imx6 csi 的 test mode 怎么使用？

zw124

我按照手册配置了SENS_CONF，
CSIx_EXT_VSYNC = 0x1 (External VSYNC mode)
CSIx_DATA_WIDTH = 0x1 (8 bits per color)
CSIx_SENS_DATA_FORMAT = 0x0 (Full RGB or YUV444)
CSIx_PACK_TIGHT = 0x0
CSIx_SENS_PRTCL = 0x1 (Non-gated clock sensor timing/data mode)
CSIx_SENS_PIX_CLK_POL = 0x1 Pixel clock is inverted before applied to internal circuitry
CSIx_DATA_POL = 0x0 (Data lines are directly applied to internal circuitry.)
CSIx_HSYNC_POL = 0x0 (HSYNC is directly applied to internal circuitry)
CSIx_VSYNC_POL = 0x0 (VSYNC is directly applied to internal circuitry)
时钟配置的27000000，有图像输出，但是显示不正常，不停滚动，而且是扭曲的
有一下两个warning
[  127.312263] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_5 = 0x00000002
[  127.319697] imx-ipuv3 2400000.ipu: IPU Warning - IPU_INT_STAT_10 = 0x00000002

请教一下 csi的test mode应该怎么正确的配置才行？

我知道答案 目前已有2人回答

阅读全文

小智MM

From the description in RM  37.4.3.3 Test Mode,

CSI Test Mode requires the following CSIx_SENS_CONF settings:

CSIx_EXT_VSYNC = 0x1 (External VSYNC mode)



Means the CSI use external VSYNC to generate the test patten.

So, external input is required.

小智MM

你可以参考一下http://community.nxp.com/docs/DOC-97981