HSERIN HSEROUT - Baud rate help

[ScaleRobotics]

It looks like your transmitter is set to 2400, but your receiver is set for 9600 baud.

check out:

DEFINE HSER_TXSTA 20h       'Set receive register to TX en
define HSER_SPBRG 25
DEFINE HSER_SPBRGH 1

I like using PicMultiCalc. It can be found here: http://www.picbasic.co.uk/forum/cont....-PICMultiCalc

Then I can just paste it into my code. Here is one for 2400 baud, and one for 9600 baud.

DEFINE HSER_RCSTA 90h ' Enable serial port & continuous receive
DEFINE HSER_TXSTA 20h ' Enable transmit, BRGH = 0
DEFINE HSER_SPBRG 25  ' 2400 Baud @ 4MHz, 0.17%
DEFINE HSER_CLROERR 1 ' Clear overflow automatically

DEFINE HSER_RCSTA 90h ' Enable serial port & continuous receive
DEFINE HSER_TXSTA 24h ' Enable transmit, BRGH = 1
DEFINE HSER_SPBRG 25  ' 9600 Baud @ 4MHz, 0.16%
DEFINE HSER_CLROERR 1 ' Clear overflow automatically

[George]

Thanks - it works a treat now! Really appreciate your help. That Mister E is a clever fello

[George]

The PIC16f722 was doing funny things, in desperation I threw it away and went back to the trusty 16F88 however this is not working for me either.

The PicKit 3 I bought was driving me mad also, so it's back to the ETT programmer and PicKit 2 software.

It compiles and assembles ok, but it will not program. The programmer says "Verification of Configuration Failed" It programs fine if I get rid of anything to do with HSEROUT the defines and the command.

But the instant I bring in an HSEROUT command it will fail.

Here's the code:

@ __config _CONFIG1, _XT_OSC & _WDT_ON & _LVP_OFF & _CP_OFF & _MCLR_OFF
'pic16f88
ADCON0 = %00000000      'ADC Disabled
DEFINE OSC 4
DEFINE HSER_RCSTA 90h ' Enable serial port & continuous receive
DEFINE HSER_TXSTA 24h ' Enable transmit, BRGH = 1
DEFINE HSER_SPBRG 25  ' 9600 Baud @ 4MHz, 0.16%
DEFINE HSER_CLROERR 1 ' Clear overflow automatically
                   
ANSEL = 0 			'ALL DIGITAL
CMCON = 7 			'COMPARATORS OFF
INTCON = 0 			'Disable interrupts
TRISB = %00001111 		'SET PORTB RB2(RX) as input, others to OUTPUT
TRISA = %00000000 		'SET PORTA AS OUTPUTS

porta = 63
PAUSE 1000

'LeftBtn Var PORTB.1
'RiteBtn Var PORTB.3
'StopBtn VAR PORTB.0
'RadioEn var PortB.4

B0      VAR BYTE
B1      var byte
B2      var byte
TXdata  var byte
Direction var byte
LEDPtrn var byte
WakeVar var byte
MtrPwr  var bit

pause 1000
clear

porta = 0

start:
txdata = 100
hserout [txdata]
pause 1000
goto start

I'm going completely nuts over this and I think I'm about to get fired for being so useless. Please help

[mackrackit]

I do not know what is going on with the HSEROUT but you may want to correct something else. Who knows, maybe it will solve the other.

RA5 can only be an input. You have.
TRISA = %00000000 'SET PORTA AS OUTPUTS

Then this
porta = 63 = 00111111

[malc-c]

On the 18 pin device it appears that RA7 is also input only !

http://ww1.microchip.com/downloads/e...doc/30487c.pdf

Also, and whilst no expert on your settings you have

TRISB = %00001111 		'SET PORTB RB2(RX) as input, others to OUTPUT
TRISA = %00000000 		'SET PORTA AS OUTPUTS

porta = 63
PAUSE 1000

'LeftBtn Var PORTB.1
'RiteBtn Var PORTB.3
'StopBtn VAR PORTB.0
'RadioEn var PortB.4

you have set PORTB as output apart from RB2 but appear to have buttons which are normally inputs ( taking pin high or low) on RB1, RB3, RB0 and RB4 ?, but appear to have set it correctly with TRISB = %00001111