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by jamesh
Mon Jul 26, 2021 8:48 pm
Forum: General discussion
Topic: Why does RpiOS use Ubuntu's kernel? [IT DOESN'T]
Replies: 28
Views: 585

Re: Why does RpiOS use Ubuntu's kernel?

When posting it's always good to get your facts right first, before launching off on a crusade. That's true of all parties though. Several people were misinterpreting what I was saying and doing. For instance, someone thought I was cross-compiling even though I wasn't and never said I was. I've che...
by jamesh
Mon Jul 26, 2021 6:51 pm
Forum: Compute Module
Topic: CM3+ instead of CM3 Lite
Replies: 3
Views: 94

Re: CM3+ instead of CM3 Lite

Sadly not, the chip crisis means everything is in very short supply. CM4 are slightly more common, but we cannot supply large numbers - just enough for R&D purposes. CM3 are completely sold out until 2022 The problem is that chip suppliers went from offering 26 week lead times to 52 overnight. T...
by jamesh
Mon Jul 26, 2021 6:15 pm
Forum: SDK
Topic: Setting PICO_SDK_PATH in your CMakeLists.txt (hint: dont)
Replies: 16
Views: 437

Re: Setting PICO_SDK_PATH in your CMakeLists.txt (hint: dont)

Some would say either would be better than '~/pico/pico-sdk'. Some would. On the other hand having it in your home directory has it's advantages. pico-sdk, pico-examples, and that other one are git repos. You can manipulate them as such. I do checkouts, create new branches, commits, etc as a normal...
by jamesh
Mon Jul 26, 2021 6:12 pm
Forum: General discussion
Topic: Why does RpiOS use Ubuntu's kernel? [IT DOESN'T]
Replies: 28
Views: 585

Re: Why does RpiOS use Ubuntu's kernel?

Pi engineer here 1. We build and maintain our own kernel, nothing to do with Canonical. 2. The kernel github and instructions to build should be valid, nothing has changed in that area for a while so I would not expect problems. If you are having problems, please describe the issue you are seeing an...
by jamesh
Mon Jul 26, 2021 3:43 pm
Forum: General
Topic: Pi Pico - the most user un-friendly MCU?
Replies: 246
Views: 7026

Re: Pi Pico - the most user un-friendly MCU?

WizIO wrote:
Mon Jul 26, 2021 12:16 pm
I do not want to argue
we will live, we will see...
Just out of interest, as we don't have a reseller in Bulgaria, how did you get hold of over 900 Pico's?
by jamesh
Mon Jul 26, 2021 3:42 pm
Forum: Beginners
Topic: Is it possible to boot the Raspberry Pi 4 with arm_freq = 1622MHz and then dynamically increase it?
Replies: 10
Views: 350

Re: Is it possible to boot the Raspberry Pi 4 with arm_freq = 1622MHz and then dynamically increase it?

If you get to a point where it doesn't boot, and overvolting doesn't fix it, then you've reached the max the chip will do. We don't guarantee anything over 1500 on the Pi4. but a lot of people can get to 2000, and 1800 should almost always be possible., I'm interested in dynamically changing the vo...
by jamesh
Mon Jul 26, 2021 3:38 pm
Forum: Camera board
Topic: Camera Module V1 FPC Connector Recommendation
Replies: 2
Views: 64

Re: Camera Module V1 FPC Connector Recommendation

Whatever you choose, make sure you get the pinout the right way round - you can have the pins on the upper or lower surface of the connectors, get it wrong and nothing works.
by jamesh
Mon Jul 26, 2021 3:37 pm
Forum: SDK
Topic: is the arduino support for RPI2040 better then CMAKE ????
Replies: 23
Views: 478

Re: is the arduino support for RPI2040 better then CMAKE ????

