pico-feedback
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raspberrypi
There seems to be a significant amount of noise on an SPI circuit of any significant size, is there a way to pull down the SPI MOSI pin?
Hi. make.exe is no longer included. The guide about compiling no longer works because make is no longer present on tools directory. Was this on purpuse? Can you update the...
When starting (or restarting) a PIO state machine, is there an **_architecturally guaranteed_** starting value for the `X` and `Y` registers? Alternatively, are those registers architecturally guaranteed to retain the...
VREG_AND_CHIP_RESET: CHIP_RESET register does not seem to change when Pico (RP2040) is reset using PicoProbe. Is this correct behavior? Datasheet (2.12.7. Source of Last Reset) seems to give impression, that...
The datasheet states: > If the user already has an accurate clock source then it is possible to drive an external clock directly into XIN (aka XI), > and disable...
The program loading and debugging procedure for `-DPICO_NO_FLASH=1` compilation option is not documented (gdb / openocd). I went through some trial and error steps to make it work. It would...
This is a rather convoluted issue, but it is 100% reproducible. The requirements are a 2GB microSD card, and this: https://www.waveshare.com/pico-restouch-lcd-2.8.htm, with the SD card switched to "SDIO "wiring on...
I am no CMake expert, and indeed don't know what files are needed or what goes in them. I can, of course, push the buttons which is I guess what...
I've got massive problems getting core1 to work. I assume there is a problem using 'sleep_ms' on core1. Code: ``` #include #include #include "pico/stdlib.h" #include "pico/multicore.h" #include "hardware/gpio.h" void core1_entry()...
According to section 2.3.2 in the RP2040 Datasheet: > a lower-priority interrupt can be preempted by a higher-priority interrupt > for interrupts with the same dynamic priority level, the lower-numbered...
