Quectel_GNSS_FOTA_User_Guide_V1.0(Quectel_GNSS_FOTA_User_Guide

GNSS FOTA User Guide GNSS Module Series Rev. GNSS_FOTA_User_Guide_V1.0 Date: 2018-08-23 Status: Released www.quectel.com

GNSS Module Series GNSS FOTA User Guide Our aim is to provide customers with timely and comprehensive service. For any assistance, please contact our company headquarters: Quectel Wireless Solutions Co., Ltd. 7th Floor, Hongye Building, No.1801 Hongmei Road, Xuhui District, Shanghai 200233, China Tel: +86 21 5108 6236 Email: info@quectel.com Or our local office. For more information, please visit: http://www.quectel.com/support/sales.htm For technical support, or to report documentation errors, please visit: http://www.quectel.com/support/technical.htm Or email to: support@quectel.com GENERAL NOTES QUECTEL OFFERS THE INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION PROVIDED IS BASED UPON CUSTOMERS’ REQUIREMENTS. QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE. QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR RELIANCE UPON THE INFORMATION. ALL INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. COPYRIGHT THE INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF QUECTEL WIRELESS SOLUTIONS CO., LTD. TRANSMITTING, REPRODUCTION, DISSEMINATION AND EDITING OF THIS DOCUMENT AS WELL AS UTILIZATION OF THE CONTENT ARE FORBIDDEN WITHOUT PERMISSION. OFFENDERS WILL BE HELD LIABLE FOR PAYMENT OF DAMAGES. ALL RIGHTS ARE RESERVED IN THE EVENT OF A PATENT GRANT OR REGISTRATION OF A UTILITY MODEL OR DESIGN. Copyright © Quectel Wireless Solutions Co., Ltd. 2018. All rights reserved. GNSS_FOTA_User_Guide 1 / 12

GNSS Module Series GNSS FOTA User Guide About the Document History Revision Date Author Description 1.0 2018-08-23 Jenn XIANG Initial GNSS_FOTA_User_Guide 2 / 12

GNSS Module Series GNSS FOTA User Guide Contents About the Document .................................................................................................................................. 2 Contents ...................................................................................................................................................... 3 Figure Index ................................................................................................................................................ 4 1 Introduction ......................................................................................................................................... 5 1.1. Introduction to Download Agent ................................................................................................. 5 2 Firmware Upgrade Procedures ......................................................................................................... 6 2.1. CMD_Start (Start Upgrade Procedure) ...................................................................................... 6 2.2. CMD_Write (Write DA to SRAM) ............................................................................................... 7 2.3. CMD_Jump (Jump to DA Start Address) ................................................................................... 8 2.4. CMD_Sync (Report Flash Information)...................................................................................... 8 2.5. CMD_SetMemBlock (Set Memory Block) ................................................................................ 10 2.6. CMD_WriteData (Write BIN File to Target Side Flash) ............................................................ 10 2.7. CMD_Finish (Finish Upgrade Procedure) ................................................................................ 11 3 Appendix A References .................................................................................................................... 12 GNSS_FOTA_User_Guide 3 / 12

GNSS Module Series GNSS FOTA User Guide Figure Index FIGURE 1: FIRMWARE UPDATE CONNECTION .............................................................................................. 5 FIGURE 2: FLOW OF CMD_START ................................................................................................................... 6 FIGURE 3: FLOW OF CMD_WRITE ................................................................................................................... 7 FIGURE 4: FLOW OF CMD_JUMP ..................................................................................................................... 8 FIGURE 5: FLOW OF CMD_SYNC .................................................................................................................... 9 FIGURE 6: FLOW OF CMD_ SETMEMBLOCK ................................................................................................ 10 FIGURE 7: FLOW OF CMD_ WRITEDATA ........................................................................................................ 11 FIGURE 8: FLOW OF CMD_FINISH .................................................................................................................. 11 GNSS_FOTA_User_Guide 4 / 12

GNSS Module Series GNSS FOTA User Guide 1 Introduction Quectel GNSS modules support FOTA function, which allows customers to upgrade the firmware of the modules over the air. This document introduces the detailed firmware upgrade procedures. Following the procedures, customers can download the built image to target side modules via UART. The document is applicable to Quectel L26, L76, L76B, L76L, L86 and L96 modules. Figure 1: Firmware Update Connection 1.1. Introduction to Download Agent Download Agent (DA) is a target side agent. After DA is successfully downloaded and running on target modules, it will be standby and passively waiting for the host to issue firmware upgrade commands via UART. GNSS_FOTA_User_Guide 5 / 12 HOSTGNSSUART

GNSS Module Series GNSS FOTA User Guide 2 Firmware Upgrade Procedures The whole procedures can be divided into two stages: Stage 1: Download DA to the internal SRAM, and then jump to DA start address to execute DA in the internal SRAM. Stage 2: Download BIN file to the flash, then jump to the flash start address to execute the file. 2.1. CMD_Start (Start Upgrade Procedure) After the GNSS module is powered on, the host will sequentially set 7 baud rates for serial communication and send the NMEA_START_CMD "$PMTK180*3B\r\n" at each baud rate to force the module to reset. Then the host will settle at the right baud rate to establish communication and the module will start the upgrade procedure. Figure 2: Flow of CMD_Start GNSS_FOTA_User_Guide 6 / 12 NEMA_START_CMD(PMTK180)Send NEMA_START_CMD at 7 baud rates respectively, then settle at the right baud rate.BOOT_ROM_START_CMD1(0xA0)~BOOT_ROM_START_CMD1(0x5F)BOOT_ROM_START_CMD2(0x0A)~BOOT_ROM_START_CMD2(0xF5)BOOT_ROM_START_CMD3(0x50)~BOOT_ROM_START_CMD3(0xAF)BOOT_ROM_START_CMD4(0x05)~BOOT_ROM_START_CMD4(0xFA)Send until the host receives 0x5F.The interval between each resend is 40ms.HostGNSS

GNSS Module Series GNSS FOTA User Guide 2.2. CMD_Write (Write DA to SRAM) During this procedure, DA will be written to SRAM. Figure 3: Flow of CMD_Write GNSS_FOTA_User_Guide 7 / 12 ...BOOT_ROM_WRITE_CMD(0xA1)BOOT_ROM_WRITE_CMD(0xA1)DA_BASE_ADDR(0x00, 0x00, 0x0C, 0x00)DA_BASE_ADDR(0x00, 0x00, 0x0C, 0x00)DA_SIZE_NUM_WORDDA_SIZE_NUM_WORDSend DA with 10 bytesBOOT_ROM_CHECKSUM_CMD(0xA4)BOOT_ROM_CHECKSUM_CMD(0xA4)HostGNSSDA_BASE_ADDR(0x00, 0x00, 0x0C, 0x00)DA_BASE_ADDR(0x00, 0x00, 0x0C, 0x00)DA_SIZE_NUM_WORDDA_SIZE_NUM_WORDDA_CHECKSUMACK with 10 bytes sentSend DA with last bytesACK with last bytes sent

资料库

Quectel_GNSS_FOTA_User_Guide_V1.0(Quectel_GNSS_FOTA_User_Guide_V1.0).pdf

相关推荐

树莓派

热门标签

最新资料