A simple IDE would make my life easier on Windows. I don't like VS Code so I'm currently switching between Notepad and Command Prompt and that quickly becomes a PITA. Despite that I can still say I am happy with what there is but that doesn't mean I can't be happier still. That is what drove me dow...
by jamesh
Mon Jul 26, 2021 11:48 am
Forum: SDK
Topic: is the arduino support for RPI2040 better then CMAKE ????
Replies: 23
Views: 478

Re: is the arduino support for RPI2040 better then CMAKE ????

About ten people have asked for something else, one at least a major PlatformIO fan, so somewhat biased.

Considering the number of Pico's sold, that's not a huge reason to change anything, but like I said, we'll look at the instructions to see if they can be improved.
by jamesh
Mon Jul 26, 2021 11:05 am
Forum: General
Topic: Pi Pico - the most user un-friendly MCU?
Replies: 246
Views: 7026

Re: Pi Pico - the most user un-friendly MCU?

500k... at me, the balance is like this ( Pi Pico board ) for 6 months: 12 donated 56 sold 860 in stock edit: Question: why did i try to make it easier ( SDK ) Answer: because I know what will happen... Perhaps your negativity to the device and it's surrounding systems is putting your customers off...
by jamesh
Mon Jul 26, 2021 10:58 am
Forum: SDK
Topic: is the arduino support for RPI2040 better then CMAKE ????
Replies: 23
Views: 478

Re: is the arduino support for RPI2040 better then CMAKE ????

I would argue that the Pico SDK is simple and easy to use, a page or two of instructions gets you up and running. It's certainly not like dropping a new pilot in to the seat of an A380, the flight manual certainly has more than one page.
by jamesh
Mon Jul 26, 2021 10:43 am
Forum: Compute Module
Topic: CM3+ instead of CM3 Lite
Replies: 3
Views: 94

Re: CM3+ instead of CM3 Lite

The CM3+ is also in very short supply, are you sure you can get those? Current lead times are Q1 2022 due to the ongoing worldwide chip shortage.
by jamesh
Mon Jul 26, 2021 10:43 am
Forum: Other projects
Topic: Looking for a large display
Replies: 2
Views: 66

Re: Looking for a large display

Any number of scrolling LED signs on Ebay that would do the job I reckon.
by jamesh
Mon Jul 26, 2021 10:11 am
Forum: General
Topic: Pi Pico - the most user un-friendly MCU?
Replies: 246
Views: 7026

Re: Pi Pico - the most user un-friendly MCU?

That's why we have spent a huge amount of time making the build system easy to use. Now it's a good time to internalize your users' feedback and evaluate if your stated goal was actually achieved. Intentions and outcomes are not the same thing. ...Just use the build system that we spent all this ti...
by jamesh
Mon Jul 26, 2021 10:01 am
Forum: Beginners
Topic: Is it possible to boot the Raspberry Pi 4 with arm_freq = 1622MHz and then dynamically increase it?
Replies: 10
Views: 350

Re: Is it possible to boot the Raspberry Pi 4 with arm_freq = 1622MHz and then dynamically increase it?

If you get to a point where it doesn't boot, and overvolting doesn't fix it, then you've reached the max the chip will do. We don't guarantee anything over 1500 on the Pi4. but a lot of people can get to 2000, and 1800 should almost always be possible.,
by jamesh
Mon Jul 26, 2021 9:55 am
Forum: Compute Module
Topic: CM4, custom MIPI TFT display connected to DISP1 DSI interface
Replies: 13
Views: 243

Re: CM4, custom MIPI TFT display connected to DISP1 DSI interface

DSI displays are very difficult to get going. The DSI spec describes an electrical connection, but the register settings is pretty much a free for all, so every display is different, and every display usually needs some arcane set of registers set to values that make no sense to anyone except the di...
by jamesh
Mon Jul 26, 2021 8:22 am
Forum: MicroPython
Topic: Trivial code sometimes takes 5ms and interrupts are missed
Replies: 14
Views: 462

Re: Trivial code sometimes takes 5ms and interrupts are missed

Ok. If it is a full 10 us per statement, then most definitely this will be an issue. I never did the math but was assuming something like 1us. Either way, I will go back to Arduino for this project, but the price point and the simplicity of the Pico means I expect to come back to it later for other...
by jamesh
Mon Jul 26, 2021 8:15 am
Forum: General
Topic: Pi Pico - the most user un-friendly MCU?
Replies: 246
Views: 7026

Re: Pi Pico - the most user un-friendly MCU?

