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Summary of Contents for Quectel BG770A-GL TE-A
- Page 1 BG770A-GL TE-A User Guide LPWA Module Series Version: 1.0 Date: 2021-12-29 Status: Released...
- Page 2 LPWA Module Series At Quectel, our aim is to provide timely and comprehensive services to our customers. If you require any assistance, please contact our headquarters: Quectel Wireless Solutions Co., Ltd. Building 5, Shanghai Business Park Phase III (Area B), No.1016 Tianlin Road, Minhang District, Shanghai...
- Page 3 Except as otherwise set forth herein, nothing in this document shall be construed as conferring any rights to use any trademark, trade name or name, abbreviation, or counterfeit product thereof owned by Quectel or any third party in advertising, publicity, or other aspects.
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Page 4: Safety Information
Manufacturers of the cellular terminal should distribute the following safety precautions to users and operating personnel, and incorporate them into all product manuals. Otherwise, Quectel assumes no liability for customer failure to comply with these precautions. -
Page 5: About The Document
LPWA Module Series About the Document Revision History Version Date Author Description 2021-12-22 Lex LI Creation of the document 2021-12-29 Lex LI First official release BG770A-GL_TE-A_User_Guide 4 / 23... -
Page 6: Table Of Contents
LPWA Module Series Contents Safety Information ............................3 About the Document ........................... 4 Contents ............................... 5 Table Index ..............................6 Figure Index ..............................7 Introduction ............................8 Product Concept ..........................9 2.1. Top and Bottom Views ......................9 2.2. Component & Interface Introduction ..................10 Application Interfaces ........................ - Page 7 LPWA Module Series Table Index Table 1: Components and Interfaces of BG770A-GL TE-A ............... 10 Table 2: Pin Definition of the BTB1 Connector ..................13 Table 3: Pin Definition of Test Points ......................16 Table 4: Related Documents ........................22 Table 5: Terms and Abbreviations ......................
- Page 8 Figure 5: BTB Connectors .......................... 13 Figure 6: Test Points ........................... 16 Figure 7: Connection Between BG770A-GL TE-A, UMTS<E EVB and Antennas ........ 18 Figure 8: Main UART Communication ....................... 20 Figure 9: Emergency Download Mode Test Points ..................21...
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Page 9: Introduction
LPWA Module Series Introduction This user guide describes the application details of BG770A-GL TE-A, which is an assistant tool for engineers to develop applications and test basic functionalities with Quectel BG770A-GL. BG770A-GL TE-A is intended to be used in combination with UMTS<E EVB. For detailed description of UMTS<E EVB, see document [1]. -
Page 10: Product Concept
LPWA Module Series Product Concept 2.1. Top and Bottom Views Figure 1: BG770A-GL TE-A Top View Figure 2: BG770A-GL TE-A Bottom View BG770A-GL_TE-A_User_Guide 9 / 23... -
Page 11: Component & Interface Introduction
LPWA Module Series 2.2. Component & Interface Introduction Detailed information about components and interfaces of BG770A-GL TE-A is listed below. Table 1: Components and Interfaces of BG770A-GL TE-A Component/Interface Description Connects to auxiliary UART through CP2102N USB to UART bridge UART_AUX with the highest baud rate at 3 Mbps. -
Page 12: Application Interfaces
LPWA Module Series Application Interfaces 3.1. UART Interfaces Figure 3: UART Interface UART_DBG is for firmware upgrading, software debugging, log outputting and NMEA messages outputting. UART_AUX is used for RF calibration and log outputting. Install the USB to UART Bridge VCP Driver before you use the UART interfaces. Access Silicon Labs’ official website from here CP2102N_QFN28 to acquire the installation package. -
Page 13: Btb Connector
LPWA Module Series Figure 4: CP2102N Driver Installation 3.2. BTB Connector The BTB connector is used to connect TE-A to UMTS<E EVB. Most module pins are connected to BTB1 connector; some pins are connected directly to TE-A’s peripheral circuit or test points; and no pins are connected to BTB2 connector. - Page 14 LPWA Module Series ⚫ VDD_EXT ⚫ USIM Figure 5: BTB Connectors Table 2: Pin Definition of the BTB1 Connector Pin No. Pin Name Pin No. Pin Name VBAT VBAT VBAT VBAT VBAT AP_READY W_DISABLE# USB_VBUS BG770A-GL_TE-A_User_Guide 13 / 23...
