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View Code? Open in Web Editor NEWFirmware for the MCH2022 badge: RP2040 co-processor
Home Page: https://badge.team
License: Other
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mch2022-firmware-rp2040's Issues
RP2040 firmware: WebUSB support
Add instructions for building & flashing to README
- Apparently the RPi Pico SDK is required?
- How to build & flash?
Infrared transmitter: emulate remote of lights chosen by team deco
Prevent accidentally flashing over launcher firmware
WebUSB doesn't work properly when compiling with pico-sdk 1.5.0
When compiled with SDK 1.3.1 the webusb connection works correctly. When compiling with pico-sdk 1.5.0 the webusb interface loses data, resulting in communication errors and timeouts.
USB CDC sends corrupted data in specifc circumstances
In uart_task.c we use tud_cdc_n_read to read from the USB_CDC_ESP32. This function returns a length and places data into a buffer.
When connecting a terminal program (tested with screen) the tud_cdc_n_read returns garbage data, specifically some data that has previously been sent by the ESP32 to the RP2040, so it's data that was in the transmit buffer of the CDC interface. The tud_cdc_n_read actively writes to our buffer so this appears to be an SDK bug.
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