Keil forum P89v51RD2 hardware condition to enter in ISP mode

State Not Answered
Locked Locked
Replies 2 replies
Subscribers 13 subscribers
Views 1133 views
Users 0 members are here

Options

Related

How was your experience today?

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

P89v51RD2 hardware condition to enter in ISP mode

Offline Ashish Garag over 9 years ago

for P89v51RD2 what is the hardware condition to enter in ISP mode?

0 Offline Ash J over 9 years ago

just a reset.

click the flash magic 'start' button first and the reset the controller.
Cancel
Up 0 Down

Cancel
0 Offline Ashish Garag over 9 years ago in reply to Ash J

is there any need to control PSEN pin for P89v51RD2.?
i have tied PSEN to VCC and programmed, it gets program propely.
But for programming as per datasheet,PSEN should made low when RESET is high and it should be made HIGH after reset is made LOW.
so my concern is that even if don't go as per datasheet the IC gets programmed and if i connect PSEN to VCC and RESET the IC then will it program every time.?
Cancel
Up 0 Down

Cancel