Camera module Trigger Mode manual - Revision history

Admin: /* Hardware Trigger */

2021-03-22T12:41:09Z

Hardware Trigger

Xumm: /* Delay in trigger mode */

2020-10-25T11:58:52Z

Delay in trigger mode

Xumm: /* Exposure time and Transmission time in Trigger mode */

2020-10-25T09:11:18Z

Exposure time and Transmission time in Trigger mode

Xumm: /* Camera Trigger Mode User Manual */

2020-07-23T07:38:02Z

Camera Trigger Mode User Manual

Ezcam: /* Hardware Trigger */

2020-06-19T07:59:55Z

Hardware Trigger

Ezcam at 07:47, 19 June 2020

2020-06-19T07:47:58Z

Ezcam at 07:45, 19 June 2020

2020-06-19T07:45:39Z

Ezcam: /* Applicable Product models */

2020-06-19T07:43:42Z

Applicable Product models

Ezcam: /* Delay in trigger mode */

2020-06-19T07:37:13Z

Delay in trigger mode

Ezcam: /* Delay in trigger mode */

2020-06-19T07:29:22Z

Delay in trigger mode

@@ Line 34: / Line 34: @@
 ===Exposure control and maximum frame rate in Trigger mode===
 ====Configuration of exposure and gain in Trigger mode====
-In trigger mode, it is recommended that users use manual exposure. Of course, the automatic exposure mode can also be used,
+In trigger mode, it is recommended that users use '''direct manual exposure'''. Of course, the automatic exposure mode can also be used,
 but because the AE algorithm needs to go through some frames  to converge, the exposure effect of the first few frames will not be good.
@@ Line 40: / Line 40: @@
 '''''expmode'''''：exposure mode setting
-'''''metime'''''：manual exposure time
+'''''dmetime'''''：direct manual exposure time
-'''''meagain'''''：manual analog gain
+'''''dmeagain'''''：direct manual analog gain
-'''''medgain'''''：manual digital gain
+'''''dmedgain'''''：direct manual digital gain
 You can use the ''expostate'' instruction to read out the current exposure time and gain value in automatic mode as a reference.

@@ Line 109: / Line 109: @@
 '''''T<sub>total</sub> = tgdly + T<sub>exp +</sub> T<sub>trans +</sub>T<sub>isp+</sub>T<sub>mipi</sub>'''''
-'''''T<sub>total</sub>''''' ：the total trigger delay is the time from the trigger signal to the complete image output through the MIPI signal.
+'''''T<sub>total</sub>''''' ：the total trigger delay is the time from the trigger signal to the complete image output through the MIPI signal. The following table is obtained by hardware measurement.
 '''''tgdly'''''：trigger delay time, the following measurements are configured to 0. ''tgdly'' is valid only for Hardware trigger mode.

@@ Line 56: / Line 56: @@
 '''''T<sub>exp</sub>'''''：exposure time
-'''''T<sub>trans</sub>'''''：transmission time of one frame
+'''''T<sub>trans</sub>'''''：transmission time of one frame（from sensor to isp chip）
 Accordingly, if the minimum trigger interval is known, the maximum allowable exposure time is:
@@ Line 76: / Line 76: @@
 ''expmode'' is manual : set exposure time via ''metime''.
-*'''''T<sub>trans</sub>''：transmission time of one frame'''
+*'''''T<sub>trans</sub>''：transmission time of one frame(from sensor to isp chip)'''
 The transmission time of a frame is related to the current resolution mode.

@@ Line 14: / Line 14: @@
 In this mode,The Trigger IO pin is used as the trigger signal, and the module begins to expose and output the image after receiving the trigger signal.
-Pin definition：[[CS-MIPI-SC132 Data Sheet#Interface .26 Pin list|CS-MIPI-SC132 Data Sheet]]
+Pin definition：[[CS-MIPI-SC132 Data Sheet#Interface .26 Pin list|CS-MIPI-SC132 Data Sheet]].
 Triggger edge, trigger delay and trigger debouncer attribute supported.

@@ Line 1: / Line 1: @@
 [[Camera module Trigger Mode manual/zh|查看中文]]
-== Camera Trigger Mode User Manual ==
+==Camera Trigger Mode User Manual==
 This an mainly introduces the trigger mode of global shutter camera module, including hardware trigger and software trigger.
@@ Line 14: / Line 14: @@
 In this mode,The Trigger IO pin is used as the trigger signal, and the module begins to expose and output the image after receiving the trigger signal.
-Pin definition：[[CS-MIPI-SC132 Data Sheet#Interface .26 Pin list|CS-MIPI-SC132 DataSheet]]
+Pin definition：[[CS-MIPI-SC132 Data Sheet#Interface .26 Pin list|CS-MIPI-SC132 Data Sheet]]
 Triggger edge, trigger delay and trigger debouncer attribute supported.

