TCP3d K_1 例程提问

chen xie

Andy，

您好！感谢您在这个帖子为我重新推荐这个K-1的例程。

www.deyisupport.com/.../67635.aspx

但是目前这个例程并没像您说的那样重新申请两次TCP的handle就可以运行两片TCP3d，目前遇到的问题如下：

1. 这个例程中如下代码：

	tTcp3dResInfo.ucTCPId = ucUsedTcpId;
	tTcp3dResInfo.ucInEdmaTpcc = gtTcp3dInstInfo[ucUsedTcpId].ucEdmaCCInst;   /* set the same EDMACC with the TCP3D output channel */
	tTcp3dResInfo.ucInEdmaTc[0] = 0;  /* TC for input channel, set different TC for ping-pong channel */
	tTcp3dResInfo.ucInEdmaTc[1] = 0;
	tTcp3dResInfo.ucOutEdmaTc[0] = 0; /* set the same TC for the in/out channel pair */
	tTcp3dResInfo.ucOutEdmaTc[1] = 0;

为什么输入也要用和输出一样的isntance，为什么注释写的pingpong要不同实际上却给了相同的值，为什么用TC=3就会错？我看了代码确实不能理解，但是我感觉是6670没有tc=3，但是cslr_device.h文件里说有啊。

2. 如下代码：

/*****************************************************************************
 Prototype    : Keystone_TCP3D_PollFree
 Description  : Poll the input EDMA channel IPR bit to check whether the TCP3D is free or busy

 Input        : pTcp3dHdl
                ucLastProcBlockNum:
 Output       : None
 Return Value : return the free TcpID

  History        :
  1.Date         : 2013/10/17
    Author       : Andy
    Modification : Created function

*****************************************************************************/
Int16 Keystone_TCP3D_PollFree(void                  * restrict pTcp3dHdl,
		                      Uint8                            ucLastProcBlockNum)

为什么是检查input channel而不是output channel，这里我理解为link的原因对么？

如果一个core控制一个tcp3d，两个一起运行的时候：

在core1上跑的时候输出的第六个block会全为0，core0工作正常；

在core 1我修改了input的channel号过后，中断置位bit仍然是10 和11，除了下述代码还需修改其他地方么？

	tTcp3dResInfo.ucInEdmaCh[0] = 10;

	tTcp3dResInfo.ucInEdmaCh[1] = 11; （core 0 工作正常）

3. 也就是我最希望能够解决的一个core控制多片TCP3d，使用这个例程多次初始化申请handle依然无法正常工作。

希望TI的工程师团队能帮忙重新检查一下这个代码是不是有上述我的问题，还是我哪里没做对？希望得到帮助。

谢谢Andy！

Xie Chen

八月十二日

11 年多前

0 Andy Yin 11 年多前

TI__Guru 61135 points

1. ping pong可以给不同的TC也可以给相同的TC；如C6670 table4-1 switch fabirc connection所述，只有EDMCC TC0~2可以对TCP3D内部数据进行访问，TC3是不能访问；

2. 函数内部检查的是TCP3D output channel数据是否搬移，只是例程中将TCP3D OUTPUT channel 完成IPR TCC设置为input channel ID，所以你可以注意到代码中在获取ping pong input channel后，根据给ID去check output channel IPR bit，来查询每个通道译码输出是否完成；

在申请使用多个TCP3D时，注意输入资源配置使用不同的TCP ID，输入EDMA channel使用不同的channel，EDMA PaRAM set资源也要不同，每个core配置的set start index不同，即下面的几个参数必须每个TCP使用不同数值。

tTcp3dResInfo.ucTCPId = ucUsedTcpId;
tTcp3dResInfo.ucInEdmaTpcc = gtTcp3dInstInfo[ucUsedTcpId].ucEdmaCCInst; /* set the same EDMACC with the TCP3D output channel */
tTcp3dResInfo.ucInEdmaCh[0] = 10;
tTcp3dResInfo.ucInEdmaCh[1] = 11;
tTcp3dResInfo.uwInPaRAMSetStartIdx = 10;
tTcp3dResInfo.uwOutPaRAMSetStartIdx = 50;

