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PSoC 4 MCU

gamac_2277161
New Contributor

Good day all,

   

I am working on project using the UART component for serial communication with the NEOWAY M590E modem. In my project i wait till the ISR receives +PBREADY before it sends any AT command. 

   

The issue am have is upon sending my AT command using PutString, the command is written into my array which i use to receive response from the modem. Based on my perspective the PutString function is using my isr which was connected to Rx_Int of the UART component. 

   

Please how do i fix this bug?

   

attached is a copy of my project. 

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5 Replies
JoMe_264151
Expert II

Can it be the case that the modem is configured for echoing the received characters?

   

Check your variable rxd_cnt, it might overflow / underflow.

   

 

   

 

   

Bob

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gamac_2277161
New Contributor

thats very true. would check it out now.

   

Thanks alot

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gamac_2277161
New Contributor

the echo was actually the fault. thanks alot. is it possible to ready only the message section of a CMGR or CMGL AT command????

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EvPa_264126
Valued Contributor II

I needed to connect the battery to the contact VBTA  for SIM900 
Otherwise - after the first activation of the transmitter modem stops responding.
Maybe you will be interested in the project for SIM900
M590E has a lot in common with it
PSoC4: GSM Modem

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gamac_2277161
New Contributor
        Thanks a lot. was really helpful...   
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