how use the second UART of the PIC16F1947

[jccortes]

Hi, i tried use the second UART of the PIC16F1947 for the ds30loader, but i cant do it, because a error on the compilation appears, where tell me, that PIC no have second UART, i am sure of that PIC have second UART because I use it (the second UART) with no problems.

the error is:  UART.INC 71 : ERROR: (UART2 specified for a device that only has uart1)

I configure the parameters of the communication, baud rate, device, FOSC, configuration bits, etc etc, and I used it with no problems in another chips, PIC16F1933,PIC16F1936,PIC16F1938

I missing something??

is problem with the version free??


Thanks.

[Mikael Gustavsson]

Hi,
Please zip and post the entire boot loader project. Or modify the devices inc file yourself.
Thanks

[jcca]

Hi,
Please zip and post the entire boot loader project. Or modify the devices inc file yourself.
Thanks

Hi , I attached the project in ZIP format , I tried to modify the file you mentioned but does not work me , thanks for your time

[Mikael Gustavsson]

Here comes a new devices_PIC16F.inc with support for uart2 with PIC16F1947.

[jcca]

thank you very much, sorry for the delay in answering, I will try and notify you if it works properly

regards

[jccortes]

Hi Mikael, i tried to use the second uart with the new file of devices PIC16F.inc, but not work, I test every baud rate possible, but not work.
Any suggestion??.
Thanks.

[jccortes]

the process of compiling finish all good, so, i dont have any error in that part. the process of burn the PIC it's ok, the UART 2 it's ok, i test a simple program and work the uart 2

[Mikael Gustavsson]

Zip and post the project.

[jccortes]

This is the project, thanks

[jccortes]

Hi Mikael, any news about this post??? thanks

[Mikael Gustavsson]

Hi,
You have not set the configuration bits. You need to do that.

[jccortes]

Hi, configuration bits placed them from the environment MPLAB , I have always done and had not given me problems until now.

could you give me an example of how they should go, please, thanks

[jccortes]

hello, I recompiled the project from the template, mark an error in the Ansela in UART2 that there PIC ADC, I think maybe that's the problem.

[jccortes]

worked, was the ANSEL, in AD pins UART2 two channels, configured as digital inputs and outputs were and run

[Mikael Gustavsson]

Great! Feel free to post the code. It may be useful for other people.

[jccortes]

yes of course, here i put the code.

[mrjaco]

Here comes a new devices_PIC16F.inc with support for uart2 with PIC16F1947.