There is also a clear gap between the cmake build system and the SDK installation process, there are two very different things.
by jamesh
Sun Jul 25, 2021 8:16 pm
Forum: SDK
Topic: Setting PICO_SDK_PATH in your CMakeLists.txt (hint: dont)
Replies: 16
Views: 437

Re: Setting PICO_SDK_PATH in your CMakeLists.txt (hint: dont)

I second the idea of defining a standard location like "/opt/raspberrypi/pico-sdk". Ah, but do that and others will insist it should be in /usr/local Some would say either would be better than '~/pico/pico-sdk'. And what about Windows? Not renowned for having either of those folders.... R...
by jamesh
Sun Jul 25, 2021 8:09 pm
Forum: Compute Module
Topic: CM4 TWO Ethernet Port
Replies: 9
Views: 367

Re: CM4 TWO Ethernet Port

I'm asking around to see if there is such a thing as a dual ethernet PCIe chip. Apparently there is, but I don't know any part numbers. Can also get more ports. However, I suspect that even if you find such a device, getting hold of them in quantity is unlikely given the current chip shortages, some...
by jamesh
Sun Jul 25, 2021 8:05 pm
Forum: SDK
Topic: is the arduino support for RPI2040 better then CMAKE ????
Replies: 23
Views: 478

Re: is the arduino support for RPI2040 better then CMAKE ????

i have not problems with install, seting or using cmake , but want to use a simple ide development like arduino ide for some students that talk to me for help making software and hardware with pico. need a easy way to explane to them how to install or setup seting for cmake envirment. ardu ide is s...
by jamesh
Sun Jul 25, 2021 5:31 pm
Forum: SDK
Topic: is the arduino support for RPI2040 better then CMAKE ????
Replies: 23
Views: 478

Re: is the arduino support for RPI2040 better then CMAKE ????

CMake is just a build system, nothing to do with the programming side really. As long as you write decent code, the build system is(mostly) irrelevant. We recommend using VSCode as the IDE, that's what I use. Sometimes on a Pi itself, usually on a Linux box. I tend to run builds from the command lin...
by jamesh
Sun Jul 25, 2021 5:26 pm
Forum: Raspberry Pi OS
Topic: Raspberry PI OS 64-bit Release Date
Replies: 79
Views: 40684

Re: Raspberry PI OS 64-bit Release Date

14th August is the projected release date. https://lists.debian.org/debian-devel-announce/2021/07/msg00003.html Some users fail to read already posted information :? https://www.raspberrypi.org/forums/viewtopic.php?f=62&t=316431 ...especially when they end up posting in the wrong post :roll: I ...
by jamesh
Sun Jul 25, 2021 3:51 pm
Forum: General discussion
Topic: AntiVirus solution for Pi - Raspbian OS (armhf architecture) ?
Replies: 22
Views: 817

Re: AntiVirus solution for Pi - Raspbian OS (armhf architecture) ?

Thanks, did found that. To start with, how many users do have "alice" as user? Its not mentioned that "alice" is an example. Second, the idea was to erase user "pi", but it can't. Seems too be needed in some parts. Third, its way too short. It doesn't show what happens...
by jamesh
Sun Jul 25, 2021 3:44 pm
Forum: SDK
Topic: is the arduino support for RPI2040 better then CMAKE ????
Replies: 23
Views: 478

Re: is the arduino support for RPI2040 better then CMAKE ????

In answer to your subject title, no, we don't think so.

As for installation, we have very comprehensive instructions for the three major platforms (Linux, Mac and Windows). Are you having problems with one of them?

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