tms320c5505 spi口没有clk信号

你好，

“上图中 clock gate all affected peripherals是何意，关闭还是打开？“

意思是关闭所有你的设置可能会影响到的外设。

CSL:

http://www.ti.com/tool/sprc133

SPI clk没有时钟，检查一下是否设置了PCGCR1[SPICG]。

你好，我也遇到了类似的问题，PCGCR中，只有SYSCLKDIS、TMR0CG、UARTCG这几个位active。其它的都disable。然后复位之后，再打开SPICG。

我的问题是：External Bus Selection Register (EBSR)设置PPMODE为

                                                     1、4 signals of the SPI module有时钟信号且只有cs0有片选信号。

                                                     2、7 signals of the SPI module无时钟信号，但cs0-3有片选信号。

请问：1、这个问题该怎么解决，如何使7 signals of the SPI module下既有时钟信号又有片选信号？

            2、cs0-3是如何实现slave device的选择，其具体控制逻辑是什么？

万分期待您的解答，先谢谢各位！！！

001 Mode 1 (SPI, GPIO, UART, and I2S2). 7 signals of the SPI module, 6 GPIO signals, 4 signals ofthe UART module and 4 signals of the I2S2 module are routed to the 21 external signals of theparallel port.

 你好，

           我现在用的 C5505  SPI  也出现问题了，clock 没信号，请问您当时怎么解决的。谢谢 

#include <stdio.h>
#include <csl_spi.h>
#include <cslr_spi.h>
#include <csl_sysctrl.h>
#include <csl_general.h>
#include <spirom.h>


#define CSL_TEST_FAILED         (1)
#define CSL_TEST_PASSED         (0)

#define	CSL_SPI_BUF_LEN			(64)
#define	SPI_CLK_DIV			(100)	
#define	SPI_FRAME_LENGTH		(1)

Uint16 spiWriteBuff[CSL_SPI_BUF_LEN];
Uint16 spiReadBuff[CSL_SPI_BUF_LEN];
Uint16 byteBuf[1];
Uint16 cmdBuffer[3] = {0, 0, 0};

long delay_i;
extern void spirom_write( Uint32 src, Uint16 dst, Uint32 length );
	CSL_SpiHandle	hSpi;

Int16 spi_sample(void)
{
	Int16 			status = CSL_TEST_FAILED;
	Int16 			result;

	SPI_Config		hwConfig;
	Uint16			looper;
	/*Uint16 			value = 0;
	Uint16 			pageNo = 0x0000;
	Uint16			pollStatus;
	Uint16			delay;
	Uint16			fnCnt;*/
	
	result = SPI_init();
    
	if(CSL_SOK != result)
	{
		status = CSL_TEST_FAILED;
		return (status);
	}
	else
	{
		printf ("SPI Instance Intialize successfully\n");
	}

	hSpi = SPI_open(SPI_CS_NUM_1, SPI_POLLING_MODE);

	if(NULL == hSpi)
	{
		return (CSL_TEST_FAILED);
	}
	else
	{
		printf ("SPI Instance Opened successfully\n");
	}

	/** Set the hardware configuration 							*/
	hwConfig.spiClkDiv	= SPI_CLK_DIV;
	hwConfig.wLen		= SPI_WORD_LENGTH_8;
	hwConfig.frLen		= SPI_FRAME_LENGTH;
	hwConfig.wcEnable	= SPI_WORD_IRQ_ENABLE;
	hwConfig.fcEnable	= SPI_FRAME_IRQ_DISABLE;
	hwConfig.csNum		= SPI_CS_NUM_1;
	hwConfig.dataDelay	= SPI_DATA_DLY_1;
	hwConfig.csPol		= SPI_CSP_ACTIVE_LOW;
	hwConfig.clkPol		= SPI_CLKP_LOW_AT_IDLE;
	hwConfig.clkPh		= SPI_CLK_PH_FALL_EDGE;

	result = SPI_config(hSpi, &hwConfig);

	if(CSL_SOK != result)
	{
		return (CSL_TEST_FAILED);
	}
	else
	{
		printf ("SPI Instance Configured successfully\n");
	}

	
	byteBuf[0] = 0xABCD;
	for(looper = 0; looper < 64; )
	{
		spiWriteBuff[looper] = 0x0011;
		spiWriteBuff[(looper + 1)] = 0x00AB;
		spiReadBuff[looper] = 0x0000;
		spiReadBuff[(looper + 1)] = 0x00CD;
		looper += 2;
	}


	return (status);
}


void main(void)
{
	Int16    status;

    pll_sample();                  //时钟初始化
	status = spi_sample();
    //spirom_init();
      
      
      
      
      while(1)
{
	delay_i = 5000000;
	while(delay_i--); 
	
    SPI_dataTransaction(hSpi ,spiWriteBuff, CSL_SPI_BUF_LEN, SPI_WRITE);
	
}	
      
     
}