed ** ** parameters: None ** Returned value: None ** ******************************************************************************/ void TargetInit(void) { /* Add your codes here */ return; } /****************************************************************************** ** Function name: GPIOResetInit ** ** Descriptions: Initialize the target board before running the main() ** function; User may change it as needed, but may not ** deleted it. ** ** parameters: None ** Returned value: None ** ******************************************************************************/ void GPIOResetInit( void ) { /* Reset all GPIO pins to default: primary function */ PINSEL0 = 0x00000000; PINSEL1 = 0x00000000; PINSEL2 = 0x00000000; PINSEL3 = 0x00000000; PINSEL4 = 0x00000000; PINSEL5 = 0x00000000; PINSEL6 = 0x00000000; PINSEL7 = 0x00000000; PINSEL8 = 0x00000000; PINSEL9 = 0x00000000; PINSEL10 = 0x00000000; IODIR0 = 0x00000000; IODIR1 = 0x00000000; IOSET0 = 0x00000000; IOSET1 = 0x00000000; FIO0DIR = 0x00000000; FIO1DIR = 0x00000000; FIO2DIR = 0x00000000; FIO3DIR = 0x00000000; FIO4DIR = 0x00000000; FIO0SET = 0x00000000; FIO1SET = 0x00000000; FIO2SET = 0x00000000; FIO3SET = 0x00000000; FIO4SET = 0x00000000; return; } /****************************************************************************** ** Function name: ConfigurePLL ** ** Descriptions: Configure PLL switching to main OSC instead of IRC ** at power up and wake up from power down. ** This routine is used in TargetResetInit() and those ** examples using power down and wake up such as ** USB suspend to resume, ethernet WOL, and power management ** example ** parameters: None ** Returned value: None ** ******************************************************************************/ void ConfigurePLL ( void ) { DWORD MValue, NValue; if ( PLLSTAT & (1 << 25) ) { PLLCON = 1; /* Enable PLL, disconnected */ PLLFEED = 0xaa; PLLFEED = 0x55; } PLLCON = 0; /* Disable PLL, disconnected */ PLLFEED = 0xaa; PLLFEED = 0x55; SCS |= 0x20; /* Enable main OSC */ while( !(SCS & 0x40) ); /* Wait until main OSC is usable */ CLKSRCSEL = 0x1; /* select main OSC, 12MHz, as the PLL clock source */ PLLCFG = PLL_MValue | (PLL_NValue << 16); PLLFEED = 0xaa; PLLFEED = 0x55; PLLCON = 1; /* Enable PLL, disconnected */ PLLFEED = 0xaa; PLLFEED = 0x55; CCLKCFG = CCLKDivValue; /* Set clock divider */ #if USE_USB USBCLKCFG = USBCLKDivValue; /* usbclk = 288 MHz/6 = 48 MHz */ #endif while ( ((PLLSTAT & (1 << 26)) == 0) ); /* Check lock bit status */ MValue = PLLSTAT & 0x00007FFF; NValue = (PLLSTAT & 0x00FF0000) >> 16; while ((MValue != PLL_MValue) && ( NValue != PLL_NValue) ); PLLCON = 3; /* enable and connect */ PLLFEED = 0xaa; PLLFEED = 0x55; while ( ((PLLSTAT & (1 << 25)) == 0) ); /* Check connect bit status */ return; } /****************************************************************************** ** Function name: TargetResetInit ** ** Descriptions: Initialize the target board before running the main() ** function; User may change it as needed, but may not ** deleted it. ** ** parameters: None ** Returned value: None ** ******************************************************************************/ void TargetResetInit(void) { #ifdef __DEBUG_RAM MEMMAP = 0x2; /* remap to internal RAM */ #endif #ifdef __DEBUG_FLASH MEMMAP = 0x1; /* remap to internal flash */ #endif #if USE_USB PCONP |= 0x80000000; /* Turn On USB PCLK */ #endif /* Configure PLL, switch from IRC to Main OSC */ ConfigurePLL(); /* Set system timers for each component */ #if (Fpclk / (Fcclk / 4)) == 1 PCLKSEL0 = 0x00000000; /* PCLK is 1/4 CCLK */ PCLKSEL1 = 0x00000000; #endif #if (Fpclk / (Fcclk / 4)) == 2 PCLKSEL0 = 0xAAAAAAAA; /* PCLK is 1/2 CCLK */ PCLKSEL1 = 0xAAAAAAAA; #endif #if (Fpclk / (Fcclk / 4)) == 4 PCLKSEL0 = 0x55555555; /* PCLK is the same as CCLK */ PCLKSEL1 = 0x55555555; #endif /* Set memory accelerater module*/ MAMCR = 0; #if Fcclk < 20000000 MAMTIM = 1; #else #if Fcclk < 40000000 MAMTIM = 2; #else MAMTIM = 3; #endif #endif MAMCR = 2; GPIOResetInit(); init_VIC(); return; } /****************************************************************************** ** End Of File ******************************************************************************/