LPC2131 ,Printf函数通过串口1向上位机软件发送数据，以后利用该模板即可正常使用Printf。 -LPC2131, Printf function upward through the serial 1-bit software to send data beyond the normal use of the template can use Printf.

LPC213x系列ARM7处理器的printf实现程序-LPC213x series ARM7 processor to achieve the program the printf