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usb_switcher/board/libs/library/datasheet/BM20/README.md
Moritz Martinius 376a9bee91 Moved board-related stuff in board subdirectory
2020-10-25 14:27:45 +01:00

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documents

BM20 module documents: https://www.microchip.com/wwwproducts/en/BM20

BM20 evaluation board documents (Schematics): https://www.microchip.com/DevelopmentTools/ProductDetails/PartNO/BM-20-EVB

AVRCP 1.5 specification: https://www.bluetooth.com/specifications/profiles-overview/

Spreadsheet with serial commands and events is located inside http://ww1.microchip.com/downloads/en/DeviceDoc/IS2020_203_Tools.zip -> UART_tool -> UART_CommandSet_v147_20140520.xlsx

AT commnads for accesing phonebook (for example) are described in UIS2020_203_Tools.zip -> ART_tool/ETS_AT_CMD.pdf

After removind SimpleIO-UM.dll inside UART_tool directory, serial example tool '5502UARTCommandSetTool v001.000.exe' can by used with any usb to serial converter.

arduino library

https://github.com/tomaskovacik/IS2020

my eeprom setting

BM20.ipf file contains eeprom patch with settings:

  • HFP/HSP profile
  • A2DP profile
  • AVRCP controler and target profile
  • SPP profile
  • now buttons
  • line in (P3_0 detection)
  • power on directly
  • serial interface at 115200b
  • simple pairing enabled ....

load it with ui tool to see