PIC24FJ256GB406的UART3有问题

你好，在我试图在下面的专用引脚中设置UART3时，这个单片机有一些问题：（17）-PGEC2/LCDBIAS3/AN6/RP6/RB6（18）-PGED2/SEG63/AN7/RP7/U6TX/RB7（它意味着专用，因为它是一个不能放置在其他地方的紧凑板）。正如可以观察到的，这些是RP信号，它们能够被重新映射到一个UART（在我的例子中，UART 3是必须的），并且按照我通常所做的顺序进行的是下一个：主循环代码只不过是每隔2秒通过这个UART发送的一个消息…但是不幸的是，在白蚁RS232程序中没有看到任何东西：（其他的UART配置必须是好的，因为我已经在同一个家庭的几个微控制器中使用它（例如PIC24FJ256GB110）完美地工作。这一个不行。最好是丹尼尔。



      以下为原文

    Hello there,
I am having some troubles with this single microcontroller when I am trying to set up the UART3 in the following dedicated pins:
(17) - PGEC2/LCDBIAS3/AN6/RP6/RB6
(18) - PGED2/SEG63/AN7/RP7/U6TX/RB7
(It means dedicated because is a compact board that is not possible to put in other place).

As it is possible to observe, these are RP signals which are able to be remapped to a single UART (in my case, UART number 3 is a must), and the sequence I followed as I usually do is the next:

/* Signals for this CORE are completely digital */
DEBUG_MISO_AD = 0; /* Digital */
DEBUG_MOSI_AD = 0; /* Digital */
        
//UART3
/*Configure digital I/O*/
DEBUG_MISO_TRIS = 1; /* MISO */
DEBUG_MOSI_TRIS = 0; /* MOSI */
                  
/* Peripheral pin select: UART3 SELECT */
RPINR17bits.U3RXR = 0x07; /* RX recepcion */
RPOR3bits.RP6R = 0x1C; /* TX Transmision*/

And the main loop code is nothing but a message sending through this UART every 2 seconds... but unfortunately, nothing is seen in the Termite RS232 program :(.

The rest of the UART configurations have to be OK, because I have used it in several microcontrollers from the same family (for instance, PIC24FJ256GB110) working perfectly.

Any help would be appreciated, because I am getting stuck if this one does not work.

Best regards.
Daniel.