Flash Magic Forum

In-System Programming Support => P89V51Rx2/P89LV51Rx2 => Topic started by: suhelshaikh21 on March 21, 2014, 09:31:20 pm

Title: Flashmagic need restart
Post by: suhelshaikh21 on March 21, 2014, 09:31:20 pm
Hello Everyone,
I am having p89v51rd2,
I am connecting it with my laptop using usb to serial cable & DB9 connector.
its work good first time only with boud rate9600.
but after that second time if i connect it was give me error unable to connect try to reduce baudrate, with same setting
if i restart my laptop & then i connect now it load programe again(i.e i require restart of my laptop every time when i using flshmagic)
how to solve this issue
Title: Re: Flashmagic need restart
Post by: Andy Ayre on March 24, 2014, 01:10:39 am
Please try a USB to RS232 cable from a different manufacturer and see what happens. My first guess is that it is a driver issue.

Andy
Title: Re: Flashmagic need restart
Post by: suhelshaikh21 on March 24, 2014, 09:21:14 pm
I am changing usb to rs232 cable.
but result are same.
if i change pc then no need to restart
Title: Re: Flashmagic need restart
Post by: Andy Ayre on March 25, 2014, 01:37:21 am
It must be something specific to your windows installation. There is nothing in Flash Magic that requires a reboot to continue using it and we don't have anyone else with any similar kind of issue.

I suggest to look at the low-level comms using PortMon then check to see what is different the first time (working) and the second time (fails).

Andy