Hi, I get the exact same problem, what this post has mentioned:
http://www.keil.com/forum/16410/
But the solution suggested dint work out for me. I just downloaded nxp library, i included file lpc177x_8x_pinsel.c, and tried to use PINSEL_ConfigPin function, whenever i include this line, I get the problem that the debugger goes to 0x1fff0080. Kindly suggest me solutions, BTW , I checked the settings of Pin 2.10 also, it is pulled down with 10k. Thanks in advance.