Hi,The problem is in the | Microcontroller › 8051 › problem with flash magic/interfacing DTMF 9170 with microcontroller › Hi,The problem is in the May 27, 2013 at 3:17 pm #9836 AJISH ALFREDParticipant Hi, The problem is in the circuit which connecting the microcontroller with the serial cable. Are you using a development board? Please post the circuit if possible
