Other Parts Discussed in Thread: DS90UB935-Q1
Dear Sir,
936 mode pin is in mode#4, 935 mode pin is in mode#0
In the case that the above synchronization mode cannot be locked, customer changes the 0X58 register of 936 to 0X5A (936 works in non-synchronous mode). At this time 935 does not change, 935 and 936 can be LOCK, and LOCK is stable.
But we can't read/write front end SENSOR, we use in the STP mode, how to setting the 935/936 ?
The attached file is code and sensor.IMX327LQR-C_TechnicalDatasheet_E_Rev0.2.pdf
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#define I2C_RETRIES 0x0701 /* number of times a device address should
be polled when not acknowledging */
#define I2C_TIMEOUT 0x0702 /* set timeout in units of 10 ms */
/* NOTE: Slave address is 7 or 10 bits, but 10-bit addresses
* are NOT supported! (due to code brokenness)
*/
#define I2C_SLAVE 0x0703 /* Use this slave address */
#define I2C_SLAVE_FORCE 0x0706 /* Use this slave address, even if it is already in use by a driver! */
#define I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */
#define I2C_FUNCS 0x0705 /* Get the adapter functionality mask */
#define I2C_RDWR 0x0707 /* Combined R/W transfer (one STOP only) */
#define I2C_PEC 0x0708 /* != 0 to use PEC with SMBus */
#define I2C_SMBUS 0x0720 /* SMBus transfer */
#define I2C_16BIT_REG 0x0709 /* 16BIT REG WIDTH */
#define I2C_16BIT_DATA 0x070a /* 16BIT DATA WIDTH */
const unsigned int imx327_addr_byte = 2;
const unsigned int imx327_data_byte = 1;
const unsigned char imx327_i2c_addr = 0x34;
const unsigned char imx327_i2c_vir_addr = 0x36;
const unsigned char Ti935_i2c_addr = 0x30; /* I2C Address of Ti935_i2c_addr */
const unsigned char Ti935_i2c_vir_addr = 0x32; /* I2C Address of Ti935_i2c_addr */
const unsigned char Ti936_i2c_addr = 0x60; /* I2C Address of Ti936_i2c_addr */
static int g_fd = 0;
int imx327_write_register(int addr, int data)
{
if (0 > g_fd)
{
return 0;
}
int idx = 0;
int ret;
char buf[8];
if (imx327_addr_byte == 2)
{
buf[idx] = (addr >> 8) & 0xff;
idx++;
buf[idx] = addr & 0xff;
idx++;
}
else
{
//buf[idx] = addr & 0xff;
//idx++;
}
if (imx327_data_byte == 2)
{
//buf[idx] = (data >> 8) & 0xff;
//idx++;
//buf[idx] = data & 0xff;
//idx++;
}
else
{
buf[idx] = data & 0xff;
idx++;
}
ret = write(g_fd, buf, imx327_addr_byte + imx327_data_byte);
if (ret < 0)
{
printf("I2C_WRITE error!\n");
return -1;
}
return 0;
}
int imx327_read_register(int addr, int data)
{
// TODO:
int ret;
int idx = 0;
char buf[8];
char recbuf = 0;
//buf[idx] = addr & 0xff;
//idx++;
if (imx327_addr_byte == 2)
{
buf[idx] = (addr >> 8) & 0xff;
idx++;
buf[idx] = addr & 0xff;
idx++;
}
//send reg address
ret = write(g_fd, buf, 2);
if(ret<0)
{
printf("I2C_WRITE error!\n");
return -1;
}
//get data
ret = read(g_fd, &recbuf, 1);
if(ret<0)
{
printf("I2C_READ error!\n");
return -1;
}
printf("[imx327 Read] addr:%#x data:%#x\n",addr,recbuf);
return 0;
}
int read_register_8bitAddr(int addr, int readlen)
{
// TODO:
int ret;
int idx = 0;
char buf[8];
char recbuf = 0;
buf[idx] = addr & 0xff;
idx++;
//send reg address
ret = write(g_fd, buf, 1);
if(ret<0)
{
printf("I2C_WRITE error!\n");
return -1;
}
//get data
ret = read(g_fd, &recbuf, 1);
if(ret<0)
{
printf("I2C_READ error!\n");
return -1;
}
printf("[Read] addr:%#x data:%#x\n",addr,recbuf);
return 0;
}
int write_register_8bitAddr(int addr, int data)
{
if (0 > g_fd)
{
return 0;
}
int idx = 0;
int ret;
char buf[8];
buf[idx] = addr & 0xff;
idx++;
buf[idx] = data & 0xff;
idx++;
ret = write(g_fd, buf, 1 + 1);
if (ret < 0)
