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I like the RP2040

dgroshev.com

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Re: I like the RP2040

#321

Post by casept »

selfmodruntime wrote: post #237
antirez wrote: post #15

I switched from ESP32 to the RP2040 because it's a much more reliable and documented device. My only concern right now with the RP2040 is that there are many ESP32 models with SPIRAM but it's not so simple to find a SPIRAM equipped RP2040 board. To be honest, given that the C development environment of the RP2040 is so good, you can make good use of the memory, but when one wants to develop a large MicroPython projec…

I heavily disagree. I‘ve been working with the Espressif ecosystem for a couple of months now and it‘s the best documented microcontroller platform out there.

Only if you use their SDK. Quite a few parts of the chip lack actual register-level documentation, not so on the 2040.

Re: I like the RP2040

#322

Post by 127 »

dragontamer wrote: post #229
immibis wrote: post #223

Earlier quoted context omitted.

You can't run Linux on DRAM. You need a CPU.

You can't run anything on an RP2040. There's no Flash or code space. RP2040 sits at an awkward placement. It requires external parts, but low end SPI parts and not the nicer proper RAM like DDR3L or the like. ------ My point is that if you have a design that fundamentally requires external parts like the RP2040, the accurate comparison is against MPUs. Chips that are specifically designed to work with powerful and co…

Turns out you can actually run quite a lot with dual core CPU clocked at 250MHz. You can also use part of the flash as file system, but that's not quite as straight forward.

Re: I like the RP2040

#323

Post by nsteel »

triyambakam wrote: post #315
konstantinua00 wrote: post #305

Earlier quoted context omitted.

he said?

I was thinking about this. I think there is a trend in English to use they even when the gender is known to indicate a kind of distance from that person. E.g. my guess about the parent poster is that they (he or she in this case, a different usage) may not be very close to the "silicon guy"

I don't think this is the case. Isn't it that "guy" is essentially gender neutral in this context? In the same way you can reasonably say "hi guys" to greet people of any gender.

"Silicon person", "silicon gal" etc would be weirder phrasing. "Silicon specialist" maybe but I don't personally think any of this merits discussion.

Re: I like the RP2040

#324

Post by zik »

g15jv2dp wrote: post #227
milesvp wrote: post #160

Earlier quoted context omitted.

FYI. In the embedded space, peripherals refer to the chip's built in capabilities. Typically there is a peripheral that handles SPI, a peripheral that handles I2C, a peripheral that handles USART. There might be a peripheral that handles USB, or I2S, or any number of different abilities. It's either transistors or microcode on more sophisticated MCUs that allows these peripherals, and not every pin is connected to ev…

Except it's not at all how GP used the word: > From Wifi/Bluetooth Antenna, LI Battery Controller, Ethernet whatever, Display or Camera Connector - You choose. None of those are in-chip peripherals. Besides, the RP2040 comes with a lot of peripherals too. Not as much as an ESP32 by a wide margin, but still.

The ESP32 modules are available with or without the antenna built in, and the chips have an on-chip ethernet MAC peripheral, display support via on-chip LCD, I2C, or SPI peripherals, and camera via the on-chip CAM peripheral.

Not all versions have all these features. You can pick one based on the features you need.

Re: I like the RP2040

#325

Post by orphea »

makapuf wrote: post #317
dragontamer wrote: post #229

Earlier quoted context omitted.

You can't run anything on an RP2040. There's no Flash or code space. RP2040 sits at an awkward placement. It requires external parts, but low end SPI parts and not the nicer proper RAM like DDR3L or the like. ------ My point is that if you have a design that fundamentally requires external parts like the RP2040, the accurate comparison is against MPUs. Chips that are specifically designed to work with powerful and co…

ESP32 chips also need external SPI Flash, and many STM32 have little flash and QuadSPI with execute from external flash capabilities, so I don't see this as a specificity of RP2040.

Some ESP32 chips have in-package flash, e.g. ESP32-C6FH4.

Re: I like the RP2040

#326

Post by teytra »

triyambakam wrote: post #315
konstantinua00 wrote: post #305

Earlier quoted context omitted.

he said?

I was thinking about this. I think there is a trend in English to use they even when the gender is known to indicate a kind of distance from that person. E.g. my guess about the parent poster is that they (he or she in this case, a different usage) may not be very close to the "silicon guy"

This confuse us foreigners trying to use the English language even more than it must confuse regular english speakers.

Not only did you (you guys, y'all, plural you, whatever...) mix up ye with you, using only the object form, but also started using it for thou and thee. Also, it was thy/thine not yours in the singular form.

I suggest you "fix" your language by reintroducing these words, they (plural they) are not completely lost yet (ref: dialects and the Bible).

https://langeek.co/en/grammar/course/8/archaic-pronouns#revi...

Re: I like the RP2040

#327

Post by orphea »

antirez wrote: post #261
mardifoufs wrote: post #243

Earlier quoted context omitted.

Did you use esp-idf? Or the Arduino libs?

ESP-IDF, Arduino IDE is untouchable for serious stuff IMHO.

> Arduino IDE is untouchable for serious stuff

Yes, but AFAIK you don't have to use Arduino IDE for Arduino stuff? e.g. there is PlatformIO.

Re: I like the RP2040

#328

Post by lioeters »

triyambakam wrote: post #315
konstantinua00 wrote: post #305

Earlier quoted context omitted.

he said?

I was thinking about this. I think there is a trend in English to use they even when the gender is known to indicate a kind of distance from that person. E.g. my guess about the parent poster is that they (he or she in this case, a different usage) may not be very close to the "silicon guy"

I agree with this take. How the word "they" was used in the sentence implies a kind of "anonymous other", especially when they're a part of a group like a company. It could have been any member of that group, male or female. And there's a lack of individuality or familiarity, it doesn't matter so much the exact person.

Re: I like the RP2040

#329

Post by trealira »

nsteel wrote: post #323
triyambakam wrote: post #315

Earlier quoted context omitted.

I was thinking about this. I think there is a trend in English to use they even when the gender is known to indicate a kind of distance from that person. E.g. my guess about the parent poster is that they (he or she in this case, a different usage) may not be very close to the "silicon guy"

I don't think this is the case. Isn't it that "guy" is essentially gender neutral in this context? In the same way you can reasonably say "hi guys" to greet people of any gender. "Silicon person", "silicon gal" etc would be weirder phrasing. "Silicon specialist" maybe but I don't personally think any of this merits discussion.

Maybe it's used neutrally in greetings (e.g. "Hi guys,") but when referring to someone specific, if you say they're a guy, it will generally be assumed that person is a man.

Re: I like the RP2040

#330

Post by Otek »

So how can one start with doing something useful with this sort of things. Let’s say I have backend experience, some spare cash and time to try to get into embedded
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