// 源码

short sFrame[858*5];

bool Set_PACK32 = true;
bool Set_Entire_Field = true;
int nCount = 0;
int nCount1 = 0;

int main( void )
{
nCount1 = 0;

Set_PLL(14,4);   //  内核时钟:27MHz *14 = 378MHz  378MHz / 4 = 94.5MHz    内核时钟:25MHz *16 = 400MHz  系统时钟：400MHz / 4 = 100MHz

InitPPI0(Set_Entire_Field, Set_PACK32,  PIXEL_PER_LINE, LINES_PER_FRAME);

InitInterrupts_coreA();

EnablePPI0();

while(1)
{
  nCount++;
}


return 0;
}

oid InitInterrupts_coreA(void)
{  


// configure interrupt
*pSIC_IAR0 = *pSIC_IAR0 & 0xffffffff | 0x00000000;
*pSIC_IAR1 = *pSIC_IAR1 & 0xffffffff | 0x00000001; // map DMA0 PPI Interrupt -> IVG8
*pSIC_IAR2 = *pSIC_IAR2 & 0xffffffff | 0x00000000;  
ssync();
register_handler(ik_ivg8, PPI0_RxIsr);  // assign ISR to interrupt vector
ssync();
*pSIC_IMASK=0xffffffff;                        // 不屏蔽也没有中断

ssync();

}

EX_INTERRUPT_HANDLER(PPI0_RxIsr)
{

nCount1++;

}

void InitPPI0(bool entire_field, bool pack32,short pixel, short lines)
{


short transfer_length_bytes = ((pack32) ? 4 : 1);

// configure PPI0 - not enabled yet
*pPPI_CONTROL = (entire_field << 2) | FLD_SEL | (pack32 << 7)| (pack32 << 8);
*pPPI_FRAME = lines;
ssync();

// configure DMA for PPI0 - not enabled yet
*pDMA1_X_COUNT = pixel * sizeof(short) / transfer_length_bytes; // 2 bytes for each pixel, count divided by four if 32-bit DMA transfers are done
*pDMA1_Y_COUNT = 5;
*pDMA1_X_MODIFY = transfer_length_bytes;  
*pDMA1_Y_MODIFY = transfer_length_bytes;
  
*pDMA1_START_ADDR = sFrame;

// 停止模式
*pDMA1_CONFIG = 0x1000 | 0x0000 | DI_EN | DMA2D | (pack32 << 3) | WNR;

ssync();

}

void DisablePPI0(void)
{
    
    // disable transfers
    *pPPI_CONTROL &= ~PORT_EN;
    ssync();
    *pDMA1_CONFIG &= ~DMAEN;
    ssync();
    
}

void EnablePPI0(void)
{

    // enable transfers
    *pDMA1_CONFIG |= DMAEN;
    ssync();
    *pPPI_CONTROL |= PORT_EN;
    ssync();
    
    
}

void Set_PLL(int pmsel,int pssel)
{
int new_PLL_CTL;
*pPLL_DIV = pssel;
asm("ssync;");
new_PLL_CTL = (pmsel & 0x3f) << 9;  
*pSIC_IWR |= 0xffffffff;
if (new_PLL_CTL != *pPLL_CTL)
{
  *pPLL_CTL = new_PLL_CTL;
  asm("ssync;");
  asm("idle;");
}
}

中断屏蔽不要全都打开。

*pSIC_IMASK   ，寄存器名错误。

InitPPI0(Set_Entire_Field, Set_PACK32,  PIXEL_PER_LINE, LINES_PER_FRAME);

看不到这些参数，不知道是否会内存溢出。

*pSIC_IMASK; 编译能过

InitPPI0(1, 1,  858, 525);

我只是设置 *pPPI_FRAME = 525;

*pDMA1_Y_COUNT = 5;   // 读取的数据实际是 sFrame[858*5];

因为sFrame 只是在主函数定义的全局缓存 ,我并没有与物理内存映射起来(没有建相关**.ldf文件，嘿嘿，笨，还不会弄)才导致不能进中断，读取不了数据?

因为之前用的是BF561 和 bf533开发板 不用对引脚复用配置就可以接收视频信号。而bf592 引脚只有64个,在使用PPI模块时，得先配置PORTG端口为PPI外设置功能。才能接收ITU656数据，才会进入中断程序.

赞！