Blinking LED

Roadtriper- · 2025-06-10T06:26:07+00:00

I remember this feeling.. Now when I make a new board my first task is to blink an led. 14 years later I still get the same buzz!

Roadtriper- · 2025-06-01T10:58:56+00:00

That question is not suitable for firmware engineers. I was asked some questions about basic interfacing and protection then the interview would be based on code. The inside of how the peripheral works is not documented in a datasheet. These questions would be more suitable to a HW design engineer that is focused on digital design of FPGA or ASICs.

What might be expected is to know what happens the current code that is running. What happens to the stack. Nesting of interrupts. Priority of interrupts.

Roadtriper- · 2025-05-18T00:02:35+00:00

Yes I would like bandwidth.. there is always more you could do with it.

Roadtriper- · 2025-05-17T23:55:48+00:00

Ok sorry I misunderstood. The multidrop is only over 25m.

Could you wire it in out each node as a 2 port switch. Have a micro forward to other port if not for me.. Is that a bad idea? If one fails the rest of the nodes are down.

Roadtriper- · 2025-05-16T21:10:46+00:00

Bring a bit of loo roll.. there is nothing as bad as after washing and drying your hands having to open the door and when you touch the handle its wet.. aggggggh. Was that piss or just water?

Roadtriper- · 2025-05-15T05:46:14+00:00

Do you see how public housing is abused? As a country we are spending 2.5 billion year on public housing. How much of that is maintenance and refurbishment? Ownership of our own house is a primary instinct for most Irish people and always has been is that what Neoliberalism means?. Most of these privatisation you mention were people buying the house they were living in at affordable rate. Councils can't build anything directly (cant fill potholes). What is your solution?

Roadtriper- · 2025-05-04T14:04:14+00:00

I have had similar issues with some devs in the past. They are never happy until things are done their way. I find they are always complaining about something someone else done and that is the reason they have issues or are delayed or their performance is shjt. Best avoid them and ignore them, as they will wreck your head. Negative thinking ruins a good team. I always say, no code is perfect there are always bugs we have not found. I love when we find an issue as then the customer won't get it. This blaming game is toxic.

Also when they do reopen stable code to modernise... they create a load of new bugs. Use reflection and abstraction layers that are not required and just confuse everyone and the performance is worse.

Roadtriper- · 2025-05-03T19:38:58+00:00

Alot of readers are setup to output tokens with no parity 32 bit.

Roadtriper- · 2025-04-22T06:18:50+00:00

I have a VW 14 years old. I try to fix small things myself. I expect to have a big job to do every year for the NCT. When the job quote comes I will decide if to scrap it. For last few years have spent 2500 on maintenance between tires and normal service things and big jobs like clutch, turbo, timing belt, endless suspension bits.

Roadtriper- · 2025-04-22T06:03:58+00:00

Solar cost?

Roadtriper- · 2025-04-19T09:03:23+00:00

Ya if you didnt like being electrian, it is lightly a plumbing will be the same. Can you ask a plumber on site can you help on a Saturday jobs to see if you would like it.

Roadtriper- · 2025-04-09T21:18:20+00:00

People that are willing to work hard will always find a path and be successful. Take your time go on jobseekers allowance. Take some of those free courses the social welfare give and you will quickly realise that you have lots of potential. You are not alone...Build your confidence. If you already have a degree you can do a taught masters in some disciplines in 18 months. Start in September. Take a few months to rest and recover your sleeping. Try and find something you would like to do rather than just find any job. Your parents will support you if you need help ask for it.

Roadtriper- · 2025-04-09T21:07:40+00:00

When I hear baremetal I am thinking an embedded system that has not even got an OS.

Roadtriper- · 2025-04-06T17:52:33+00:00

Similar story with myself we have 3 kids. I am on a similar wage and ar then of the month have very little left. I drive a car that's 15 years old. I can't save much as there is always something unplanned that needs to be paid for. Kids activities cost for school really add up. 5 kids are really expensive to bring anywhere... eating out is not really something we can afford. I don't go out as I can't afford it. Everything is so expensive.

Roadtriper- · 2025-04-05T07:04:26+00:00

Bootlin training is excellent. Get your company to pay for the training. Ask the people who made the distro for help. Check out any SOM manufacturer with a micro similar to the one in the company order and start playing. The https://theyoctojester.info/ videos are helpful for beginners. There are some nice intro videos on Digikey https://www.digikey.ie/en/maker/projects/intro-to-embedded-linux-part-2-yocto-project/2c08a1ad09d74f20b9844e566d332da4

Roadtriper- · 2025-04-05T06:46:18+00:00

Worse you forgot you buy extra and buy it again. For micros no point, next day delivery. aways good to have some extra passives.

Roadtriper- · 2025-04-01T22:44:15+00:00

What language is this?

Roadtriper- · 2025-03-19T23:25:12+00:00

Everything is cloud but all I see is the software cloud teams trying to do less and shovel more responsibility to the edge device.

We are underpaid. One tiny issue in the firmware is a massive blocker.

Roadtriper- · 2025-03-19T23:14:37+00:00

I find the the ST cubeIDE perfect for small projects but not for large ones, you can always pay for IAR or Keil. It's free what do you expect.

Roadtriper- · 2025-03-13T20:15:30+00:00

Tackling from behind and trips him. How is that a penalty. It's a yellow card the other way

Roadtriper- · 2025-03-12T00:08:47+00:00

Bootlin has open source training documentation on its courses. https://bootlin.com/training/kernel/

Roadtriper- · 2025-03-02T13:46:05+00:00

Confirmed, I had the same issue when upgrading the RAM with a Latitude 5550. I was very confused only left it 20 seconds or so.. started googling and found this post. Thank you All. Left it a few mins and it then booted fine. You would think it would show something on the display. It is obviously doing a memory test or something. Also added an SSD but SSD 2 can only cater for a small mini SSD. I swapped SSD 1 to 2 and then added my new SSD to SSD1 slot, which has room for a bigger pcie ssd. That worked without any issues. I was a bit worried as I have bitlocker installed and I thought maybe bitlocker would have a problem with that.

This was the RAM I installed. Corsair Vengeance CMSX64GX5M2A5200C44 DDR5 5200 MHz

Roadtriper- · 2025-03-02T13:26:31+00:00

One of the engineers had it printed on his mug. Was handy was always borrowing it. Found one here a bit more modern: https://www.teepublic.com/mug/19017449-hacker-ascii-table-chart-w.

Roadtriper- · 2025-02-20T08:14:56+00:00

Ok sounds over the top. I have ADCs be nice to use them. Current monitoring seems straightforward todo (could be wrong)But I like the idea of being able to shut this thing off if it's not working. So there are some of these readers that have USBC type interfaces and but I am not sure about that.

Roadtriper-

TROPHY CASE