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by Gavinmc42
Sat Jul 13, 2019 9:50 am
Forum: Java
Topic: Is NetBeans best IDE for Pi 4 today or is usable Eclipse too?
Replies: 9
Views: 158

Re: Is NetBeans best IDE for Pi 4 today or is usable Eclipse too?

Go RAD, Lazarus and FPC. I use the baremetal version Ultibo. Probably the fastest way I have now for making apps without an OS being needed. I have not tried Netbeans on a Pi4, but I have used it Windows networked to a Pi. I used it quite a bit until it went open. If you like Java, Processing is pro...
by Gavinmc42
Sat Jul 13, 2019 9:30 am
Forum: Bare metal, Assembly language
Topic: BCM2711B0
Replies: 30
Views: 1126

Re: BCM2711B0

I don't know enough of this stuff. Maybe you can answer this question Can 3 cores run 64bit and one run 32bit? There is all these various stubs around ARM6, ARM7, ARM8. They would be for core 0? "out of order execution" Not even going to try to figure that stuff out. That 512KB boot EEPROM is so cal...
by Gavinmc42
Sat Jul 13, 2019 9:14 am
Forum: RISCOS
Topic: Proposal to show speed of RISC OS compared to Linux.
Replies: 56
Views: 1221

Re: Proposal to show speed of RISC OS compared to Linux.

I found RISC-OS nice and fast but a bit retro looking. For most of my stuff the requirements are single purpose applications. Multi-user is not relevant. What is the point of speed tests? Some of my stuff runs on B+'s and max out at 2% cpu usage. Cpu/OS speed is is not relevant as much as speed of d...
by Gavinmc42
Sat Jul 13, 2019 8:43 am
Forum: Troubleshooting
Topic: Raspberry pi 4 - Not working Raspbian OS
Replies: 6
Views: 211

Re: Raspberry pi 4 - Not working Raspbian OS

If the green led is not flashing then the uSD card maybe the issue.
I sometimes find the contacts get dirty, I just rub them with my thumb, the fingerprint grooves are a tiny bit abrasive.

I almost always find it is the uSD card or the power supply.
by Gavinmc42
Sat Jul 13, 2019 8:33 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 B stopped & died suddenly [due to AC adaptor]
Replies: 8
Views: 378

Re: Raspberry Pi 4 B stopped & died suddenly

I found some adaptors for about $2 in my local Daiso. Never noticed them before till I needed them. You probably don't have a way to test the power supply either. Pi's are normally pretty reliable, power supplies less so. Know any other Pi uses close by? Sacrificing a cable/adaptor to break out the ...
by Gavinmc42
Sat Jul 13, 2019 8:22 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 107
Views: 9984

Re: Raspberry Pi 4 usb boot?

it's peanuts for a new board regardless Are you offering to pay for the PCB revision? 15K PCB's per day with a pipeline 1-2 weeks long. Not a simple PCB,, many layers, so a few dollars each? Peanuts must be expensive in your neighbourhood? Do RPT wait to see if any other "defects" show up? How many...
by Gavinmc42
Sat Jul 13, 2019 7:57 am
Forum: Troubleshooting
Topic: I can´t boot from usb in pi 4
Replies: 74
Views: 3431

Re: I can´t boot from usb in pi 4

Probably around another two or three weeks for Ethernet booting, another month for USB flash booting Thanks Gordon for the update. So if you guys had waited for those two issues to be fixed there would be about 1/2 Million Pi's sitting in a warehouse or two. The Pi3B+ was the second version, the Pi...
by Gavinmc42
Sat Jul 13, 2019 5:17 am
Forum: Troubleshooting
Topic: I can´t boot from usb in pi 4
Replies: 74
Views: 3431

Re: I can´t boot from usb in pi 4

...one of these days am going to try this method.... (help with some procedures... please.... ;) ) I will wait till it works, still need to get another Pi4 and a Gigabit switch and probably better cabling. Seen 8, 16, 24, do they have 32 port switches? Those would make sense in a classroom. And wit...
by Gavinmc42
Sat Jul 13, 2019 3:04 am
Forum: Bare metal, Assembly language
Topic: BCM2711B0
Replies: 30
Views: 1126

Re: BCM2711B0

I can't find anything on the BCM2711B0 ! Can anyone else ? Ah, the good old days when everything was in one datasheet. You need to grab the A72 manuals from ARM's website. They have some interesting libraries too, like the Compute Library. There is a 300+ page manual in the works. Getting checked/e...
by Gavinmc42
Sat Jul 13, 2019 2:43 am
Forum: Bare metal, Assembly language
Topic: gcc-aarch64-linux-gnu on a RP4
Replies: 2
Views: 119

Re: gcc-aarch64-linux-gnu on a RP4

I use Gentoo64 on a 3B+ for aach64 native compiling. Not much around on how to cross compile aarch32 on aarch64 Pi's yet. Sakaki has got a test of Gentoo64 on a Pi4, not ready for release yet. Plus she puts in a newer gcc version than Raspbian normally has. I have had other compilers working in Gent...
by Gavinmc42
Sat Jul 13, 2019 12:27 am
Forum: Troubleshooting
Topic: I can´t boot from usb in pi 4
Replies: 74
Views: 3431

Re: I can´t boot from usb in pi 4

You're forgetting that the primary purpose of the Pi was (and AFIK still is) providing cheap educational computers for kids to learn coding on. Not something that can easily be done with SSD or HDD storage. And for education market I can see network booting would be a much higher priority than USB ...
by Gavinmc42
Sat Jul 13, 2019 12:17 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 253
Views: 45090

Re: Raspberry Pi 4 temperature

well after trawling through all the posts in this thread it seems pretty clear that the official pi4 case is not fit for purpose and they should stop selling it with immediate effect. Some litigious types could make this thing cost them serious money if they don't get a handle on it... Wow, you dec...
by Gavinmc42
Sat Jul 13, 2019 12:06 am
Forum: General discussion
Topic: I cannot install ROS kinetic in RPI4, Did somebody get it?
Replies: 7
Views: 197

Re: I cannot install ROS kinetic in RPI4, Did somebody get it?

