Hi,
Use the RC7620-1 module to send AT commands. The first few times the module will respond, but after that, the command will not respond.
Please help with this issue or what should I do.
is problem only happening after +CMUX?
have you checked +KSLEEP and see if the module has slept?
Are you seeing problem on UART or USB?
BTW, why do you need to touch AT!MAPUART?
Hi @jyijyi
Thank you for your reply.
Make sure there is no sleep. + KSLEEP: 2
Seeing problems on UART.
Set UART 1 to transmit AT command
do you see problem with USB?
do you see problem without using +CMUX?
You don’t need to use AT!MAPUART as the default setting already make the UART accept AT command
@jyijyi
Module to be soldered to the designed PCB.We use UART only.
There will be problems without +CMUX.
how many modules are having this issue?
I don’t see problem with development kit, so wonder if this is a hardware issue on your board.