options in " #use rs232 " pre-processor directive

[small_chick]

I've read options in " #use rs232 " pre-processor directive, it mentions two follow options: UART1 and UART2 for the chips first and second hartware uart. This means some chips have more than one uart hardware.
I'm using PIC16F887, it seems that this chip has only one uart hardware, is it right ?
Thanks!

[gpsmikey]

Is it really that difficult to look through the datasheet for that chip ?
Or is it as you commented before that you are lazy?

mikey
_________________
mikey
-- you can't have too many gadgets or too much disk space !
old engineering saying: 1+1 = 3 for sufficiently large values of 1 or small values of 3

[small_chick]

gpsmikey, you are fun!
I've read datasheet, but it doesn't mention "uart hardware"! It just mentions EUSART asynchronous mode and EUSART synchronous mode ! This means two uart hardware???

[Ttelmah]

Look at the table, right at the front of the data sheet. Top of page 2. It lists each peripheral, and how many of each are present.
It is there for a reason.....

Best Wishes

[small_chick]

thank you very much,Ttelmah!

[small_chick]

everybody, I'd like to ask you one more problem. I need to calculate arcsin value of a variable, would you mind recommending me some ways ? Thanks !

[jeremiah]

There's a listing for it in the compiler manual. Check under the asin() function.