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I have developed LPC2388 Board, The power supply is fine and even i am able to download the program on the board, once dwonloading problem was solved i wrote a sample program which will make all the ports pins on all port low...but when i checked the volatge on the PINS it always show 2.3volts. my feeling is i am making mstake in configuring the prots pins properly,
I would really appreciate if some one can provide a sample program which makes all the ports pins high and low...
Thanking you in advance
Thank You very much for your reply, well, to set PORT0 and 1 to fast GPIO the instruction is same but then i feel it wont make a difference and what you said is very true there is no harm in making everything sure...I shall do it right away... Earlier i thought of toggling PINS i had even connected LEDs to see them blinking but when nothing happened i got desperate and thought let me check if it is even making it low...LOL
well any way...i got one more doubt its about hardware, when i download the program through serial port, the chip is in the ISP mode, once the program is downloaded i press reset to run the user program,but next time when i again click start on Flash Magic without even pressing reset key , its starts downloading, so does this mean, the controller is still in ISP mode and it is unable to come out of ISP mode, how do i make sure that controller is out of ISP mode?
I would appreciate the kind responses Thank you in advance.
According to the LPC23XX User manual:
UM10211 LPC23XX User manual Rev. 01 - 11 March 2008 User manual
Chapter 29: LPC23XX Flash memory programming firmware
4. Boot process flowchart
Fig 131. Boot process flowchart
Enter ISP MODE? (P2.10=LOW)