{
printf("I2C_WRITE error!\n");
return -1;
}
printf("[Write] addr:%#x data:%#x\n",addr,data);
return 0;
}
int i2c_init(unsigned char i2c_addr)
{
char acDevFile[16] = {0};
unsigned char u8DevNum;
//if (g_fd >= 0)
//{
// return 0;
//}
int ret;
u8DevNum = 0;//g_aunImx327BusInfo[ViPipe].s8I2cDev;
snprintf(acDevFile, sizeof(acDevFile), "/dev/i2c-%u", u8DevNum);
g_fd = open(acDevFile, O_RDWR, S_IRUSR | S_IWUSR);
if (g_fd < 0)
{
printf("Open /dev/hi_i2c_drv-%u error!\n", u8DevNum);
return -1;
}
ret = ioctl(g_fd, I2C_SLAVE_FORCE, (i2c_addr >> 1));
//ret = ioctl(g_fd, I2C_SLAVE, (i2c_addr >> 1));
if (ret < 0)
{
printf("I2C_SLAVE_FORCE error!\n");
close(g_fd);
g_fd= -1;
return ret;
}
printf("[Init] acDevFile:%s slave:%#x\n",acDevFile,i2c_addr);
return 0;
}
int i2c_exit()
{
if (g_fd >= 0)
{
close(g_fd);
g_fd = -1;
return 0;
}
return -1;
}
#if 0
int Ti_ub936()
{
printf("----------936\n");
i2c_init(Ti936_i2c_addr);
read_register_8bitAddr(0x00,1);//936 i2c��ַ
read_register_8bitAddr(0x6d,1);
read_register_8bitAddr(0x58,1);
//FPD3_PORT_SEL 0x4c
read_register_8bitAddr(0x4c,1);
write_register_8bitAddr(0x4c,0x01);//RxPort 0 enable
//write_register_8bitAddr(0x4c,0x0f);//sample
read_register_8bitAddr(0x4c,1);
//Port_Config
write_register_8bitAddr(0x6d,0x58);
//BCC_CONFIG 0x58
//write_register_8bitAddr(0x58,0x58);
write_register_8bitAddr(0x58,0x7a); //10Mbps non_sync
//write_register_8bitAddr(0x58,0x7d); //25Mbps
//write_register_8bitAddr(0x58,0x7e); //50Mbps sync
//write_register_8bitAddr(0x58,0x7F); //100Mbps
//write_register_8bitAddr(0x58,0xfa); //10Mbps non_sync
//write_register_8bitAddr(0x58,0xfd); //25Mbps
//write_register_8bitAddr(0x58,0xfe); //50Mbps sync
//write_register_8bitAddr(0x58,0xfF); //100Mbps
read_register_8bitAddr(0x58,1);
//935 iic id
write_register_8bitAddr(0x5c,0x31);
read_register_8bitAddr(0x5c,1);
//sensor iic id
write_register_8bitAddr(0x5d, 0x34); //Slave_ID[0],Զ��iic�ĵ�ַ
read_register_8bitAddr(0x5d,1);
write_register_8bitAddr(0x65, 0x35); //Slave_Alias[0]��ӳ������iic��ַ
read_register_8bitAddr(0x65,1);
i2c_exit();
return 0;
}
int Ti_ub935()
{
#if 1
printf("----------935\n");
i2c_init(Ti935_i2c_vir_addr);
read_register_8bitAddr(0x00,1);//935 i2c��ַ
read_register_8bitAddr(0x02,1);//935 MODE_SEL
read_register_8bitAddr(0x03,1);//935 MODE_SEL
read_register_8bitAddr(0x0d,1);//935 LOCAL_GPIO_DATA
read_register_8bitAddr(0x53,1);//935 GPIO_PIN_STS
read_register_8bitAddr(0x0e,1);//935
//write_register_8bitAddr(0x32,0x69);//935 BCC_CONFIG pass auto_ack
//write_register_8bitAddr(0x32,0xe9);//935 BCC_CONFIG pass auto_ack
//write_register_8bitAddr(0x0d,0x10);//935 �ij�Զ��ӳ��936 ��GPIO0����
//write_register_8bitAddr(0x0e,0xF0);//935 GPIO_INPUT_CTRL //�ij����ģʽ
read_register_8bitAddr(0x0e,1);//935
read_register_8bitAddr(0x0d,1);//935
read_register_8bitAddr(0x53,1);//935 GPIO_PIN_STS
//write_register_8bitAddr(0x05,0x1b);
//write_register_8bitAddr(0x06,0x29); //HS_CLK_DIV = 4 M = 9
//write_register_8bitAddr(0x07,0xf2); //N = 0xF2
//write_register_8bitAddr(0x03,0x5a); //��ͬ���ⲿʱ��ģʽ
i2c_exit();
#endif
return 0;
}
#endif
int Ti_ub936()
{
printf("----------936\n");
i2c_init(Ti936_i2c_addr);
write_register_8bitAddr(0x01, 0x03); //reset
write_register_8bitAddr(0x33, 0x23); //Enable CSI, Line2-Line, Continue Clock
write_register_8bitAddr(0x4c, 0x01); // Port Select 0
write_register_8bitAddr(0x20,0x08); // Forward Port Select 0
//write_register_8bitAddr(0x58,0x7a); //10mbps no_sync (can lock)
write_register_8bitAddr(0x58,0x7e); //50mbps sync (can't lock!)
