Raspberry Pi RP2040 microcontroller(s)

[alankrantas]

Something wild just appears:

https://www.raspberrypi.org/products/raspberry-pi-pico/ https://www.raspberrypi.org/products/raspberry-pi-pico/specifications/

Dual-core Cortex-M0+ (up to 133 MHz) with UF2 bootloader for 4$. Both Adafruit and Arduino will have their own RP2040 version as well.

[deadprogram]

Also see https://github.com/posborne/cmsis-svd/pull/123

[aykevl]

For anybody wanting to implement support, please take a look here: https://twitter.com/therealjpster/status/1353063981619965956?s=19 It contains important information on the reset sequence.

[rajiv-kanchan]

Just curious to know if anyone's working on this?

[utahcon]

Just curious to know if anyone's working on this?

Also see posborne/cmsis-svd#123

[Nerzal]

I'm happy to help out at this topic, as soon as my pi picos arrive. Ordered 4, but they are currently not deliverable.

[deadprogram]

https://www.cnx-software.com/2021/01/27/a-closer-look-at-raspberry-pi-rp2040-programmable-ios-pio/ looks helpful.

[jeffmhastings]

I've got the blinky1 example running on a raspberry pi pico. Right now the sleep timing is a bit off, and there are a number of things I still need to clean up before I would be ready to submit a PR. I hope to have one ready in the next couple of days though.

[rammanokar]

any progress on this..?

[kurtmc]

I just received a couple of these boards and I am keen to help out getting tinygo working. I am not really familiar with the process of adding new boards but I am happy to checkout forks and test them.

@jeffmhastings I have checked out your branch and managed to get the blinky example going, nice work!

I have noticed that putchar is not implemented yet (https://github.com/jeffmhastings/tinygo/blob/rp2040/src/runtime/runtime_rp2040.go#L144) I assume this is important for getting the println function to work. I had a quick go at implementing it but I am pretty new to micro controllers and it would probably be easier for someone who knows what they are doing :joy:

[kenbell]

I've got a couple (pico and an Adafruit RP2040 feather) - will take a look if no-one gets there first. Waiting on FedEx to deliver me a J-Link though. In my experience SWD and a logic analyzer makes this stuff so much easier.

[deadprogram]

Is anyone actively working on this? :crossed_fingers:

[rythmkraze]

Ive been working on a minimal integration, just enough to run the blinky1 example, based on the Pico C SDK.

[deadprogram]

@rythmkraze I assume you have seen the @jeffmhastings fork?

[rythmkraze]

@deadprogram Yes I have.

[lexfrei]

Any news?

[bartekpacia]

I second @lexfrei, where can we expect more info?😄

[soypat]

As far as I know there are two attempts at bringing RP2040 support to TinyGo. Both seem abandoned and have similar amount of progress

• https://github.com/jeffmhastings/tinygo/tree/rp2040 (last commit February)
• https://github.com/rythmkraze/tinygo/tree/pico (last commit April)

To anyone else who embarks on this apparently perilous journey, godspeed.

[rythmkraze]

branch pico has been updated. Contains minimal implementation to get blinky1 example working. Only supports the machine.Pin API and that too in PinOutput mode.

[lexfrei]

@rythmkraze is there any ETA? No pressure, just an interest.

[aykevl]

@rythmkraze can you please make a PR with that branch? That makes it a lot easier to review the changes for eventual inclusion. On a first glance, it looks pretty good although it needs a few changes to match the style of the rest of the TinyGo targets.

[a-h]

I noticed that the latest release has support, and it was added to the README.

https://github.com/tinygo-org/tinygo/releases/tag/v0.19.0

Is this... closed?

[deadprogram]

Yes, I think we can close this issue now. Thank you everyone who helped get this added!