MT2523 USB download question
时间：10-02
整理：3721RD
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[Description]
USB download(without Battery) OK
USB download(with battery), download successful @ first time, after power on/offtarget, can not be download, and always normal bootup,repeted tests are the same.
[Solution]
1、 Send AT command:send "AT+ERTCREG=3" to target @ normal bootup mode befor download,then power off target and download.
2、 Add UI operation: UI iocon operation or button (left three times or right three times) call API: rtc_clear_rtc_mode ()@ normal bootup mode befor download, then power off target and download.
3、 Use the new version of flash tool, the new version flash tool add function: normal mode send "AT+ERTCREG=3", and reboot target for auto download. The new version flash tool will in SDK(After the SDK4.2.2 is expected).
USB download(without Battery) OK
USB download(with battery), download successful @ first time, after power on/offtarget, can not be download, and always normal bootup,repeted tests are the same.
[Solution]
1、 Send AT command:send "AT+ERTCREG=3" to target @ normal bootup mode befor download,then power off target and download.
2、 Add UI operation: UI iocon operation or button (left three times or right three times) call API: rtc_clear_rtc_mode ()@ normal bootup mode befor download, then power off target and download.
3、 Use the new version of flash tool, the new version flash tool add function: normal mode send "AT+ERTCREG=3", and reboot target for auto download. The new version flash tool will in SDK(After the SDK4.2.2 is expected).