write_register_8bitAddr(0x7c,0x81); //PORT_CONFIG2
write_register_8bitAddr(0x5b,Ti935_i2c_addr); //serid
write_register_8bitAddr(0x5c,Ti935_i2c_vir_addr); //seraliasid
//sensor iic id
write_register_8bitAddr(0x5d, imx327_i2c_addr); //Slave_ID[0]
read_register_8bitAddr(0x5d,1);
write_register_8bitAddr(0x65, imx327_i2c_vir_addr); //Slave_Alias[0]
read_register_8bitAddr(0x65,1);
i2c_exit();
return 0;
}
int Ti_ub935()
{
#if 1
printf("----------935\n");
i2c_init(Ti935_i2c_vir_addr);
read_register_8bitAddr(0x00,1);//935 i2c��ַ
read_register_8bitAddr(0x02,1);//935 MODE_SEL
read_register_8bitAddr(0x03,1);//935 MODE_SEL
read_register_8bitAddr(0x0d,1);//935 LOCAL_GPIO_DATA
read_register_8bitAddr(0x53,1);//935 GPIO_PIN_STS
i2c_exit();
#endif
return 0;
}
int IMX327_init()
{
printf("----------imx327\n");
i2c_init(imx327_i2c_vir_addr);
//imx327_write_register (0x3000, 0x01); /* STANDBY */
imx327_read_register(0x3000, 0x01); /* STANDBY */
i2c_exit();
return 0;
}
int main(int argc, char * * argv)
{
Ti_ub936();
sleep(1);
Ti_ub935();
sleep(1);
IMX327_init();
#if 0
//test
i2c_init(Ti936_i2c_addr);
write_register_8bitAddr(0x33,0x01);
write_register_8bitAddr(0xB0,0x00);
write_register_8bitAddr(0xB1,0x01);
write_register_8bitAddr(0xB2,0x01);
write_register_8bitAddr(0xB1,0x02);
write_register_8bitAddr(0xB2,0x33);
write_register_8bitAddr(0xB1,0x03);
write_register_8bitAddr(0xB2,0x24);
write_register_8bitAddr(0xB1,0x04);
write_register_8bitAddr(0xB2,0x0F);
write_register_8bitAddr(0xB1,0x05);
write_register_8bitAddr(0xB2,0x00);
write_register_8bitAddr(0xB1,0x06);
write_register_8bitAddr(0xB2,0x01);
write_register_8bitAddr(0xB1,0x07);
write_register_8bitAddr(0xB2,0xE0);
write_register_8bitAddr(0xB1,0x08);
write_register_8bitAddr(0xB2,0x02);
write_register_8bitAddr(0xB1,0x09);
write_register_8bitAddr(0xB2,0xD0);
write_register_8bitAddr(0xB1,0x0a);
write_register_8bitAddr(0xB2,0x04);
write_register_8bitAddr(0xB1,0x0b);
write_register_8bitAddr(0xB2,0x1a);
write_register_8bitAddr(0xB1,0x0c);
write_register_8bitAddr(0xB2,0x0c);
write_register_8bitAddr(0xB1,0x0d);
write_register_8bitAddr(0xB2,0x67);
write_register_8bitAddr(0xB1,0x0e);
write_register_8bitAddr(0xB2,0x21);
write_register_8bitAddr(0xB1,0x0f);
write_register_8bitAddr(0xB2,0x0a);
#endif
return 0;
}