另外注意其中使用到的全局变量必须是私有的，如gtTcp3dIcCfg必须是私有的。

0 chen xie 11 年多前回复 Andy Yin

Expert 1537 points

谢谢Andy，上述说的都对了，我自己没注意到para set，给您添麻烦了。

但是仍然麻烦请测试一下：TCP3d_C.目前这个片只要使用，头两个块肯定就是错的，即使头两个块是 TCP3d_A做的。

比如：TCP3d_A做#1-# 9 TCP3d_C做#10-# 17 TCP3d_C做#18 -# 25 这时候#1 和#2 肯定错；

单独让A、B、A&B跑都没问题，单独跑C、A&C都会出现问题。

（电源打开了的）

/* hardware resource init */
	ucUsedTcpId_A = 0;
	tTcp3dResInfo.ucTCPId = ucUsedTcpId_A;
	tTcp3dResInfo.ucInEdmaTpcc = gtTcp3dInstInfo[ucUsedTcpId_A].ucEdmaCCInst;   /* set the same EDMACC with the TCP3D output channel */
	tTcp3dResInfo.ucInEdmaTc[0] = 0;  /* TC for input channel, set different TC for ping-pong channel */
	tTcp3dResInfo.ucInEdmaTc[1] = 0;
	tTcp3dResInfo.ucOutEdmaTc[0] = 0; /* set the same TC for the in/out channel pair */
	tTcp3dResInfo.ucOutEdmaTc[1] = 0;
	tTcp3dResInfo.ucInEdmaCh[0] = 10;
	tTcp3dResInfo.ucInEdmaCh[1] = 11;
	tTcp3dResInfo.uwInPaRAMSetStartIdx = 10;
	tTcp3dResInfo.uwOutPaRAMSetStartIdx = 50;
    /* common application parameters */
	tTcp3dComAppInfo.ucModeSel = TEST_MODE; /* 1-LTE mode, 3-WCDMA split mode, 2-Wimax double buffer mode */
	tTcp3dComAppInfo.ucStopSel = STOP_SEL; /* 1-CRC stop, 0-max iteration */
	tTcp3dComAppInfo.ucMaxItr = 8;
	tTcp3dComAppInfo.ucSNRVal = 14;

	/* called after cell setup */
    Keystone_TCP3D_Init((void *)&gtTcp3dHdl[ucUsedTcpId_A],
    		            &tTcp3dResInfo,
    		            &tTcp3dComAppInfo,
    		            gtTcp3dIcCfg_A,
    		            TCP3d_A_BLOCK_NUM);

	/* hardware resource init */
	ucUsedTcpId_B = 1;
	tTcp3dResInfo.ucTCPId = ucUsedTcpId_B;
	tTcp3dResInfo.ucInEdmaTpcc = gtTcp3dInstInfo[ucUsedTcpId_B].ucEdmaCCInst;   /* set the same EDMACC with the TCP3D output channel */
	tTcp3dResInfo.ucInEdmaTc[0] = 1;  /* TC for input channel, set different TC for ping-pong channel */
	tTcp3dResInfo.ucInEdmaTc[1] = 1;
	tTcp3dResInfo.ucOutEdmaTc[0] = 1; /* set the same TC for the in/out channel pair */
	tTcp3dResInfo.ucOutEdmaTc[1] = 1;
	tTcp3dResInfo.ucInEdmaCh[0] = 12;
	tTcp3dResInfo.ucInEdmaCh[1] = 13;
	tTcp3dResInfo.uwInPaRAMSetStartIdx = 110;
	tTcp3dResInfo.uwOutPaRAMSetStartIdx = 150;
    /* common application parameters */
	tTcp3dComAppInfo.ucModeSel = TEST_MODE; /* 1-LTE mode, 3-WCDMA split mode, 2-Wimax double buffer mode */
	tTcp3dComAppInfo.ucStopSel = STOP_SEL; /* 1-CRC stop, 0-max iteration */
	tTcp3dComAppInfo.ucMaxItr = 8;
	tTcp3dComAppInfo.ucSNRVal = 14;

