DS90UB935-Q1: OV2310->TI935->TI936->NTK-TI中文支持网

Part Number:DS90UB935-Q1

各位专家，晚上好：

我现在使用的项目数据流图是：

OV2310 CSI-2 –> TI935 –> 同轴 –> TI935 –> CSI-2 –> NTK(SOC)，寄存器设定如下：

TI936：

            {0x01, CMD_I2CFMT_1B1B, {0x03, CMD_TI936}}, // ic reset

              {0x6d, CMD_I2CFMT_1B1B, {0x7c, CMD_TI936}},

              {0x4c, CMD_I2CFMT_1B1B, {0x01, CMD_TI936}}, // select RX0 for RW

              {0x0c, CMD_I2CFMT_1B1B, {0x01, CMD_TI936}}, // enable port0

              {0x58, CMD_I2CFMT_1B1B, {0x5D, CMD_TI936}}, //i2c PASS-THROUGH 该寄存器直接导致I2c是否能通过954透传给953或者sensor

              {0x5c, CMD_I2CFMT_1B1B, {0x30, CMD_TI936}},

              {0x5d, CMD_I2CFMT_1B1B, {0xc0, CMD_TI936}},

              {0x65, CMD_I2CFMT_1B1B, {0xc0, CMD_TI936}},

              {0x20, CMD_I2CFMT_1B1B, {0x20, CMD_TI936}}, //FWD_CTL1 很重要，Forwarding enabled for RX Port 0

              {0x33, CMD_I2CFMT_1B1B, {0x23, CMD_TI936}}, //2 lanes

TI935：

              {0x0E, CMD_I2CFMT_1B1B, {0x10, CMD_TI935}}, // GPIO0 is sensor reset pin

              {0x0D, CMD_I2CFMT_1B1B, {0x00, CMD_TI935}}, // reset low

              {0x0D, CMD_I2CFMT_1B1B, {0x01, CMD_TI935}}, // reset high

              //{0x06, CMD_I2CFMT_1B1B, {0x41, CMD_TI935}}, // CLKOUT_CTRL0 HS_CLK_DIV=4 M=1

              //{0x07, CMD_I2CFMT_1B1B, {0x1b, CMD_TI935}}, // CLKOUT_CTRL1 N=27 clk_out=fc*m/(div*n) fc=25M

              //{0x03, CMD_I2CFMT_1B1B, {0x5a, CMD_TI935}}, // 000: CSI-2 Synchronous Mode

              {0x02, CMD_I2CFMT_1B1B, {0x53, CMD_TI935}}, // General_CFG CSI-2lane continues

              //{0x0E, CMD_I2CFMT_1B1B, {0x0F, CMD_TI935}}, // set input

TI936和TI935为同步模式，使用外部有源晶振25MHz。TI935 的GPIO0给OV2310提供复位。TI935和OV2310原理图如下：

目前情况是：

1、TI936、TI935、OV2310没有I2C报错

2、TI936的pass、lock pin输出高

3、SOC去读取OV2310的chip id 0x300A/0x300B 为0x23、0x11是正确的

我的问题是：

1、SOC没有图像输出

2、有尝试拔出TI935的连接，TI936跑datasheet里面的pattern，SOC没有图像输出

3、正常连接的情况下，TI935的mipi data有波形，但是mipi clk没有波形，稳定输出约200mV电平

4、另外TI935 的GPIO0给OV2310提供复位，重新上电开机，示波器没见有复位波形，上电即为高

请问我要怎么验证这个问题，让SOC能正常出图 ? 这个问题卡住有一周多了，期待您的指点，谢谢！！

? ?：

这设计感觉用的nonsynchronous mode?

