无法读取PIC16F1719上的RB0和RA5

嗨，我是一个新手与微芯片PIC和我使用PIC16F1719在一个探险家8 DEV板与一个皮卡3。我试图做一些基本例程，如点亮LED当按下一个按钮，我注意到我只是不能察觉到一个信号RB0。我已经使用了PIC18F和这个MCU，A我必须编写代码：用PIC16，即使按下RB0按钮，PIC永远不会执行条件（我用断点保证）。我可以测量PIC引脚上的电压降，但是为什么我不能在PoBBITS.RB0上得到高电平？我错过了PIC16的东西吗？我会感谢任何帮助。



      以下为原文

    Hi,

I'm a rookie with Microchip PIC and I'm using a PIC16F1719 on an Explorer 8 dev board with a PicKit3.
I was trying to do some basic routines such as lighting the LEDs when pressing a button and I noticed that I just couldn't perceive a signal on RB0.

I've already used a PIC18F and with this MCU, all I had to code was:
TRISBbits.RB0 = 1;
LATB = 0x0;
if (PORTBbits.RB0) {
    //do stuff

}
With the PIC16, even though I press the RB0 button, the PIC never executes the condition (I ensured with a breakpoint).
I can measure a voltage drop on the PIC pin but why can't I get a high level on PORTBbits.RB0?
Am I missing something with the PIC16?

I'll be thankful for any help.