	/* called after cell setup */
    Keystone_TCP3D_Init((void *)&gtTcp3dHdl[ucUsedTcpId_B],
    		            &tTcp3dResInfo,
    		            &tTcp3dComAppInfo,
    		            gtTcp3dIcCfg_B,
    		            TCP3d_B_BLOCK_NUM);

	/* hardware resource init */
	ucUsedTcpId_C = 2;
	tTcp3dResInfo.ucTCPId = ucUsedTcpId_C;
	tTcp3dResInfo.ucInEdmaTpcc = gtTcp3dInstInfo[ucUsedTcpId_C].ucEdmaCCInst;   /* set the same EDMACC with the TCP3D output channel */
	tTcp3dResInfo.ucInEdmaTc[0] = 2;  /* TC for input channel, set different TC for ping-pong channel */
	tTcp3dResInfo.ucInEdmaTc[1] = 2;
	tTcp3dResInfo.ucOutEdmaTc[0] = 2; /* set the same TC for the in/out channel pair */
	tTcp3dResInfo.ucOutEdmaTc[1] = 2;
	tTcp3dResInfo.ucInEdmaCh[0] = 14;
	tTcp3dResInfo.ucInEdmaCh[1] = 15;
	tTcp3dResInfo.uwInPaRAMSetStartIdx = 210;
	tTcp3dResInfo.uwOutPaRAMSetStartIdx = 250;
    /* common application parameters */
	tTcp3dComAppInfo.ucModeSel = TEST_MODE; /* 1-LTE mode, 3-WCDMA split mode, 2-Wimax double buffer mode */
	tTcp3dComAppInfo.ucStopSel = STOP_SEL; /* 1-CRC stop, 0-max iteration */
	tTcp3dComAppInfo.ucMaxItr = 8;
	tTcp3dComAppInfo.ucSNRVal = 14;

	/* called after cell setup */
    Keystone_TCP3D_Init((void *)&gtTcp3dHdl[ucUsedTcpId_C],
    		            &tTcp3dResInfo,
    		            &tTcp3dComAppInfo,
    		            gtTcp3dIcCfg_C,
    		            TCP3d_C_BLOCK_NUM);

		Keystone_TCP3D_TTICfg((void *)&gtTcp3dHdl[ucUsedTcpId_A],
							  gtTcp3dBlockInfo_A,
							  TCP3d_A_BLOCK_NUM,
							  1);

//		Keystone_TCP3D_TTICfg((void *)&gtTcp3dHdl[ucUsedTcpId_B],
//							  gtTcp3dBlockInfo_B,
//							  TCP3d_B_BLOCK_NUM,
//							  1);

		Keystone_TCP3D_TTICfg((void *)&gtTcp3dHdl[ucUsedTcpId_C],
							  gtTcp3dBlockInfo_C,
							  TCP3d_C_BLOCK_NUM,
							  1);

		/* get the TCP3D handle according to ucFreeTcpId */
		Keystone_TCP3D_Submit((void *)&gtTcp3dHdl[ucUsedTcpId_A],TCP3d_A_BLOCK_NUM);

		/* get the TCP3D handle according to ucFreeTcpId */
//		Keystone_TCP3D_Submit((void *)&gtTcp3dHdl[ucUsedTcpId_B],TCP3d_B_BLOCK_NUM);

		/* get the TCP3D handle according to ucFreeTcpId */
		Keystone_TCP3D_Submit((void *)&gtTcp3dHdl[ucUsedTcpId_C],TCP3d_C_BLOCK_NUM);

        /* check all UE's decoder status */
//        Keystone_TCP3D_PollFree((void *)&gtTcp3dHdl[ucUsedTcpId_B], TCP3d_B_BLOCK_NUM);
        /* check all UE's decoder status */
        Keystone_TCP3D_PollFree((void *)&gtTcp3dHdl[ucUsedTcpId_C], TCP3d_C_BLOCK_NUM);
        /* check all UE's decoder status */
        Keystone_TCP3D_PollFree((void *)&gtTcp3dHdl[ucUsedTcpId_A], TCP3d_A_BLOCK_NUM);

Xie

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TCP3d K_1 例程提问