Sensor的MCLK没配置？

,

Zhu Zhiqiang：

是同步模式。上图2中的MAGE_MCLK预览的测试点TP12，用示波器量的频率为25MHz。

,

Kailyn Chen：

您好，pattern也没有输出是吗？ pattern 模式下，pass输出什么电平？

如果输出为高，那说明pattern配置没有问题，是不是问题出在Soc这端？

,

Zhu Zhiqiang：

Dear Chen：

pattern使用的是datasheet 7.5.11.4的code，如下：

//#Patgen Fixed Colorbar 1280x720p30 {0x20, CMD_I2CFMT_1B1B, {0x30, CMD_TI936}}, // {0x1F, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, // # CSI_PLL_CTL {0x33, CMD_I2CFMT_1B1B, {0x03, CMD_TI936}}, // # CSI_CTL CSI0 enable {0xB0, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, // # Indirect Pattern Gen Registers {0xB1, CMD_I2CFMT_1B1B, {0x01, CMD_TI936}}, // # PGEN_CTL {0xB2, CMD_I2CFMT_1B1B, {0x01, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x02, CMD_TI936}}, // # PGEN_CFG {0xB2, CMD_I2CFMT_1B1B, {0x33, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x03, CMD_TI936}}, // # PGEN_CSI_DI {0xB2, CMD_I2CFMT_1B1B, {0x24, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x04, CMD_TI936}}, // # PGEN_LINE_SIZE1 {0xB2, CMD_I2CFMT_1B1B, {0x0F, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x05, CMD_TI936}}, // # PGEN_LINE_SIZE0 {0xB2, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x06, CMD_TI936}}, // # PGEN_BAR_SIZE1 {0xB2, CMD_I2CFMT_1B1B, {0x01, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x07, CMD_TI936}}, // # PGEN_BAR_SIZE0 {0xB2, CMD_I2CFMT_1B1B, {0xE0, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x08, CMD_TI936}}, // # PGEN_ACT_LPF1 {0xB2, CMD_I2CFMT_1B1B, {0x02, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x09, CMD_TI936}}, // # PGEN_ACT_LPF0 720 {0xB2, CMD_I2CFMT_1B1B, {0xD0, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0A, CMD_TI936}}, // # PGEN_TOT_LPF1 {0xB2, CMD_I2CFMT_1B1B, {0x04, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0B, CMD_TI936}}, // # PGEN_TOT_LPF0 {0xB2, CMD_I2CFMT_1B1B, {0x1A, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0C, CMD_TI936}}, // # PGEN_LINE_PD1 {0xB2, CMD_I2CFMT_1B1B, {0x0C, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0D, CMD_TI936}}, // # PGEN_LINE_PD0 {0xB2, CMD_I2CFMT_1B1B, {0x67, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0E, CMD_TI936}}, // # PGEN_VBP {0xB2, CMD_I2CFMT_1B1B, {0x21, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0F, CMD_TI936}}, // # PGEN_VFP {0xB2, CMD_I2CFMT_1B1B, {0x0A, CMD_TI936}}, //

目前是断开TI935，TI936往SOC输出pattern，但是没有输出。看了下，pass pin接的LED没有亮，是低电平。是我哪里设置不对吗 ? 谢谢！

,

Kailyn Chen：

您好，我看了下寄存器设置没有问题，把0x33的寄存器0x03改成0x73试试，enable CSI Skew-Calibration。

其次就是间接寄存器的配置，0x01 enable Pattern，0x02配置color bar格式，这些配置上再试试。

,

Zhu Zhiqiang：

Dear Chen：

  0x03改成0x73没有改善，pass pin还是低。如果怀疑TI936和SOC的连接问题，可以测量哪些信号或者查看哪些寄存器来定位吗 ? 谢谢

,

Kailyn Chen：

pass为低，还是936这里的配置问题，如果pass为高，Soc没有显示，可能是连接或者Soc的问题。

您现在是只使用936 去做pattern generation的测试是吗？

因为如果接了935，我们可以通过0x4D这个状态寄存器验证下是哪里报错，比如接收端936这边的输入是否有收到有效的FPD link输入数据？是否满足pass标准等。

另外，就是上述的配置没问题，indirect寄存器0x01和0x02，以及0x10~0X1E也补充上配置试试，这几个是对color bar的配置，是否已经添加上配置试了也不能显示？

,

Zhu Zhiqiang：

Dear chen：

这几天在弄其它事情，所以今天晚上才回复~

1、我现在断开了935和936的连接，936输出pattern到SOC

2、因为我想先验证936和SOC通信OK，确保我的flow是没有问题的，所以断开了935

3、最新的936的pattern 初始化如下，和datasheet一致，后面的0x10~0x1E取默认值。还是不行~

//#Patgen Fixed Colorbar 1280x720p30 {0x20, CMD_I2CFMT_1B1B, {0x30, CMD_TI936}}, // {0x1F, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, // # CSI_PLL_CTL {0x33, CMD_I2CFMT_1B1B, {0x73, CMD_TI936}}, // # CSI_CTL CSI0 enable 0x03 {0xB0, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, // # Indirect Pattern Gen Registers {0xB1, CMD_I2CFMT_1B1B, {0x01, CMD_TI936}}, // # PGEN_CTL {0xB2, CMD_I2CFMT_1B1B, {0x01, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x02, CMD_TI936}}, // # PGEN_CFG {0xB2, CMD_I2CFMT_1B1B, {0x2F, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x03, CMD_TI936}}, // # PGEN_CSI_DI {0xB2, CMD_I2CFMT_1B1B, {0x24, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x04, CMD_TI936}}, // # PGEN_LINE_SIZE1 {0xB2, CMD_I2CFMT_1B1B, {0x0F, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x05, CMD_TI936}}, // # PGEN_LINE_SIZE0 {0xB2, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x06, CMD_TI936}}, // # PGEN_BAR_SIZE1 {0xB2, CMD_I2CFMT_1B1B, {0x01, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x07, CMD_TI936}}, // # PGEN_BAR_SIZE0 {0xB2, CMD_I2CFMT_1B1B, {0xE0, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x08, CMD_TI936}}, // # PGEN_ACT_LPF1 {0xB2, CMD_I2CFMT_1B1B, {0x02, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x09, CMD_TI936}}, // # PGEN_ACT_LPF0 720 {0xB2, CMD_I2CFMT_1B1B, {0xD0, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0A, CMD_TI936}}, // # PGEN_TOT_LPF1 {0xB2, CMD_I2CFMT_1B1B, {0x04, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0B, CMD_TI936}}, // # PGEN_TOT_LPF0 {0xB2, CMD_I2CFMT_1B1B, {0x1A, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0C, CMD_TI936}}, // # PGEN_LINE_PD1 {0xB2, CMD_I2CFMT_1B1B, {0x0C, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0D, CMD_TI936}}, // # PGEN_LINE_PD0 {0xB2, CMD_I2CFMT_1B1B, {0x67, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0E, CMD_TI936}}, // # PGEN_VBP {0xB2, CMD_I2CFMT_1B1B, {0x21, CMD_TI936}}, // {0xB1, CMD_I2CFMT_1B1B, {0x0F, CMD_TI936}}, // # PGEN_VFP {0xB2, CMD_I2CFMT_1B1B, {0x0A, CMD_TI936}}, //

{0xB1, CMD_I2CFMT_1B1B, {0x10, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0xAA, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x11, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x33, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x12, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0xF0, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x13, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x7F, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x14, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x55, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x15, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x16, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x0F, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x17, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x80, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x18, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x19, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x1A, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x0F, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x1B, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x1C, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x1D, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}}, {0xB1, CMD_I2CFMT_1B1B, {0x1E, CMD_TI936}}, {0xB2, CMD_I2CFMT_1B1B, {0x00, CMD_TI936}},

,

Kailyn Chen：

好的，我这边会再看下您的问题。

,

Zhu Zhiqiang：

Hi Chen：

936输出pattern，通过CSI-2和SOC通信，有用示波器量936的mipi clk和mipi data0，波形如下：

看clk的波形，一帧的时间33.3ms，所以是30fps，应该是正常的。不过mipi data的波形全部是LP，没有HS吗 ?

我有了解到间接寄存器 0x03写0x24是输出RGB888，我们SOC默认收RAW12，所以有修改为0x2C。不过此时SOC端仍看不到pattern画面。

{0xB1, CMD_I2CFMT_1B1B, {0x03, CMD_TI936}}, // # PGEN_CSI_DI {0xB2, CMD_I2CFMT_1B1B, {0x2C, CMD_TI936}}, // 0x24

请问还有什么建议吗? 谢谢！

,

Kailyn Chen：

这样配置了，输出能lock和pass都是高电平吗？

,

Zhu Zhiqiang：

有发现断开和935的同轴线，两个pin都是低(LED指示灯没有亮)。和935连上之后，两颗LED都会亮。

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Zhu Zhiqiang：

Hi chen：

我这边尝试过修改936或者935的寄存器，之后读取的935的0x0E和0x53，基本不会变：

0x0E: data[0]=0x0b0x53: data[0]=0x03

请问TI的技术支持有微信或者QQ群吗 ? 这两颗IC确实用得比较少，能找到的资源比较有限。能否帮忙拉一个微信群? 这样沟通效率会比较高！

,

Kailyn Chen：

抱歉，回复晚了。

RAW12格式的话，pattern您试试用下面这个配置可以吗？

Reg:0x20 | Value: 0x30 # Forward Control Disabled for RX0 and RX1Reg:0x1f | Value: 0x00 # CSI PLL : 1.6 GbpsReg:0x33 | Value: 0x73 # CSI enable, Continuous clocks, Lane Count=1, enable skew cal

Reg:0xB0 | Value: 0x00 # Indirect Pattern Gen Registers – Select Pattern BlockReg:0xB1 | Value: 0x01 # PGEN_CTLReg:0xB2 | Value: 0x01Reg:0xB1 | Value: 0x02 # PGEN_CFGReg:0xB2 | Value: 0x33Reg:0xB1 | Value: 0x03 # PGEN_CSI_DIReg:0xB2 | Value: 0x2CReg:0xB1 | Value: 0x04 # PGEN_LINE_SIZE1Reg:0xB2 | Value: 0x06Reg:0xB1 | Value: 0x05 # PGEN_LINE_SIZE0Reg:0xB2 | Value: 0x40Reg:0xB1 | Value: 0x06 # PGEN_BAR_SIZE1Reg:0xB2 | Value: 0x00Reg:0xB1 | Value: 0x07 # PGEN_BAR_SIZE0Reg:0xB2 | Value: 0xC8Reg:0xB1 | Value: 0x08 # PGEN_ACT_LPF1Reg:0xB2 | Value: 0x02Reg:0xB1 | Value: 0x09 # PGEN_ACT_LPF0Reg:0xB2 | Value: 0xD0Reg:0xB1 | Value: 0x0A # PGEN_TOT_LPF1Reg:0xB2 | Value: 0x04Reg:0xB1 | Value: 0x0B # PGEN_TOT_LPF0Reg:0xB2 | Value: 0x1A

REG: 0xB1 0x0C # PGEN_LINE_PD1REG: 0xB2 0x0CREG: 0xB1 0x0D # PGEN_LINE_PD0REG: 0xB2 0x67REG: 0xB1 0x0E # PGEN_VBPREG: 0xB2 0x21REG: 0xB1 0x0F # PGEN_VFPREG: 0xB2 0x0A