Questions tagged [rp2040]
The rp2040 tag has no usage guidance.
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USB data does not work on my PCB [closed]
I've build a PCB based on RP2040 microcontroller. A modified version of PicoDVI board - with added memory chip.
The board works fine, with just one problem - it is not being detected when plugged to a ...
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Custom RP2040 board not working
I have designed a custom RP2040 board referring to the official hardware design guide for RP2040.
When I boot the device in bootsel mode, it does get detected as a USB mass storage device on my host ...
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Cross-compile and run aac-fdk on Cortext M0+ like the RP2040
I am creating a small device that should be able to input sound from a I2S microphone and to compress this sound using AAC LC compression. In another thread I was recommended a Arm Cortex M for this ...
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Connecting SWD on a same pin as an I/O pin
I'm working on a PCB with a specific number of pins. There are 12 pins on the PCB, used by another device to transfer data and communicate with the chip. I have +3V3, GND, RST, pins for I/O, and an ...
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Receive i2S data to RP2040, PIO and DMA from MEMS microphone (SPH0645LM4H-B)
It pretty much seem to work. I have in the PIO been able to generate the clock and word select and the microphone is sending data continuously which can be verified with a logic analyser.
(maybe it ...
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Wiznet W5100 and Realtek RTL8363NB-VB-CG board issue
I've built a PCB connecting one of the ports of the RTL8363NB-VB-CG to the W5100 mimicking a ethernet cable on board, I used a RP2040 a Wiznet 5100S-L and the Realtek RTL8363NB-VB-CG.The problem that ...
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Custom RP2040 PCB Design Check (after I biffed the first one)
I'm looking for some feedback on a circuit board that I've designed for a RP2040-powered macro keypad. I am well aware that I'm in over my head on this one, but I'm excited about this project and am ...
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RP2040 automatic BOOTSEL switching circuit
I enjoy drawing electronic circuits and making them by hand as a hobby. (Not a major, not a job)
While writing a custom board based on the RP2040 chip, I am trying ...
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3
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How to correctly design the USB power and communication interface for an RP2040 PCB?
I am trying to design a board that uses the RP2040, and after several iterations I am stuck. No matter what I try, I cannot get my boards to be recognized by USB. Thus, I also can't program them.
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Is resistor needed for Flash IC?
I am making my first micro controller board with the rp2040. It requires external flash and so I picked the MT25QL128ABA1EW7 since it seems to match all the requirements based on this document: https:/...
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Adding level shifter circuit conflicts with other microcontroller peripherals
I'm working on a synthesizer with multiple functionalities (OLED I2C screen, encoder, audio, midi input, several keys input) on a Xiao RP2040.
I wanted to add a PS2 keyboard input.
RP2040 GPIO are 3....
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145
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RP2040 PCB not communicating over USB
I designed a RP2040 board where the github can be found here https://github.com/peterk268/Pico-Pal/tree/main
I noticed I made a mistake where I accidentally connected my USB C data P1 to N1 and P2 to ...
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On the Raspberry Pi Pico 2040 Pinout Diagram, why are I2C bus pairs overrepresented across pins?
Picture source: Raspberry Pi's official site
RP2040 is a 32-bit dual ARM Cortex-M0+ microcontroller integrated circuit made by Raspberry Pi Ltd. In January 2021, it was released as part of the ...
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Valid usage of OpAmp for current sensing with motor driver
I am working on a custom PCB that can perform position control using 3 DC motors. One of the functionalities that I am trying to implement is stall detection and current limiting. I closely followed ...
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Alternatives for 0402 0.1 uF capacitors in custom RP2040 PCB
I've been designing my own custom RP2040 board, but with only a minimal number of components to do a UART and I2C peripheral, and no USB. However, the design guide https://datasheets.raspberrypi.com/...
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