Difference between revisions of "10393 manual"
From ElphelWiki
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==Known problems== | ==Known problems== | ||
* Vertical artifacts in jpegs. Images are ok at 100% quality. Fixed, testing. | * Vertical artifacts in jpegs. Images are ok at 100% quality. Fixed, testing. | ||
| − | * http://192.168.0.8:232x/noexif/mimg - multipart jpeg displays corrupted frames from time to time. | + | * http://192.168.0.8:232x/noexif/mimg - multipart jpeg displays corrupted frames from time to time. Reason: network bandwidth? slow PC? |
* Sometimes on power-on (NAND flash boot) cannot mount the card's rootfs partition. Kernel Panics. Power off/on. Soft "reboot -f" works ok. | * Sometimes on power-on (NAND flash boot) cannot mount the card's rootfs partition. Kernel Panics. Power off/on. Soft "reboot -f" works ok. | ||
* Changing exposure/quality/gains - can corrupt images - needs testing. | * Changing exposure/quality/gains - can corrupt images - needs testing. | ||
Revision as of 17:31, 5 May 2016
Contents
Defaults
IP addr: 192.168.0.8
user / pwd: root / <empty>
- The address is set in the init_elphel393.sh script on the card's FAT32 partition.
Boot
- on power-on boots from NAND flash: u-boot, device tree and kernel.
devicetree has "chosen = ...root=/dev/mmcblk0p2..." - rootfs is on the micro SD card second partition.
Command line access
ssh root@192.168.0.8
Serial console access
- Use microUSB-USB cable to connect to PC - the cable's end should be thin enough otherwise interferes with the micro SD card.
- Terminal: minicom -c on
(setup the device and speed - default settings might just work: /dev/ttyUSB0, 115200 8N1, No for hardware/software flow control)
Get images
channel 1: http://192.168.0.8:2323/noexif/img
channel 2: http://192.168.0.8:2324/noexif/img
channel 3: http://192.168.0.8:2325/noexif/img
channel 4: http://192.168.0.8:2326/noexif/img
Change parameters
- http://192.168.0.8/controls.html - previews and basic parameters:
- Exposure - the values are in the sensor lines.
- WB - r,g,b gains
- Quality - compression quality - individual for compressor but common for the buffer driver - it's better to have the same value for all channels.
- The startup settings are defined int the local/verilog/startup on the micro SD card, FAT32 partition:
... -c write_sensor_i2c all 1 0 0x9009001e (exposure) -c write_sensor_i2c all 1 0 0x9035000a (set all gains to 0xa) -c write_sensor_i2c all 1 0 0x902c000e (blue gain to 0xe) -c write_sensor_i2c all 1 0 0x9009001d (red gain to 0xd) ...
Known problems
- Vertical artifacts in jpegs. Images are ok at 100% quality. Fixed, testing.
- http://192.168.0.8:232x/noexif/mimg - multipart jpeg displays corrupted frames from time to time. Reason: network bandwidth? slow PC?
- Sometimes on power-on (NAND flash boot) cannot mount the card's rootfs partition. Kernel Panics. Power off/on. Soft "reboot -f" works ok.
- Changing exposure/quality/gains - can corrupt images - needs testing.
