TLV5638

Liu Yifeng

看了TVL5638的DATAsheet,按照上面指导编了程序，用的是C8051F120单片机，没用SPI口，直接用I/0口输出数据，SCLK是用程序控制的，感觉程序没有问题，也注意了时序问题，但是TLV就是不工作，不知道为什么，跪求解答啊！！！急死了，在做项目，时间很紧，有哪位好心人解答一下！（有时候突然它又工作了，不懂为什么）

tlv5638_danpianji.c

Fullscreen

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
#include <C8051F120.h>                 // SFR declarations
#define SYSCLK             24500000    // Internal oscillator frequency in Hz
unsigned long int tlv_ctrl=0xD000;
unsigned long int tlv_data=0xCBB8;
sbit tlv_cs = P2^0;
sbit tlv_din = P2^1;
sbit tlv_clk = P2^2;                       
void Watchdog_Init (void);
void Oscillator_Init (void);
void Port_Init (void);
void Init_Device (void);
void tlv_input (unsigned long int counts);
void delay(unsigned int i);
void main (void)
{
    tlv_cs=1;
   Init_Device ();                     // Initializes hardware peripherals
    tlv_input (tlv_ctrl);
    delay(20);
    tlv_input (tlv_data);
    while(1);
}
void Watchdog_Init (void)
{
   unsigned char SFRPAGE_save = SFRPAGE; // Save the current SFRPAGE
   SFRPAGE = CONFIG_PAGE;              // Switch to the necessary SFRPAGE
   WDTCN     = 0xDE;                   // Disable the Watchdog Timer
   WDTCN     = 0xAD;
   SFRPAGE = SFRPAGE_save;             // Restore the SFRPAGE
}
void Oscillator_Init (void)
{
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

#include <C8051F120.h>                 // SFR declarations

#define SYSCLK             24500000    // Internal oscillator frequency in Hz

unsigned long int tlv_ctrl=0xD000;
unsigned long int tlv_data=0xCBB8;

sbit tlv_cs = P2^0;
sbit tlv_din = P2^1;
sbit tlv_clk = P2^2;                       

void Watchdog_Init (void);
void Oscillator_Init (void);
void Port_Init (void);
void Init_Device (void);
void tlv_input (unsigned long int counts);

void delay(unsigned int i);

void main (void)
{
	tlv_cs=1;
   Init_Device ();                     // Initializes hardware peripherals
	tlv_input (tlv_ctrl);
	delay(20);
	tlv_input (tlv_data);
	while(1);
}

void Watchdog_Init (void)
{
   unsigned char SFRPAGE_save = SFRPAGE; // Save the current SFRPAGE

   SFRPAGE = CONFIG_PAGE;              // Switch to the necessary SFRPAGE

   WDTCN     = 0xDE;                   // Disable the Watchdog Timer
   WDTCN     = 0xAD;

   SFRPAGE = SFRPAGE_save;             // Restore the SFRPAGE
}

void Oscillator_Init (void)
{
   unsigned char SFRPAGE_save = SFRPAGE; // Save the current SFRPAGE

   SFRPAGE = CONFIG_PAGE;              // Switch to the necessary SFRPAGE

   OSCICN = 0x83;                      // Set the internal oscillator to
                                       // 24.5 MHz

   SFRPAGE = SFRPAGE_save;             // Restore the SFRPAGE
}

void PORT_Init (void)
{
   unsigned char SFRPAGE_save = SFRPAGE; // Save the current SFRPAGE

   SFRPAGE = CONFIG_PAGE;              // Switch to the necessary SFRPAGE
	XBR2=0x40;
   P2MDOUT = 0xff;                     // Make SCK, MOSI, and NSS push-pull

   SFRPAGE = SFRPAGE_save;             // Restore the SFRPAGE
}

void Init_Device (void)
{
   Watchdog_Init ();                   // Disable the Watchdog Timer first
   Oscillator_Init ();
   Port_Init ();
}


void delay(unsigned int i)
{
while(i--);
}

void tlv_input (unsigned long int counts)
{
	tlv_cs=0;delay(1);
	if((counts&0x8000)>>15==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}
	if((counts&0x4000)>>14==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}
	if((counts&0x2000)>>13==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}
	if((counts&0x1000)>>12==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}		
	if((counts&0x0800)>>11==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}		
	if((counts&0x0400)>>10==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}		
	if((counts&0x0200)>>9==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if((counts&0x0100)>>8==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if((counts&0x0080)>>7==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if((counts&0x0040)>>6==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if((counts&0x0020)>>5==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if((counts&0x0010)>>4==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if((counts&0x0008)>>3==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if((counts&0x0004)>>2==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if((counts&0x0002)>>1==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}				
	if(counts&0x0001==0)
		{
			tlv_clk=1;delay(1);
			tlv_din=0;delay(1);
			tlv_clk=0;
		}
	else
		{
			tlv_clk=1;delay(1);
			tlv_din=1;delay(1);
			tlv_clk=0;
		}
	tlv_clk=1;delay(1);
	tlv_cs=1;delay(1);
}

14 年多前