pico-feedback
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raspberrypi
Originally raised on Discord. There is generally a 1:1 relationship between the syntax inside `@asm_pio` decorators in MicroPython, and the instructions listed in the datasheet, but there are some wrinkles...
Based on our reading of the RP2350 datasheet, we believe that any Exclusive Load/Stores to the PSRAM region will always fail (thus any code with an Exclusive Load/Store loop, e.g....
https://datasheets.raspberrypi.com/rp2350/hardware-design-with-rp2350.pdf Search for: capcitors On page 7 there is a TBD on the inductor, still valid? Page 9 " These resistors, R2 and R6" should be "These resistors, **R1** and...
I am using the Raspberry Pi Pico board's native USB Host hardware to implement a USB MIDI Host driver for TinyUSB in the [usb_midi_host](https://github.com/rppicomidi/usb_midi_host) project. The driver uses the RP2040's...
Figures describing SPI Motorola format, eg. Figure 95:  has double `SSPRXD` and missing `SSPTXD`. Compare ith: https://developer.arm.com/documentation/ddi0194/h/functional-overview/primecell-ssp-operation/motorola-spi-format-with-spo-1--sph-1?lang=en
Many thanks for providing Fritzing Part file for the Raspberry Pico W at https://datasheets.raspberrypi.com/picow/PicoW-Fritzing.fzpz Could someone please also provide the corresponding Fritzing file for the Raspberry Pico WH ?
I wanted my Pico 2’s default architecture to be risc-v, so set CRIT1_BOOT_ARCH (`picotool opt set crit1.boot_arch 1`). The chip now runs at one third the nominal rate (50 MHz...
The Pico C/C++ SDK PDF v3.0 is missing the assembler syntax for the `wait jmppin` variant. Thankfully it's documented in the RP2350 datasheet, but the SDK doc should get it...
The datasheet doesn't really specify how LPCK should be connected. Is it a CMOS clock or can it drive a crystal? If it's a crystal, what load capacitance is expected?...
This came up in the SDK forum, where @kilograham asked for a pico-feedback issue, so that it can be better documented. https://forums.raspberrypi.com/viewtopic.php?t=376508&sid=19c9d2fc64cb0e6ba4d4cac25787e270 Prior to version 2.0.0, it was sufficient to...
