資源簡介
資源獲取不易,通過別人的代碼更改后在精英板完美運行,開機即可測試。DMA通信。這里我總結了四個步驟:
1、寫SCCB協議,使得OV7670可以和單片機通信
2、初始化OV7670(主要是寄存器配置)
3、配置DMA
4、開始DMA的傳輸,顯示
博客參考:
1、https://blog.csdn.net/sha1996118/article/details/76522387
2、http://www.cnblogs.com/aslmer/p/5965229.html
3、http://www.cnblogs.com/nyqm/p/7955630.html (SCCB通信不正確的原因:沒有開啟時鐘復用)

代碼片段和文件信息
/**************************************************************************//**
?*?@file?????core_cm3.c
?*?@brief????CMSIS?Cortex-M3?Core?Peripheral?Access?layer?Source?File
?*?@version??V1.30
?*?@date?????30.?October?2009
?*
?*?@note
?*?Copyright?(C)?2009?ARM?Limited.?All?rights?reserved.
?*
?*?@par
?*?ARM?Limited?(ARM)?is?supplying?this?software?for?use?with?Cortex-M?
?*?processor?based?microcontrollers.??This?file?can?be?freely?distributed?
?*?within?development?tools?that?are?supporting?such?ARM?based?processors.?
?*
?*?@par
?*?THIS?SOFTWARE?IS?PROVIDED?“AS?IS“.??NO?WARRANTIES?WHETHER?EXPRESS?IMPLIED
?*?OR?STATUTORY?INCLUDING?BUT?NOT?LIMITED?TO?IMPLIED?WARRANTIES?OF
?*?MERCHANTABILITY?AND?FITNESS?FOR?A?PARTICULAR?PURPOSE?APPLY?TO?THIS?SOFTWARE.
?*?ARM?SHALL?NOT?IN?ANY?CIRCUMSTANCES?BE?LIABLE?FOR?SPECIAL?INCIDENTAL?OR
?*?CONSEQUENTIAL?DAMAGES?FOR?ANY?REASON?WHATSOEVER.
?*
?******************************************************************************/
#include?
/*?define?compiler?specific?symbols?*/
#if?defined?(?__CC_ARM???)
??#define?__ASM????????????__asm??????????????????????????????????????/*!??#define?__INLINE?????????__inline???????????????????????????????????/*!
#elif?defined?(?__ICCARM__?)
??#define?__ASM???????????__asm???????????????????????????????????????/*!??#define?__INLINE????????inline??????????????????????????????????????/*!
#elif?defined???(??__GNUC__??)
??#define?__ASM????????????__asm??????????????????????????????????????/*!??#define?__INLINE?????????inline?????????????????????????????????????/*!
#elif?defined???(??__TASKING__??)
??#define?__ASM????????????__asm??????????????????????????????????????/*!??#define?__INLINE?????????inline?????????????????????????????????????/*!
#endif
/*?###################??Compiler?specific?Intrinsics??###########################?*/
#if?defined?(?__CC_ARM???)?/*------------------RealView?Compiler?-----------------*/
/*?ARM?armcc?specific?functions?*/
/**
?*?@brief??Return?the?Process?Stack?Pointer
?*
?*?@return?ProcessStackPointer
?*
?*?Return?the?actual?process?stack?pointer
?*/
__ASM?uint32_t?__get_PSP(void)
{
??mrs?r0?psp
??bx?lr
}
/**
?*?@brief??Set?the?Process?Stack?Pointer
?*
?*?@param??topOfProcStack??Process?Stack?Pointer
?*
?*?Assign?the?value?ProcessStackPointer?to?the?MSP?
?*?(process?stack?pointer)?Cortex?processor?register
?*/
__ASM?void?__set_PSP(uint32_t?topOfProcStack)
{
??msr?psp?r0
??bx?lr
}
/**
?*?@brief??Return?the?Main?Stack?Pointer
?*
?*?@return?Main?Stack?Pointer
?*
?*?Return?the?curren
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????17273??2010-06-07?10:25??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\CORE\core_cm3.c
?????文件??????85714??2011-02-09?14:59??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\CORE\core_cm3.h
?????文件??????15503??2011-03-10?10:52??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\CORE\startup_stm32f10x_hd.s
?????文件??????12765??2011-03-10?10:52??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\CORE\startup_stm32f10x_md.s
?????文件???????3487??2015-05-14?16:03??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\DMA\dma.c
?????文件????????800??2015-05-14?08:51??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\DMA\dma.h
?????文件???????1813??2012-09-13?15:05??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\KEY\key.c
?????文件???????1114??2012-09-13?15:26??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\KEY\key.h
?????文件??????35016??2014-11-30?20:05??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\LCD\FONT.H
?????文件??????83875??2018-04-13?12:50??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\LCD\ILI93xx.c
?????文件???????7660??2018-04-12?17:32??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\LCD\lcd.h
?????文件???????1302??2015-05-11?20:26??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\LED\led.c
?????文件????????638??2012-09-13?09:45??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\LED\led.h
?????文件???????5751??2018-05-23?21:16??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\OV7670\ov7670.c
?????文件???????1056??2015-05-12?16:55??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\OV7670\ov7670.h
?????文件???????7230??2018-05-23?21:15??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\OV7670\ov7670config.h
?????文件???????3712??2018-05-22?17:25??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\OV7670\sccb.c
?????文件???????1054??2012-09-18?17:02??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\OV7670\sccb.h
?????文件???????3901??2015-05-15?23:27??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\PicHandle\PicHandle.c
?????文件????????657??2015-05-15?19:08??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\HARDWARE\PicHandle\PicHandle.h
?????文件????????399??2011-04-23?10:24??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\keilkilll.bat
?????文件???????3947??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\core_cm3.crf
?????文件????????109??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\core_cm3.d
?????文件??????11556??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\core_cm3.o
?????文件?????293161??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\delay.crf
?????文件????????884??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\delay.d
?????文件?????316912??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\delay.o
?????文件?????302209??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\dma.crf
?????文件????????946??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\dma.d
?????文件?????320480??2018-05-22?11:11??stm32-ov7670無fifo(優化)\stm32-ov7670無fifo(優化)\OBJ\dma.o
............此處省略215個文件信息
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