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XX 作 者:ZHS(文化人)
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写在前面:QCC300x支持OTA功能,官方提供了详细的文档说明,按照文档即可升级成功,下面是对流程的简单梳理,可参考;文档和APP下载。
1、生产APP升级包
1)创建OEM密钥对:
指令:dfukeygenerate –o oem随机输入或者重复输入,大概要24*3个数,然后enter,通过算法分别生成公钥和私钥
生成:oem.public.key和oem.private.key
2)把public密钥转换为psr文件
指令:dfukeyinsert -v -o oem_key -ka oem.public.key
生成:oem_key.psr
3)使用spi接口把psr文件烧录到设备中
指令:pscli -usb <SPIPORT> merge oem_key.psr
<SPIPORT> is the Id, e.g. 295567, of the USB-SPI
4)编写.upg文件,同级目录下放audio_prompts.xuv和qcc3007.xuv
device_variant QC3007
# Set the upgrade version and previous version(s)
# that are compatible to upgrade from. The minor
QCC300x Software Upgrade User Guide Create Upgrade File
80-CF065-1 Rev. AA Confidential and Proprietary – Qualcomm Technologies, Inc. 16
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
# version can be '*' to act as a wildcard.
upgrade_version 2.1
compatible_upgrade 1.*
compatible_upgrade 2.*
# Set the ps config version and previous version(s)
# that are compatible to upgrade from (hex values)
ps_config_version 2
ps_prev_config_version 0
ps_prev_config_version 1
# Filesystem containing audio prompts
1 3 audio_prompts.xuv
# Filesystem containing application and related data
2 0 qcc3007.xuv
5)使用upg文件生成xuv格式的升级文件
指令:UpgradeFileGen qcc3007.upg qcc3007_upg.xuv
生成:qcc3007_upg.xuv
6)用private密钥sign上面生成xuv升级文件
指令:dfusign -v -f -u -h qcc3007_upg.xuv -o qcc3007_upg_signed.xuv -ka oem.private.key
生成:qcc3007_upg_signed.xuv
7)把xuv文件转换为二进制格式文件,复制到手机
指令:xuv2bin -d qcc3007_upg_signed.xuv qcc3007_upg_signed.bin
生成:qcc3007_upg_signed.bin
2、把升级包拷贝到安卓手机;
3、根据文档进行升级,BR/EDR的速度比BLE要快,部分按照手机出现升级速度慢的情况;
4、以上生成的所有文件,可点击这里下载;