作者 | 将狼才鲸 |
---|---|
创建日期 | 2022-11-14 |
所属的Gitee源码和工程地址:才鲸嵌入式 / 开源安防摄像机(嵌入式软件)
Raspberry Pi boards (``raspi0``, ``raspi1ap``, ``raspi2b``, ``raspi3ap``, ``raspi3b``)
QEMU provides models of the following Raspberry Pi boards:
``raspi0`` and ``raspi1ap``
ARM1176JZF-S core, 512 MiB of RAM
``raspi2b``
Cortex-A7 (4 cores), 1 GiB of RAM
``raspi3ap``
Cortex-A53 (4 cores), 512 MiB of RAM
``raspi3b``
Cortex-A53 (4 cores), 1 GiB of RAM
Implemented devices
* ARM1176JZF-S, Cortex-A7 or Cortex-A53 CPU
* Interrupt controller
* DMA controller
* Clock and reset controller (CPRMAN)
* System Timer
* GPIO controller
* Serial ports (BCM2835 AUX - 16550 based - and PL011)
* Random Number Generator (RNG)
* Frame Buffer
* USB host (USBH)
* GPIO controller
* SD/MMC host controller
* SoC thermal sensor
* USB2 host controller (DWC2 and MPHI)
* MailBox controller (MBOX)
* VideoCore firmware (property)
Missing devices
* Peripheral SPI controller (SPI)
* Analog to Digital Converter (ADC)
* Pulse Width Modulation (PWM)
QEMU支持的一些嵌入式设备中,树莓派支持的外设最多,甚至都支持了VideoCore firmware (property) 2D 3D显示加速和视频编解码,这和对Intel和AMD的支持差不多了;而其它的嵌入式芯片都没有支持2D显示加速、图片编解码、视频编解码。
因为最新的P3、P4都是64位的ARM CPU,而嵌入式一般都还只是32位的,所以我选用P2 B,博通BCM2837,ARM Cortex-A7 900M 4核32位芯片,博通VideoCore GPU模块;我需要直接魔改树莓派的底层,毕竟嵌入式需要系统移植、驱动和应用都做。
参考网址: