h3518+ov97712的问题

本帖最后由 old_ghost_he 于 2016-7-5 17:39 编辑

我设计的板用的是市面上通用的fpc排线的ov9712，使用mpp下的sample_venc测试，出现：
# ./sample_venc 0
please press twice ENTER to exit this sample
[SAMPLE_COMM_VENC_GetVencStreamProc]-920: get venc stream time out, exit thread
[SAMPLE_COMM_VENC_GetVencStreamProc]-920: get venc stream time out, exit thread
program termination abnormally!
的错误，
#  cat /proc/umap/venc

[VENC] Version: [Hi3518_MPP_V1.0.8.1 ], Build Time[Mar 18 2014, 11:52:09]

-----VENC CHN ATTR-------------------------------------------------------------
     NO.   Width  Height  Type Field VIField StreamType  ByFrame   BlockFlag    Sequence  Registered   LeftBytes     LeftFrm   CurPacks  BuffCache

-----VENC STREAM STATE------------------------------------------------------------
     NO.     FreeCnt     BusyCnt     UserCnt     UserGet     UserRls    GetTimes    Interval   FrameRate
显示根本没有数据操作。
按[url]http://www.ebaina.com/bbs/forum.php?mod=viewthread&tid=8610&highlight=get%2Bisp%2Binterrupt[/url]的帖子看了我的/dev 目录下有hi_i2c驱动，我使用i2c_read 上电第一次读取寄存器的值为：(我用0x60和0x61都试过了，是一样的)
# ./i2c_read 0x61 0x0 0xdf
dev_addr:0x61; reg_addr:0x 0; reg_addr_end:0xdf; reg_width: 1; data_width: 1.
0x0 0x3f
0x1 0x40
0x2 0x40
0x3 0x2
0x4 0x8
0x5 0x40
0x6 0x0
0x7 0x0
0x8 0x0
0x9 0x0
0xa 0x97
0xb 0x11
0xc 0x0
0xd 0x1
0xe 0x40
0xf 0x0
0x10 0x35
0x11 0x0
0x12 0x0
0x13 0x85
0x14 0x40
0x15 0x0
0x16 0x3
0x17 0x26
0x18 0xa2
0x19 0x1
0x1a 0xc8
0x1b 0x81
0x1c 0x7f
0x1d 0xa2
0x1e 0x0
0x1f 0x0
0x20 0x0
0x21 0x3
0x22 0x0
0x23 0x0
0x24 0x60
0x25 0x55
0x26 0xd2
0x27 0x0
0x28 0x0
0x29 0x0
0x2a 0x9b
0x2b 0x6
0x2c 0x50
0x2d 0x0
0x2e 0x0
0x2f 0x2
0x30 0x8
0x31 0x20
0x32 0x1
0x33 0x0
0x34 0x0
0x35 0x0
0x36 0x0
0x37 0x6
0x38 0x10
0x39 0x28
0x3a 0x9
0x3b 0x0
0x3c 0x0
0x3d 0x3c
0x3e 0x3
0x3f 0x0
0x40 0x0
0x41 0x82
0x42 0x14
0x43 0xc0
0x44 0x6c
0x45 0x6c
0x46 0x88
0x47 0x87
0x48 0x55
0x49 0xcf
0x4a 0x0
0x4b 0x36
0x4c 0x13
0x4d 0x10
0x4e 0x55
0x4f 0x55
0x50 0x55
0x51 0x55
0x52 0x10
0x53 0x42
0x54 0x30
0x55 0xff
0x56 0x1f
0x57 0x0
0x58 0xc8
0x59 0xa0
0x5a 0x57
0x5b 0x20
0x5c 0x59
0x5d 0x0
0x5e 0xa
0x5f 0x0
0x60 0xd
0x61 0x82
0x62 0x2
0x63 0x0
0x64 0x33
0x65 0x1a
0x66 0xc
0x67 0x2
0x68 0x7
0x69 0x4
0x6a 0x2
0x6b 0x0
0x6c 0x1
0x6d 0x82
0x6e 0xc0
0x6f 0xe0
0x70 0x2
0x71 0x0
0x72 0x60
0x73 0xb0
0x74 0x40
0x75 0xe0
0x76 0xc0
0x77 0xc0
0x78 0xff
0x79 0xff
0x7a 0x10
0x7b 0x0
0x7c 0x0
0x7d 0x0
0x7e 0x0
0x7f 0x0
0x80 0x0
0x81 0x0
0x82 0x0
0x83 0x0
0x84 0x0
0x85 0x0
0x86 0x0
0x87 0x0
0x88 0x0
0x89 0x0
0x8a 0x0
0x8b 0x0
0x8c 0x0
0x8d 0x0
0x8e 0x0
0x8f 0x0
0x90 0x0
0x91 0x0
0x92 0x0
0x93 0x0
0x94 0x0
0x95 0x0
0x96 0xf9
0x97 0x80
0x98 0x0
0x99 0x0
0x9a 0x0
0x9b 0x4
0x9c 0x0
0x9d 0xff
0x9e 0x0
0x9f 0x80
0xa0 0xf1
0xa1 0x6a
0xa2 0x0
0xa3 0x80
0xa4 0x90
0xa5 0x12
0xa6 0x22
0xa7 0xc2
0xa8 0x87
0xa9 0x80
0xaa 0x90
0xab 0x12
0xac 0x22
0xad 0xc2
0xae 0x87
0xaf 0x80
0xb0 0x90
0xb1 0x12
0xb2 0x22
0xb3 0xc2
0xb4 0x87
0xb5 0x0
0xb6 0x7
0xb7 0x0
0xb8 0x4
0xb9 0x8
0xba 0x0
0xbb 0x20
0xbc 0x68
0xbd 0xa0
0xbe 0xc8
0xbf 0x0
0xc0 0x0
0xc1 0x0
0xc2 0x80
0xc3 0x20
0xc4 0xab
0xc5 0xb6
0xc6 0x80
0xc7 0x9d
0xc8 0x0
0xc9 0x80
0xca 0x20
0xcb 0xa6
0xcc 0x40
0xcd 0x0
0xce 0x1
0xcf 0x0
0xd0 0xff
0xd1 0xff
0xd2 0xff
0xd3 0x0
0xd4 0x3
0xd5 0x0
0xd6 0xc
0xd7 0x0
0xd8 0x0
0xd9 0x0
0xda 0x0
0xdb 0x0
0xdc 0x1
0xdd 0x0
0xde 0x0
0xdf 0x0
运行sample_venc后再读值全为0x00或0xff，然后我再运行i2c_write写寄存器值也不能写入：
# ./i2c_write 0x60 0x0 0x3f
dev_addr:0x60; reg_addr:0x 0; reg_value:0x3f; reg_width: 1; data_width: 1.
# ./i2c_read 0x61 0x0 0x2
dev_addr:0x61; reg_addr:0x 0; reg_addr_end:0x 2; reg_width: 1; data_width: 1.
0x0 0x0
0x1 0x0
0x2 0x0
这种问题怎么解决呢？各位大神帮帮忙好吗，谢谢啊！