不想要定时器上的外部复位

嗨，我用的是28引脚SOIC PIC18F27 K40，但我不确定我的问题只是与这个芯片有关。如果我想在MCC或“自由运行周期”模式中使用“定时器翻转脉冲”控制模式的定时器（我认为它们都是相同的），并且我不希望外部重置因为时间RS是软件控制的，使用中断，我可以将TXRST寄存器设置为数据表中的“保留”设置之一，以使问题消失吗？在我的芯片上定时器是2, 4和6。如果TXRST寄存器设置为0x00，那么外部复位源由PPS设置。这不是我想要的。最近的一个解决方案来了我的方式，然后设置引脚的东西不存在于我的芯片上，但存在于最大的版本的家庭，端口D这是一个解决办法，将无法工作在更大版本的家庭44针TQFP！我问这个问题是因为我相信我需要升级到芯片的TQFP版本。我不想在我的计时器2, 4或6（我的ADC）上使用外部重置！！！）我该怎么做？谢谢，史提夫



      以下为原文

    Hi,
I'm using a 28-pin SOIC PIC18F27K40 but I'm not sure my question is just related to this chip.

If I want to use a timer in 'roll over pulse' control mode on the MCC or 'free running period' mode in the datasheet (I think they are both the same) and I do not want an external reset because the timers are software controlled and use interrupts, can I set the TxRST register to one of those 'reserved' settings in the datasheet to make the issue go away?  The timers are 2, 4 and 6 on my chip.

If the TxRST register is set to 0x00 then the external reset source is set by PPS.  This is not what I want.  A recent solution came my way by then setting the pin to something that doesn't exist on my chip but exists on the largest version of the family, a Port D.  This is a workaround that won't work on the larger version of the family the 44-pin TQFP !!

I am asking the question because I believe I'll need to move up to the TQFP version of the chip.  I do not want to use an external reset on my timers 2, 4 or 6 (and my ADC for that matter!!).  How do I do this?

Thanks,
Steve