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DS90UB936-Q1: mipi结束帧与开始帧信号概率性拉不下去

Part Number: DS90UB936-Q1

您好,Ti;

我在使用DS90UB936-Q1的test pattern输出图像时,发现结束帧信号与开始帧信号 有概率性的 拉不下去.这有可能是什么原因了? 如下是用示波器抓取的异常信号波形:

DS90UB936的寄存器配置如下:


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