Hi,
Camera (Aptina) MT9V136 BT.656 output connected to DM36x EVM (Imager):
MT9V136 TMS320DM365
DOUT_LSB0 -
DOUT_LSB1 -
DOUT0 VDIN_Y0
DOUT1 VDIN_Y1
DOUT2 VDIN_Y2
DOUT3 VDIN_Y3
DOUT4 VDIN_Y4
DOUT5 VDIN_Y5
DOUT6 VDIN_Y6
DOUT7 VDIN_Y7
PIX_CLK VDIN_PCLK
Camera produced BT.656 interlaced YUV 8bit (PAL) Pixel Clock 27MHz
DM365 ISIF(CCDC) Registers:
SPH 0x00000000
SLV0 0x00000001
SLV1 0x00000001
LNH 0x0000059F (1439 pixels)
LNV 0x0000011F (287 lines)
MODESET 0x00002084 (INPMOD = 10(YCbCr), CCDMD = 1(interlaced), VDPOL = 1(negative))
VDINT0 0x0000011F
VDINT1 0x00000000
VDINT2 0x00000000
REC656IF 0x00000003 (REC656 Interface and Error Correction are enabled)
CCDCFG 0x00000812 (Y8POS = 1(odd), BT656 = 0(8 bit), SWAP = 1, SDRAM PACK = 10(8 bit/pixel))
When I configure MT9V136 camera to produce PAL test pattern, I get an excellent picture with composite output (color bars).
But, when I download to the camera PAL stream setup (PAL preset from Aptina evaluation board), I get nothing (black screen)!
I do not know where is a problem: in DM365 settings or in camera PAL stream configuration.
Many thanks for any possible help!
P.S. Configuration of some of the ISIF registers has caused for me questions:
1. SPH = 0 it is OK? Due to figure 2-3 of Video Processing Front End User's Guide (SPRUFG8C) SPH means some internal delay...
2. SLV0 = SLV1 = 1 is OK? Due to BT.656 blanking intervals (PAL) Field 0 active video starts from line 23, Field 1 active video starts from line 336.
