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Ai-Thinker-Open / GPRS_C_SDK

Ai-Thinker A9/A9G GPRS (with GPS(A9G)) module C development SDK
https://ai-thinker-open.github.io/GPRS_C_SDK_DOC
MIT License
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Unable to download any on pundit a9g #249

Open thefaisalhaque opened 6 years ago

thefaisalhaque commented 6 years ago

I'm not able to download any new firmware. My coolwatcher (2.01.03) stops on this error, after a workig first connection:

 `CHST_Read32': Request to coolhost timed out ! (CoolHostTimeoutError)

./rbbase/common/coolhost_connections.rb 161 CHST_Read32' ./rbbase/common/coolhost_connections.rb 161 read32' ./rbbase/common/base.rb 85 read' ./rbbase/common/base.rb 239 read' ./chipgen/Modem2G/toolpool/scripts/8809/target_executor.rb 72 enterHostMonitor' ./chipgen/Modem2G/toolpool/scripts/ChipStd/target_executor.rb 366 session' ./chipgen/Modem2G/toolpool/scripts/ChipStd/ramrun.rb 12 doramrunXfer' ./chipgen/Modem2G/toolpool/scripts/ChipStd/ramrun.rb 62 ramrunXfer' ./chipgen/Modem2G/toolpool/plugins/fastpf/fastpf.rb 212 dofastpfXfer' ./chipgen/Modem2G/toolpool/plugins/fastpf/fastpf.rb 718 dofastpf' ./chipgen/Modem2G/toolpool/plugins/fastpf/fastpf.rb 788 fastpf' ./chipgen/Modem2G/toolpool/plugins/fastpf/fastpfplugin.rb 83 fastpfGenericGo' ./chipgen/Modem2G/toolpool/plugins/fastpf/fastpfplugin.rb 112 `fastpfGo'

EVENT SNIFFING ERROR: CONNECTION BROKEN? EVENT SNIFFING RESURRECTED.

SDK version - V2.112 usb-uart is the FT232RL and the tx->hst-rx and rx->hst-tx pins are connected.

but not working.

azakh commented 4 years ago

Did you solve it? I have the same problem

I couldn't download anything as well with CP2102 until I connected GND->GND, RX->HST_TX, TX->HST_RX and powered the board from USB adapter. Try connect data pins first and then powerup the board.