Datenblatt-Suchmaschine für elektronische Bauteile |
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BM83 Datenblatt(PDF) 41 Page - Microchip Technology |
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BM83 Datenblatt(HTML) 41 Page - Microchip Technology |
41 / 74 page 6. Application Information 6.1 Host MCU Interface Over UART The BM83 module supports UART commands, which enable an external MCU to control the BM83 module. The following figure illustrates the UART interface between the BM83 module and an external MCU. An external MCU can control the BM83 module over the UART interface and wake up the module with the MFB and P0_0 pins. Refer to SPKcommandset tool to get a list of functions supported by the BM83 module and how to use the Config Tool for configuring UART and UART command set tool. Figure 6-1. Host MCU Interface Over UART MCU MCU_WAKE UP UART_RX UART_TX BT_WAKE UP P0_0 UART_TXD UART_RXD MFB BM83 Note: For the latest SPKcommandset tool, refer to http://www.microchip.com/BM83. The following figures illustrate the timing sequences of various UART control signals. Figure 6-2. Power ON/OFF Sequence BAT_IN SYS_PWR 1 ms Power- on/initial idle Power-on Power-on Power-off idle MCU state PWR (MFB) BK_OUT/LDO31_VO 400 ms RST_N MCU sends UART command (UART_RX) UART Command MCU sends power- off UART Command Power-on ACK ACK ACK Bluetooth response UART state (UART_TX) any 10 ms 20 ms Keep all Bluetooth and MCU connection to low level 2s > 1s BM83 Application Information © 2019 Microchip Technology Inc. Preliminary Datasheet DS70005402A-page 41 |
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Ähnliche Beschreibung - BM83 |
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