- Page 15 LPWA Module Series MAIN_RXD USB_DM MAIN_TXD USB_DP MAIN_DTR MAIN_RTS MAIN_CTS MAIN_DCD MAIN_RI GPIO4 VDD_EXT NET_STATUS GPIO3 STATUS_N GPIO2 GPIO5 GPIO7 ADC0 ADC1 PWRKEY RESET_N I2C_SCL I2C_SDA PCM_CLK BG770A-GL_TE-A_User_Guide 14 / 23...
- Page 16 LPWA Module Series PCM_SYNC PCM_OUT PCM_IN USIM_DET USIM_VDD USIM_DATA USIM_CLK USIM_RST USIM_GND BG770A-GL_TE-A_User_Guide 15 / 23...
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Page 17: Test Points
LPWA Module Series 3.3. Test Points 21 24 22 25 18 19 15 16 Figure 6: Test Points Table 3: Pin Definition of Test Points Pin Name Description GPIO6 General-purpose input/output DTE request to send signal from DCE (Connects to DTE’s RTS) AUX_RTS AUX_RXD Auxiliary UART receiver... - Page 18 LPWA Module Series modes DTE request to send signal from DCE (Connects to DTE’s CTS) DBG_CTS DBG_TXD Debug UART transmitter DTE request to send signal from DCE (Connects to DTE’s RTS) DBG_RTS DBG_RXD Debug UART receiver USB_DM USB differential data (-) USB_DP USB differential data (+) USB_VBUS...
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Page 19: Operating Procedures
LPWA Module Series Operating Procedures 4.1. Physical Assembly The connection between BG770A-GL TE-A, UMTS<E EVB and main/GNSS antenna is presented below: Figure 7: Connection Between BG770A-GL TE-A, UMTS<E EVB and Antennas BG770A-GL_TE-A_User_Guide 18 / 23... -
Page 20: Turning On/Off
2. Connect the debug UART of BG770A-GL TE-A to PC’s USB port with the micro-USB cable. 3. Switch the PON_TRIG switch on BG770A-GL TE-A to “1V8” state (refer to figure below). Please note that if debug UART is not connected and the PON_TRIG switch is not switched to “1V8”, then the main UART will be inaccessible. -
Page 21: Firmware Upgrading
LPWA Module Series Figure 8: Main UART Communication 4.4. Firmware Upgrading If the module can be turned on normally, you can directly upgrade the firmware through the debug UART on the TE-A. If the module cannot be turned on normally, you can refer to the following steps to enter the recovery mode and upgrade the firmware forcibly. - Page 22 LPWA Module Series Figure 9: Emergency Download Mode Test Points BG770A-GL_TE-A_User_Guide 21 / 23...
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Page 23: Appendix References
LPWA Module Series Appendix References Table 4: Related Documents Document Name [1] Quectel_UMTS<E_EVB_User_Guide [2] Quectel_BG770A-GL_Hardware_Design [3] Quectel_BG770A-GL&BG95xA-GL_AT_Commands_Manual Table 5: Terms and Abbreviations Abbreviation Description Analog-to-Digital Converter Board-to-Board Clock Data Communications Equipment Digital Input Data Terminal Equipment e-I-DRX extended Idle Discontinuous Reception Evaluation Board Ground GNSS... - Page 24 LPWA Module Series Low-dropout Regulator Light Emitting Diode Long-Term Evolution NMEA National Marine Electronics Association) 0183 Interface Standard Personal Computer Power Saving Mode Radio Frequency Request to Send Receive Data (Pin) Serial Clock Serial Data Line Transmit Data (Pin) UART Universal Asynchronous Receiver/Transmitter Universal Serial Bus UMTS...
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