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先简单介绍一下树莓派CM4,已经知道的坛友可以略过
CM4可以看成是树莓派4的核心板(或者SoM,System on Module),尺寸小巧,板上集成了处理器
Broadcom BCM2711、内存、eMMC和供电系统。这个模块可以让设计人员非常方便的把树莓派硬件
和软件集成到系统里。
主要特性:
•Broadcom BCM2711, Quad core Cortex-A72 (ARM v8) 64-bit SoC @ 1.5GHz
•Small Footprint 55mm × 40mm × 4.7mm module
◦ 4 × M2.5 mounting holes
• H.265 (HEVC) (upto 4Kp60 decode), H.264 (upto 1080p60 decode, 1080p30 encode)
•OpenGL ES 3.0 graphics
•Options for 1GB, 2GB, 4GB or 8GB LPDDR4-3200 SDRAM with ECC
•Options for 0GB (CM4Lite), 8GB, 16GB, or 32GB eMMC Flash memory
◦ Peak eMMC bandwidth 100MBytes/s (four times faster than previous Compute modules)
•Option (see Appendix B) for certified radio module with:
◦ 2.4 GHz, 5.0 GHz IEEE 802.11 b/g/n/ac wireless
◦ Bluetooth 5.0, BLE
◦ On board electronic switch to select between PCB trace or external antenna
•Gigabit Ethernet PHY supporting IEEE 1588
•1 × PCIe 1-lane Host, Gen 2 ( 5Gbps )
•1 × USB 2.0 port ( highspeed )
•28 × GPIO supporting either 1.8v or 3.3v signalling and peripheral options:
◦ Up to 5 × UART
◦ Up to 5 × I2C
◦ Up to 5 × SPI
◦ 1 × SDIO interface
◦ 1 × DPI (Parallel RGB Display)
◦ 1 × PCM
◦ Up to 2× PWM channels
◦ Up to 3× GPCLK outputs
•2 × HDMI 2.0 ports (up to 4Kp60 supported)
• MIPI DSI:
◦ 1 × 2-lane MIPI DSI display port
◦ 1 × 4-lane MIPI DSI display port
• MIPI CSI-2:
◦ 1 × 2-lane MIPI CSI camera port
◦ 1 × 4-lane MIPI CSI camera port
•1 × SDIO 2.0 (CM4Lite)
•Single +5v PSU input.
相比前代模块,CM4接口的改进主要是增加了第二个HDMI、PCIe和以太网接口。
CM4有32种型号,有各种不同的内存、eMMC和是否有无线的配置组合,以适应不同场景需求。
CM4产品生命周期很长,将生产到2028年1月(Compute Module 4 will remain in production
until at least January 2028)。
先简单介绍这些,主要是让大家对CM4有个初步印象;更详细的资料可以看附件(product brief
和datasheet),也可以直接访问树莓派CM4产品网页:
https://www.raspberrypi.org/products/compute-module-4
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阿莫论坛20周年了!感谢大家的支持与爱护!!
知道什么是神吗?其实神本来也是人,只不过神做了人做不到的事情 所以才成了神。 (头文字D, 杜汶泽)
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