ROS is big bloaty piece of Robotics software only a Uni professor can love and students hate. I tried it back in Pi B days, well because I did a Robotics Diploma ;) Need another degree in Computer Science to get it working. But Pi4A, hmm, will it be good enough to run it? When I get a 4B4 that will ...
by Gavinmc42
Fri Jul 12, 2019 11:43 am
Forum: Gaming
Topic: Supertuxkart on Raspberry Pi
Replies: 36
Views: 10354

Re: Supertuxkart on Raspberry Pi

You should try it on a Pi4 :D
by Gavinmc42
Fri Jul 12, 2019 11:28 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 253
Views: 45090

Re: Raspberry Pi 4 temperature

Is that going into space?
by Gavinmc42
Fri Jul 12, 2019 11:26 am
Forum: General discussion
Topic: PI4B and Raspbian challenge - Use as main computer a fortnight.
Replies: 31
Views: 1253

Re: PI4B and Raspbian challenge - Use as main computer a fortnight.

Adding video and keyboard support into the mix will complicate things a lot.
How about some pull down resistors on GPIO and a three way rotary switch.
Select which one to boot/run from, uSD, USB3/0, USB3/1.

Barebox did compile to 300+KB ;)
by Gavinmc42
Fri Jul 12, 2019 11:17 am
Forum: Troubleshooting
Topic: Rpi4 - cannot change resolution with GL driver on
Replies: 10
Views: 276

Re: Rpi4 - cannot change resolution with GL driver on

Should be OK with OMXplayer though I think?
OMXplayer has been updated for Pi4 and 4K60?

I'm going to have to get a 4K screen one day.
Wonder if I can walk into a TV store and try them all out?
8K at 15hz?
by Gavinmc42
Fri Jul 12, 2019 11:11 am
Forum: General discussion
Topic: RPi4 bluetooth range/power issue?
Replies: 2
Views: 179

Re: RPi4 bluetooth range/power issue?

Have you tried turning the WiFi off?
by Gavinmc42
Fri Jul 12, 2019 11:08 am
Forum: General discussion
Topic: Raspberry Pi 4 usb boot?
Replies: 107
Views: 9984

Re: Raspberry Pi 4 usb boot?

Oh good. I'm not going entirely mad, then. I am It has been so long I forgot how to boot from SD and run from USB. That goes back to Pi3 days? We have all been talking about it but in the official docs I don't see the temporary fix for it. With the Pi 4B you can put /boot on SD card and run the mai...
by Gavinmc42
Fri Jul 12, 2019 10:42 am
Forum: General discussion
Topic: PI4B and Raspbian challenge - Use as main computer a fortnight.
Replies: 31
Views: 1253

Re: PI4B and Raspbian challenge - Use as main computer a fortnight.

Thanks guys, you convinced me. Kicad it is. I was aware of that Cern link, but that RISC-V stuff is new. I liked the old Dos version of Protel ;) Mind you I'm old school and started with Bishop tape. And before that wire wrap and Heater's favourite - tags strips. Altium version 19 has gone for that ...
by Gavinmc42
Fri Jul 12, 2019 8:45 am
Forum: General discussion
Topic: I cannot install ROS kinetic in RPI4, Did somebody get it?
Replies: 7
Views: 197

Re: I cannot install ROS kinetic in RPI4, Did somebody get it?

You might be the first who has tried on a Pi4. Someone will figure it out the Pi4 is so much better than the 3B+ or 3A+. Compiling the big stuff you might need to increase swap file size? Have not checked in Buster but it is normally 100MB, changing it to 1GB has helped me before. You can also make ...
by Gavinmc42
Fri Jul 12, 2019 8:23 am
Forum: General discussion
Topic: RPi4 - MicroSD card speed classes supported?
Replies: 17
Views: 1054

Re: RPi4 - MicroSD card speed classes supported?

Looks like there has been a flash chip price drop recently. Got a Sandisk 64GB A1 uSD and some 32GB USB 3.1 Ultra fit sticks at good prices today. Spent about 3 times the cost of a Pi4 on memory this week. Just got yelled at by the finance manager when the credit card bills got spotted :oops: Might ...
by Gavinmc42
Fri Jul 12, 2019 5:26 am
Forum: Off topic discussion
Topic: Lexical issue, what does "broken out pins" mean.
Replies: 4
Views: 248

Re: Lexical issue, what does "broken out pins" mean.

Like the FM antenna pin is not broken out of the RF chip so we cannot listen to radio on our Pi's ;)
by Gavinmc42
Fri Jul 12, 2019 5:15 am
Forum: General discussion
Topic: RPi4 chargers
Replies: 19
Views: 761

Re: RPi4 chargers

I just use the old 2.5Amp PS with adapter.
Not doing much with my 4B1 , it's just a desktop replacement.
by Gavinmc42
Fri Jul 12, 2019 5:10 am
Forum: General discussion
Topic: I didn't think the usb c power thing was a big deal...
Replies: 82
Views: 3366

Re: I didn't think the usb c power thing was a big deal...

Matter of physics, the old MicroUSb is not rated for higher currents, USB-C is. More current is needed if you want USD HDs to work ok. If you don't have a USB drive and use uSD then old 2.5 amp supply works fine with a tiny $2 USBmicro to USB-C adapter. No big deal. The big deal is those adapters ar...

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