Specifications

UC864-E/G/WD/WDU AT Commands Reference Guide

80304ST10041a Rev. 7 - 2010-10-14

#CSURVBC 125

#CSURVP 125

#CSURVPC 125

3.2.5. Command Issuing Timing

The chain Command -> Response shall always be respected and a new command

must not be issued before the module has terminated all the sending of its response

result code (whatever it may be).

This applies especially to applications that “sense” the OK text and therefore may

send the next command before the complete code <CR><LF>OK<CR><LF> is sent by

the module.

It is advisable anyway to wait for at least 20ms between the end of the reception of

the response and the issue of the next AT command.

If the response codes are disabled and therefore the module does not report any

response to the command, then at least the 20ms pause time shall be respected.

During command mode, due to hardware limitations, under severe CPU load the

serial port can loose some characters if placed in autobauding at high speeds.

Therefore if you encounter this problem fix the baud rate with +IPR command.