Dear Sir,
I am facing a problem, first i will explain my hardware, iam using P89C51RD2BN and handshake controls for to get into isp mode and i configured flashmagic settings also, and working well
but when iam trying to use hyperterminal for display "Hello world " program nothing is displaying,
later i connected (shorted) pins 1-4-6 and 7 -8, pins of 9 pin D connector at pc side, and removed handshake leads, then starts working displaying "hello world"
but keeping these connections along with handshake pins which are controlling ISP, interupting ISP system through handshakes, and my PSEN remains low, and RESET remains HIGH, this is causing system not working,
what can i do, to use both handshake based ISP control and serial programing,(terminal),.
thankyou,
PADMANABHAM
I am facing a problem, first i will explain my hardware, iam using P89C51RD2BN and handshake controls for to get into isp mode and i configured flashmagic settings also, and working well
but when iam trying to use hyperterminal for display "Hello world " program nothing is displaying,
later i connected (shorted) pins 1-4-6 and 7 -8, pins of 9 pin D connector at pc side, and removed handshake leads, then starts working displaying "hello world"
but keeping these connections along with handshake pins which are controlling ISP, interupting ISP system through handshakes, and my PSEN remains low, and RESET remains HIGH, this is causing system not working,
what can i do, to use both handshake based ISP control and serial programing,(terminal),.
thankyou,
PADMANABHAM