The second chapter of this report point out on the literature review, reviewing the various ideas on Raspberry Pi with references to journals and other publications on the internet. The first chapter will include the introduction, brief history, purpose, specifications, advantages and disadvantages of Raspberry Pi. The device is a reasonably powerful computer on a credit card sized PCB. The software is very stable and there are many general purpose I/O pins (GPIO) available for interfacing to external devices. The power requirements are very modest and a simple 5V phone charger with micro USB plug is enough to run the system. The system boots from an SD card and an 8 GB SD card is more than enough to store the operating system and lots of data. Not every school or family is rich so this is a laudable objective I’m happy to get behind.The Raspberry Pi is a single board, low cost, low power computer system running Linux (or several other operating systems) on an ARM processor architecture. The designer had to save like mad when he was a child to buy a computer and this is why he is so motivated to keep the price low. But then there’s the ever present price point. I don’t know if they could have exposed a bus interface given board design requirements but something like this may have been useful for expandability and grown the aftermarket. There’s also a couple of case interior design issues too whereby they could have had more space inside for expandability if a heatsink plate had been designed slightly difefrently. That said PI have their reasons even if they missed a possibility or two at the board design stage. They did missed a couple of opportunities though.ĨGB and M.2 slot and maybe a proper HDMI port and dump the second one for an extra USB are the obvious ones. It’s a good design and done very deliberately and for good reasons to a price point. It won’t play the latest games but if developers put their minds towards scaleability and a sense of story and adventure the PI has just enough puff to the Raspberry PI website there’s a few comments about limitations. If the PI 400 had come out earlier and had more memory and a drive slot I would probably have bought that instead of a laptop, If it also had an aftermarket full size keyboard I honestly think for basic office work and playing media and browsing and stuff it would be perfect. Okay, it weighs like a box of bricks but still. I have a Lenovo Thinkpad and dock and like the big button which makes it rip and go. I realise that moving to ARM will break the ABI promise made many years ago, but as it’s been 20 years since the last official BeOS release (I don’t count Zeta), does that promise still matter Chris Barnatt was really excited about the form factor as he could just pick it up off his desk and wave it around and carry it anywhere. Haiku/BeOS was all about the user experience, but if the OS doesn’t run on your hardware that’s not a great experience. They rely on 3rd parties supplying drivers that work with their OS. Microsoft can’t keep up with the hardware market, even with their huge army of developers. This is not a reflection on the herculean efforts the developers have put into Haiku, but rather the reality of having such a fast moving and varied hardware platform to attempt to target. The majority (myself included) can only run Haiku as a VM as the hardware support is too limited to run it any other way. You’re nicely highlighting the problem with Haiku though. The ARM port is important for the future, since desktop and laptop ARM hardware may become far more available than it is today.Īs RISC OS was born to run on the ARM platform (I shed a tear when they cancelled the Phoebe), it’s no big surprise that it took little effort to get it running on the Pi. On 64bit ARM, the floating point support is not optional, so it may be easier to move forward with the 64bit port first. We may need to build the bootloader in soft-float mode (not using the hardware floating point processing), but that in turn creates some difficulties with properly configuring gcc. However, the EFI firmware does not properly handle these registers, and this seems to result in some confusion when passing data to and from the firmware. Until now we had worked with the “hardfloat” ABI for Haiku, assuming floating point hardware was available (as is the case on any modern CPU we could reasonably target). There are problems related to the “hardfloat” and “softfloat” ABIs on ARM, however. The bootloader is now running mostly fine in UEFI mode but there is some work to be done to set up the MMU before handing control over to the kernel. Tqh and kallisti5 are working on the ARM port. My pick this time is progress on the ARM port. There’s a new Haiku activity report, and there’s been a lot of activity over the past two months.
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