Tech/Interface-dat/HUB75-DAT/2024-01-14-16-31-06.png
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Tech/Interface-dat/HUB75-DAT/HUB75-DAT.md
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![](22-29-13-05-07-2023.png)
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+![](2024-01-14-16-31-06.png)
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Tech/SBC-dat/RPI-dat/RPI-CM4-dat/RPI-CM4-dat.md
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# RPI-CM-dat
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+## CM3
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+
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The Raspberry Pi Compute Module is a small, powerful, and customizable single-board computer designed for embedded applications. It is based on the same architecture as the Raspberry Pi boards but in a more compact form factor. The Compute Module provides a more flexible and modular approach compared to the standard Raspberry Pi boards.
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Here are some key features of the Raspberry Pi Compute Module:
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![](2023-10-27-16-45-37.png)
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+CM3+: https://datasheets.raspberrypi.com/cm/cm3-plus-datasheet.pdf
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+
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+## CM4
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+
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+CM4 exposes GPIO Bank 0, which covers GPIOs 0 to 27. Naming is identical between 2711 and CM4.
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+Bank 1 (GPIOs 28 to 45) is largely used by ethernet functions and wireless LAN.
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+Bank 2 (GPIOs 46 to 57) is used for eMMC/SD card.
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+
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+CM4 also has GPIOs 44&45 from Bank 1 exposed for the I2C bus normally connected to the camera or DSI displays. See CM4 datasheet section 2.9 "I2C (SDA0 SCL0)"
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+
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+
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+default UARTs: https://forums.raspberrypi.com/viewtopic.php?t=345086
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+
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+
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## Specs
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- datasheet [[cm4-datasheet.pdf]]
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-- [[RPI-CM]]
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+- [[RPI-CM4]]
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- https://www.raspberrypi.com/products/compute-module-4/?variant=raspberry-pi-cm4001000
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- https://gitlab.com/m10cube/m10
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-- https://github.com/ShawnHymel/rpi-cm4-carrier-template
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+- https://github.com/ShawnHymel/rpi-cm4-carrier-template
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+
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+
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+https://elinux.org/RPi_BCM2711_GPIOs
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Tech/SBC-dat/RPI-dat/RPI-CM4-expansion-board-dat/RPI-CM4-expansion-board-dat.md
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## ref
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-- [[RPI-CM4-expansion-board]]
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+- [[RPI-CM4-expansion-board]]
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+
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+minimum carrier board
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+- Small carrier board for Raspberry Pi CM4 - [mincab](https://uplab.pro/2021/10/mincab/)
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+- [Minimal_carrier_board_for_CM4](https://github.com/dronecz/Minimal_carrier_board_for_CM4)
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Tech/SBC-dat/RPI-dat/RPI-dat.md
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- turn on I2C functions at [[raspi-config]]
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+## chip
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+- [[BCM2835-dat]] - [[BCM2711-dat]]
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## demo code
board-series-dat/RMP-driver-dat/RMP-driver-dat.md
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# RGB Matrix Panel Driver Board
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+- [[RPI-dat]]
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+
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- with raspberry pi - [[MPC1073-dat]] - [[MPC1119-dat]]
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- with ESP32 - [[IDD1013-dat]] - [[IDD1016-dat]]
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- with esp8266 - [[IDD1007-dat]]