Lpc2000

--- In lpc2000@yahoogroups.com, "Uwe Arends" <nospam@...> wrote:
>
> Hi,
> 
> > I am experincing a strange problem on a LPC2212.
> > Sometimes, after board power-up, the micro does not start at all 
and 
> > seems to remain in a pseudo-reset state (all pins in high-z).
> > The software execution seems not to start at all, since one of 
the 
> > first thing done is to program some of the GPIO as outputs.
> > I checked the state of the BOOT pins related to RESET pin and 
power 
> > supplies but everything seems to be ok.
> > RESET is released when all the configuration pins are in the 
correct 
> > position.
> > JTAG pins are polarized with pull up/down resistors.
> > 
> > The problem seems to be somehow related to the UART0 (the problem 
> > appears when the board is connected to a PC through a serial 
cable).
> 
> do you have some sort of Reset/Enable Bootloader mechanism 
controlled
> by RS232 lines?
>

Yes, but I disconnected the cables that brings my MCU in BOOT mode.
So now I have only RS-232 TX, RX and GND connected.
It doesn't seem to enter boot mode, since it does not respond to ISP 
commands.