Re: Raspberry Pi Pico a nice board for NuttX

2021-01-27 Thread Matias N.
There's an SVD file, so no need to use any other headers: https://github.com/raspberrypi/pico-sdk/blob/master/src/rp2040/hardware_regs/rp2040.svd We discussed in the past about the license that would apply to a header auto-generated from the SVD but I'm not sure if we arrived at any conclusion

Re: Raspberry Pi Pico a nice board for NuttX

2021-01-27 Thread Justin Mclean
Hi, > Copyright © 2020 Raspberry Pi (Trading) Ltd. The documentation of the RP2040 > microcontroller is licensed under a Creative Commons > Attribution-NoDerivatives 4.0 International (CC BY-ND). Portions Copyright © > 2019 Synopsys, Inc. All rights reserved. Used with permission. Synopsys & >

Re: Raspberry Pi Pico a nice board for NuttX

2021-01-23 Thread Arie de Muijnck
On 2021-01-22 23:38, Gregory Nutt wrote: The Raspberry Foundation created their own microcontroller based on ARM Cortex M0+ with 1MB Flash and 256KB RAM. I wonder how the performance is with two cores running from QSPI with no instruction cache? There is no data cache either.  This could be

Re: Raspberry Pi Pico a nice board for NuttX

2021-01-22 Thread Brennan Ashton
On Fri, Jan 22, 2021, 3:54 PM Matias N. wrote: > > > Is there any easy way to get all of the register definition header files > > in place (with Apache 2 headers)? > > If there's an SVD file somewhere, you can use this: > > https://gitlab.com/nuttx_projects/svdgen > > I've used it many times and

Re: Raspberry Pi Pico a nice board for NuttX

2021-01-22 Thread Matias N.
> Is there any easy way to get all of the register definition header files > in place (with Apache 2 headers)? If there's an SVD file somewhere, you can use this: https://gitlab.com/nuttx_projects/svdgen I've used it many times and requires minimal tweaking afterwards. Best, Matias

Re: Raspberry Pi Pico a nice board for NuttX

2021-01-22 Thread Gregory Nutt
The Raspberry Foundation created their own microcontroller based on ARM Cortex M0+ with 1MB Flash and 256KB RAM. I wonder how the performance is with two cores running from QSPI with no instruction cache? There is no data cache either.  This could be an issue for SMP, at least if the same

Re: Raspberry Pi Pico a nice board for NuttX

2021-01-21 Thread Alan Carvalho de Assis
Thank you Arie, There is also an example to implement a bitbanging DUAL display HDMI: https://github.com/Wren6991/picodvi The MCU datasheet is here: https://datasheets.raspberrypi.org/rp2040/rp2040_datasheet.pdf BR, Alan On 1/21/21, Arie de Muijnck wrote: > Yes, I saw it and immediately ord

Raspberry Pi Pico a nice board for NuttX

2021-01-21 Thread Alan Carvalho de Assis
Hi Everyone, I think many of you already saw this news! The Raspberry Foundation created their own microcontroller based on ARM Cortex M0+ with 1MB Flash and 256KB RAM. They also add support to OpenOCD (not in mainline yet) see: https://datasheets.raspberrypi.org/pico/getting_started_with_pico.