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Frequently asked questions 1
Why choose ARM?
Consider both cost and performance.
Consider both cost and performance.
How is the graphics performance?
The GPU supports OpenGL ES 3.x, hardware-accelerated OpenVG, and hardware decoding of HEVC video up to 4Kp60.
The GPU supports OpenGL ES 3.x, hardware-accelerated OpenVG, and hardware decoding of HEVC video up to 4Kp60.
How to start?
The SD card must be used for system booting, but you can specify to read the operating system from the USB hard disk after booting to "take over" the boot process. For the installation of the system, please refer to "Using the Raspberry Pi for the first time, how to install, start and configure".
Raspberry Pi cannot boot without SD card inserted.
The SD card must be used for system booting, but you can specify to read the operating system from the USB hard disk after booting to "take over" the boot process. For the installation of the system, please refer to "Using the Raspberry Pi for the first time, how to install, start and configure".
Raspberry Pi cannot boot without SD card inserted.
Where is the power switch?
Power on: plug in the power plug
Shutdown: Unplug the power plug
Special reminder: Raspberry Pi is a computer after all! Please use the shutdown command (halt or sudo halt) first to ensure that Linux stops all reading and writing to the SD card before cutting off the power! Otherwise, it is very easy to lose data.
Power on: plug in the power plug
Shutdown: Unplug the power plug
Special reminder: Raspberry Pi is a computer after all! Please use the shutdown command (halt or sudo halt) first to ensure that Linux stops all reading and writing to the SD card before cutting off the power! Otherwise, it is very easy to lose data.
Why is there no real time clock?
The Raspberry Pi does not have a real-time clock, so it cannot maintain the time of the clock after it is turned off. The Raspberry Pi that is not connected to the network needs to manually set the time every time it is turned on. (Connected to the network, it will automatically get the time when it is turned on)
Adding a real-time clock clock circuit is actually surprisingly expensive. Because once the battery is added to the board, the space and interface circuit will greatly push up the cost of the Raspberry Pi. If your application or electronic production needs it, you can consider using the GPIO expansion port to connect the real-time clock circuit externally.
The Raspberry Pi does not have a real-time clock, so it cannot maintain the time of the clock after it is turned off. The Raspberry Pi that is not connected to the network needs to manually set the time every time it is turned on. (Connected to the network, it will automatically get the time when it is turned on)
Adding a real-time clock clock circuit is actually surprisingly expensive. Because once the battery is added to the board, the space and interface circuit will greatly push up the cost of the Raspberry Pi. If your application or electronic production needs it, you can consider using the GPIO expansion port to connect the real-time clock circuit externally.
Can memory be increased?
cannot. The memory is a PoP package "buckled" on the CPU/GPU and cannot be disassembled.
cannot. The memory is a PoP package "buckled" on the CPU/GPU and cannot be disassembled.
Is there a manual download for XX chip?
Unfortunately, Broadcom does not provide a complete manual for the BCM2711 chip that is the core of the Raspberry Pi.
We will provide technical documents to explain the relationship and use of BCM2711 and Raspberry Pi onboard resources (GPIO, etc.). We will also post the circuit diagram of the Raspberry Pi.
Unfortunately, Broadcom does not provide a complete manual for the BCM2711 chip that is the core of the Raspberry Pi.
We will provide technical documents to explain the relationship and use of BCM2711 and Raspberry Pi onboard resources (GPIO, etc.). We will also post the circuit diagram of the Raspberry Pi.
But I just want the information of hardware XX!
We will publish other documents in the future. But what to release is subject to the decision of the foundation.
We will publish other documents in the future. But what to release is subject to the decision of the foundation.
I must ask for the information of XX! ! Give me! !
If you need full documentation for the BCM2711, you need to sign a non-disclosure agreement with Broadcom, the supplier of the chip. However, you also need to provide Broadcom with the production and sales plan for using this chip, as well as your expectation on the chip usage.
(In other words, only accepting large-scale commercial cooperation)
If you need full documentation for the BCM2711, you need to sign a non-disclosure agreement with Broadcom, the supplier of the chip. However, you also need to provide Broadcom with the production and sales plan for using this chip, as well as your expectation on the chip usage.
(In other words, only accepting large-scale commercial cooperation)
Why doesn't Raspberry Pi have built-in XX hardware or XX interface?
The Raspberry Pi is a charity product - we want to make the cheapest computer with the most basic features. Under price constraints, the choice of hardware and interface is a very difficult decision.
The Raspberry Pi is a charity product - we want to make the cheapest computer with the most basic features. Under price constraints, the choice of hardware and interface is a very difficult decision.
Can Raspberry Pi be used for XX purposes?
We only look at using the Raspberry Pi for educational purposes. If you want to use the Raspberry Pi for any other purpose, it's fine as long as you do the research yourself.
We only look at using the Raspberry Pi for educational purposes. If you want to use the Raspberry Pi for any other purpose, it's fine as long as you do the research yourself.
How to connect keyboard and mouse?
Use the USB port. Raspberry Pi Type A has one, and Type B has two USB ports. If you want to connect more USB devices, just use USB HUB.
A wireless keyboard and mouse combo is recommended. In addition to being easy to use, the most important thing is that it can save a USB port. Recommended: Logitech MK240 or MK220.
Use the USB port. Raspberry Pi Type A has one, and Type B has two USB ports. If you want to connect more USB devices, just use USB HUB.
A wireless keyboard and mouse combo is recommended. In addition to being easy to use, the most important thing is that it can save a USB port. Recommended: Logitech MK240 or MK220.
