All notable changes to this project will be documented in this file.
The format is based on Keep a Changelog and this project adheres to Semantic Versioning.
- Add support of Waveshare RP2040-LCD-0.96 board
- Support tag information by ID3v2 tag (RIFF ID3v2) as higher priority than that by LIST chunk
- Also support coverart image from the JPEG bitstream in ID3v2 tag as higher priority than separate JPEG file in local directory
- Add button layout configurations for natural button assignment in FileView and Config mode when buttons are horizontally placed
- Replace transistor with MOS-FET in battery operation circuit (Q2) thanks to conditional pullup
- Self-check if active battery check circuit is populated, not by USE_ACTIVE_BATTERY_CHECK macro definition
- Add workaround for mount fail case of Samsung PRO Plus card when reboot
- Support Hi-Res WAV up to 24bit / 192KHz
- Display bit resolution and sampling frequency
- Support Mono WAV
- Add LCD Config in Config Menu
- Force to reset ConfigParam when format revision changed to avoid mulfunction
- Use submodule for pico_audio_i2s_32b library
- Change pullup register for buttons into conditional pullup for power-on by any HP buttons
- Correct track number display when no TAG information in WAV file
- Don't display empty album art when no JPEG
- Fix resume play freeze when card contents have been changed
- Support pico-sdk 1.5.1 (previously 1.4.0)
- Update FatFs R0.15 (previously R0.14b)
- Remove external pullup resistors for PLUS, MINUS buttons
- Remove external pullup resistors for MISO, MOSI of microsd SPI
- Clean up libraries. pico_fatfs and pico_st7735_80x160 are switched to submodules.
- Change I2C DMA scheme from single buffer to double buffers
- Fix build error of "cannot find -lmy_pico_stdio_usb_headers"
- Delete obsolete CENTER button completely not to disturb other button actions when pullup is not attached. issue#4
- Small fix for fatfs CS handling
- Add gpio_disable_pulls() to SD-Card SPI pins
- Adjust ADC conversion coefficient for static battery check
- Support ChargeMode which allows to remove USB charge selection switch
- No hardware modification needed in Raspberry Pi Pico board
- External circuit around battery charger revised to be compliant to pico-datasheet.pdf
- Use built-in battery voltage check circuit (static battery check) as default
- Increase display charactor length of title, artist and album. add measure to prevent buffer overflow
- Remove GPIO center button and integrated into GP26 ADC level detection to detect wake up trigger
- Initial release