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Summary of Contents for Quectel M20
- Page 1 Quectel Cellular Engine EVB User Guide M20_EVB_UGD_V1.01...
- Page 2 Document Control ID General Notes Quectel offers this information as a service to its customers, to support application and engineering efforts that use the products designed by Quectel. The information provided is based upon requirements specifically provided to Quectel by the customers. Quectel has not undertaken any independent search for additional relevant information, including any information that may be in the customer’s possession.
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Page 3: Table Of Contents
M20 EVB User Guide Contents 0. Revision history ..........................5 1. Introduction...........................6 1.1. Related documents ......................6 1.2. Safety caution........................6 2. EVB kit introduction........................8 2.1. EVB top and bottom view ....................8 2.2. EVB accessory ........................10 3. Interface application........................11 3.1. Power interface........................11 3.2. - Page 4 M20 EVB User Guide Table Index TABLE 1: RELATED DOCUMENTS.....................6 TABLE 2: PIN OF POWER INTERFACE .................... 11 TABLE 3: PINS OF AUDIO CHANNEL 1 ...................12 TABLE 4: PINS OF AUDIO CHANNEL 2 ...................12 TABLE 5: PINS OF SIM CARD INTERFACE ..................13 TABLE 6: PINS OF SERIAL PORT 0 ....................15...
- Page 5 M20 EVB User Guide Figure Index FIGURE 1: EVB TOP VIEW ........................8 FIGURE 2: EVB BOTTOM VIEW......................9 FIGURE 3: ACCESSORY INTRODUCTION..................10 FIGURE 4: POWER INTERFACE ......................11 FIGURE 5: AUDIO INTERFACE ......................12 FIGURE 6: SIM CARD INTERFACE....................13 FIGURE 7: RF INTERFACE .........................14 FIGURE 8: ANTENNA INSTALLATION.....................14...
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Page 6: Revision History
M20 EVB User Guide 0. Revision history Revision Date Author Description of change 1.00 2009-09-05 Tracy ZHANG Initial 1.01 2009-09-29 Tracy ZHANG Modified chapter number and title of chapter6 M20_EVB_UGD_V1.01 - 5 -... -
Page 7: Introduction
M20 module. Manufactures of the cellular terminal is recommended to pass the following safety information to users, operating personnel. If customer fails to do so, Quectel couldn’t bear any liability for customer’s failure to comply with these precautions. - Page 8 M20 EVB User Guide Cellular terminal or mobile receives and transmits radio frequency energy while switched on. RF interference could occur if it is close to TV set, radio, computer or other electronic equipments. Road safety comes first! Do not use a hand-held cellular terminal or mobile while driving a vehicle, unless it is securely mounted in a holder for hands-free operation.
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Page 9: Evb Kit Introduction
M20 EVB User Guide 2. EVB kit introduction 2.1. EVB top and bottom view Figure 1: EVB top view M20_EVB_UGD_V1.01 - 8 -... - Page 10 G: PWRKEY button H: EMERG_OFF button 5V switch VCHG switch K: Download switch L: Screw holes for fixing the M20 module M: Headset socket N: Handset socket of audio channel 2 O: Handset socket of audio channel 1 Antenna connector fixing hole...