@@ Line 1: / Line 1: @@
 [[Camera module Trigger Mode manual/zh|查看中文]]
 ===Applicable Product models===
-* [[CS-MIPI-SC132 Global Shutter Camera|CS-MIPI-SC132]]
+*[[CS-MIPI-SC132 Global Shutter Camera|CS-MIPI-SC132]]
 ===The concept of image synchronization mode===

@@ Line 15: / Line 15: @@
 Triggger edge, trigger delay and trigger debouncer attribute supported.
-''triggeredge'' ：trigger edge
+'''''triggeredge'''''：trigger edge
-''tgdly''：trigger delay
+'''''tgdly'''''：trigger delay
-''tgdebncr''：debouncer
+'''''tgdebncr'''''：debouncer
 ====Software Trigger====
 In this mode，Use the I2C register to trigger  an image.
-''striggerone'': trigger an image
+'''''striggerone'''''： trigger an image
 Note：The above instructions refer to [[CS-MIPI-X i2c|CS Serial I2C setting]] .
@@ Line 33: / Line 33: @@
 but because the AE algorithm needs to go through some frames  to converge, the exposure effect of the first few frames will not be good.
-''expmode''：exposure mode setting
+'''''expmode'''''：exposure mode setting
-''metime''：manual exposure time
+'''''metime'''''：manual exposure time
-''meagain''：manual analog gain
+'''''meagain'''''：manual analog gain
-''medgain''：manual digital gain
+'''''medgain'''''：manual digital gain
 You can use the ''expostate'' instruction to read out the current exposure time and gain value in automatic mode as a reference.
@@ Line 47: / Line 47: @@
 '''''T<sub>tgmin =</sub> T<sub>exp</sub> + T<sub>trans</sub>'''''
-T<sub>tgmin</sub>  minimum trigger interval
+'''''T<sub>tgmin</sub>'''''：minimum trigger interval
-T<sub>exp</sub>： exposure time
+'''''T<sub>exp</sub>'''''：exposure time
-T<sub>trans</sub>：transmission time of one frame
+'''''T<sub>trans</sub>'''''：transmission time of one frame
 Accordingly, if the minimum trigger interval is known, the maximum allowable exposure time is:
@@ Line 57: / Line 57: @@
 '''''T<sub>expmax =</sub> T<sub>tgmin  -</sub> T<sub>trans</sub>'''''
-T<sub>expmax</sub> maximum exposure time
+'''''T<sub>expmax</sub>'''''：maximum exposure time
 If the time interval between the current trigger signal and the previous trigger signal is smaller than the minimum interval time,
@@ Line 63: / Line 63: @@
 the sensor will ignore the current trigger signal.
-*'''''T<sub>exp</sub>'' exposure time'''
+*'''''T<sub>exp</sub>''：exposure time'''
 Users can set it to automatical or manual.
@@ Line 71: / Line 71: @@
 ''expmode'' is manual : set exposure time via ''metime''.
-*'''''T<sub>trans</sub>'' ： transmission time of one frame'''
+*'''''T<sub>trans</sub>''：transmission time of one frame'''
 The transmission time of a frame is related to the current resolution mode.
@@ Line 77: / Line 77: @@
 |+Exposure time table in trigger mode
 !Video Format
-!'''''T<sub>trans</sub>'''''(ms)
+!'''''T<sub>trans</sub>'''''（ms）
 !Max Framerate
 !Maximum exposure time to guarantee maximum framerate（ms）
@@ Line 114: / Line 114: @@
 |+Trigger delay measurement result
 !Video Format
-!T<sub>exp</sub>（us）
+!''T<sub>exp</sub>''（us）
-!T<sub>total</sub>(ms）
+!''T<sub>total</sub>''（ms）
 |-
 |1280x1080

@@ Line 102: / Line 102: @@
 '''''T<sub>total</sub> = tgdly + T<sub>exp +</sub> T<sub>trans +</sub>T<sub>isp+</sub>T<sub>mipi</sub>'''''
-''T<sub>total</sub>'' ：the total trigger delay is the time from the trigger signal to the complete image output through the MIPI signal.
+'''''T<sub>total</sub>''''' ：the total trigger delay is the time from the trigger signal to the complete image output through the MIPI signal.
-tgdly: trigger delay time, the following measurements are configured to 0. ''tgdly'' is valid only for Hardware trigger mode.
+'''''tgdly'''''：trigger delay time, the following measurements are configured to 0. ''tgdly'' is valid only for Hardware trigger mode.
-T<sub>exp</sub> : exposure time，the following is based on the actual values read by ''expostate''.
+'''''T<sub>exp</sub>''''' exposure time，the following is based on the actual values read by ''expostate''.
-T<sub>isp</sub>：image signal processing time.
+'''''T<sub>isp</sub>'''''：image signal processing time.
-T<sub>mipi</sub>: MIPI transmission time.
+'''''T<sub>mipi</sub>'''''：MIPI transmission time.
 {| class="wikitable"
 |+Trigger delay measurement result