Difference between revisions of "Raspberry Pi Application Note Index"

Revision as of 09:40, 27 February 2022

1 Main AppNotes

The latest system of Raspberry Pi - bullseye has removed the support of raspicam by default，which depends on MMAL and Broadcom's GPUs firmware. Of course we can still use this so called legacy mode, and it still has value.

The following articles address the use of different models of camera modules in lagacy mode.

How to use CS-MIPI-X camera module on Raspberry Pi

Raspberry Pi decided to use libcamera to implement an isp solution that does not rely on Broadcom's gpu firmware as much as possible.

At the driver layer, the standard V4L2 sensor driver was used whenever possible, and a series of libcamera-apps were released at the application layer.

In the following article, we provide the standard V4l2 mode driver and implement the application layer demo based on this driver: preview, video recording, network transmission, opencv application, etc.

How to use VEYE and CS series camera module on Raspberry Pi(V4L2 mode)

Of course, we have plans to provide application layer demos similar to libcamera-apps in the future.

2 I2C user guide

For the parameter configuration aspect of the camera module, we use the DRA (Direct Register Access) approach instead of encapsulating the interface in the v4l2 driver in order to achieve better flexibility and a more direct parameter configuration function.

The following shell scripts can be used directly or embedded into your programs. Of course, by reading their source codes, you will be able to see the registers and access methods corresponding to each function.

2.1 veye_mipi_i2c.sh

Applicable models: VEYE-MIPI-290/327,VEYE-MIPI-IMX327S,VEYE-MIPI-IMX462,VEYE-MIPI-IMX385.

VEYE-MIPI-290/327 I2C.sh user guide

2.2 cs_mipi_i2c.sh

Applicable models: CS-MIPI-IMX307,CS-MIPI-SC132.

CS-MIPI-IMX307 I2C.sh user guide

3 Others

Raspberry Pi I2C bus conflict problem

@@ Line 2: / Line 2: @@
 === Main AppNotes ===
+The latest system of Raspberry Pi - bullseye has removed the support of '''raspicam''' by default，which depends on MMAL and Broadcom's GPUs firmware. Of course we can still use this so called '''legacy mode''', and it still has value.
+The following articles address the use of different models of camera modules in lagacy mode.
 * [[CS-MIPI-X for Raspberry Pi|How to use CS-MIPI-X camera module on Raspberry Pi]]
@@ Line 7: / Line 10: @@
 *[[VEYE-MIPI-290/327 for Raspberry Pi|How to use VEYE-MIPI-290/327 camera module on Raspberry Pi]]
 *[[CS-FPD-CAM for Raspberry Pi|How to use CS-FPD-CAM series camera module on Raspberry Pi]]
+Raspberry Pi decided to use libcamera to implement an isp solution that does not rely on Broadcom's gpu firmware as much as possible.
+At the driver layer, the standard V4L2 sensor driver was used whenever possible, and a series of libcamera-apps were released at the application layer.
+In the following article, we provide the standard V4l2 mode driver and implement the application layer demo based on this driver: preview, video recording, network transmission, opencv application, etc.
 *[[V4L2 mode for Raspberry Pi|How to use VEYE and CS series camera module on Raspberry Pi(V4L2 mode)]]
+Of course, we have plans to provide application layer demos similar to libcamera-apps in the future.
 === I2C user guide ===
+For the parameter configuration aspect of the camera module, we use the DRA (Direct Register Access) approach instead of encapsulating the interface in the v4l2 driver in order to achieve better flexibility and a more direct parameter configuration function.
+The following shell scripts can be used directly or embedded into your programs. Of course, by reading their source codes, you will be able to see the registers and access methods corresponding to each function.
+==== veye_mipi_i2c.sh ====
+Applicable models: VEYE-MIPI-290/327,VEYE-MIPI-IMX327S,VEYE-MIPI-IMX462,VEYE-MIPI-IMX385.
 *[[VEYE-MIPI-290/327 i2c/|VEYE-MIPI-290/327 I2C.sh user guide]]
+==== cs_mipi_i2c.sh ====
+Applicable models: CS-MIPI-IMX307,CS-MIPI-SC132.
 *[[CS-MIPI-X i2c|CS-MIPI-IMX307 I2C.sh user guide]]