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Page 11: Evb Accessory
M20 EVB User Guide 2.2. EVB accessory Figure 3: Accessory introduction A: 5V DC switching adapter B: USB to UART converter cable C: Antenna D: RF cable E: Headset F: Bolts and nuts for fixing module in EVB M20_EVB_UGD_V1.01 - 10 -... -
Page 12: Interface Application
M20 EVB User Guide 3. Interface application 3.1. Power interface Figure 4: Power interface Table 2: Pin of power interface Signal Description Adapter input 5V/2.5A DC source input M20_EVB_UGD_V1.01 - 11 -... -
Page 13: Audio Interface
M20 EVB User Guide 3.2. Audio interface Figure 5: Audio interface Table 3: Pins of audio channel 1 Signal Description MIC1N Negative microphone input SPK1N Negative receiver output SPK1P Positive receiver output MIC1P Positive microphone input Table 4: Pins of audio channel 2... -
Page 14: Sim Card Interface
M20 EVB User Guide 3.3. SIM card interface Figure 6: SIM card interface Table 5: Pins of SIM card interface Signal Description SIM_DATA SIM card data I/O SIM_CLK SIM card clock SIM_RST SIM card reset SIM_VDD SIM card power output... -
Page 15: Antenna Interface
M20 EVB User Guide 3.4. Antenna interface Figure 7: RF interface Figure 8: Antenna installation M20_EVB_UGD_V1.01 - 14 -... -
Page 16: Serial Ports
M20 EVB User Guide 3.5. Serial ports Figure 9: Serial port 0& Serial port 1 Table 6: Pins of Serial Port 0 Signal Description DCD0 Data carrier detection TXD0 Transmit data RXD0 Receive data DTR0 Data terminal ready RTS0 Request to send... -
Page 17: Switches And Buttons
M20 EVB User Guide 3.6. Switches and buttons Figure 10: Switches and buttons Table 8: Switches and buttons Part Name Description 5V_SW Control power supply from adaptor Control charge to a Li-ion battery by the VCHG module. Place to ON when downloading firmware... -
Page 18: Operating Status Led
M20 EVB User Guide 3.7. Operating status LED Figure 11: Operating status indication LED Table 9: Operating status indication LED Part Name Description On: VBAT ON 5V ON/OFF indicator Off: VBAT OFF Blinking differently indicate GSM_NET status indicator various GSM network status M20_EVB_UGD_V1.01... -
Page 19: Test Points
M20 EVB User Guide 3.8. Test points Figure 12: Test points overview M20_EVB_UGD_V1.01 - 18 -... -
Page 20: J1 Test Points
M20 EVB User Guide 3.8.1 J1 test points Figure 13: J1 test points Table 10: Pins of J1 Signal Description Supply 2.8V voltage for external VDD_EXT circuit RXD1 Receive data PWRKEY Turn on/off the module TXD1 Transmit data Shutdown the power in case of... -
Page 21: J2 Test Points
M20 EVB User Guide 3.8.2 J2 test points Figure 14: J2 test points Table 11: Pins of J2 Signal Description For measurement of the battery DTR0 temperature RXD0 Receive data of Serial Port 0 Reserve TXD0 Transmit data of Serial Port 0... -
Page 22: J3 Test Points
M20 EVB User Guide 3.8.3 J3 test points Figure 15: J3 test points Table 12: Pins of J3 Signal Description RXDDAI Receive digital audio data SIM_PRESENCE SIM card detection TXDDAI Transmit digital audio data NETLIGHT Network status indication TFSDAI Frame synchronization... -
Page 23: Vdd_Ext And Vbat Test Points
M20 EVB User Guide 3.8.4 VDD_EXT and VBAT test points Figure 16: VDD_EXT and VBAT test points M20_EVB_UGD_V1.01 - 22 -... -
Page 24: Evb And Accessories
M20 EVB User Guide 4. EVB and accessories The EVB and its accessories are shown as Figure 17. Figure 17: EVB and accessories Figure 18: Bolts to support EVB M20_EVB_UGD_V1.01 - 23 -... -
Page 25: Illustration
5.1. Power on operations (1) Connect the M20 module to the 50-pin connector in the M20 EVB. Put Switch S1 to ON state. Put Switch S2 to OFF state, and Switch S3 to OFF state. Plug in 5V DC adapter. -
Page 26: Turn Off
M20 EVB User Guide Figure 19: Switches state for firmware upgrade 5.4. Turn off Pressing the PWRKEY button for more than 1 second will turn off the module. 5.5. Emergency off Pressing the EMERG_OFF button for more than 0.1 second will shutdown the module immediately. -
Page 27: Pin Assignment Of B2B Connector
M20 EVB User Guide 6. 50 PIN assignment of B2B connector Figure 20: B2B connector of EVB Table 13: Pin definition of B2B connector PIN NO. PIN NAME PIN NO. PIN NAME SIM_CLK AGND SIM_VDD SPK2P SIM_DATA SPK1P SIM_RST SPK1N... - Page 28 M20 EVB User Guide TXD0 RTS1 RXD1 DTR0 RXD0 RTS0 VRTC Reserve VCHG Reserve VDD_EXT VBAT VBAT VBAT VBAT VBAT M20_EVB_UGD_V1.01 - 27 -...
- Page 29 Shanghai Quectel Wireless Solutions Co., Ltd. Room 801, Building E, No.1618, Yishan Road, Shanghai, China 201103 Tel: +86 21 5108 2965 info@quectel.com Mail:...