Pic18 and RN42 bluetooth communication problem using UART

[richard]

How should I enter ints 16 bit signed values? like following?

to send 10
in little_endian format
Hserout [10,0]

or big_endian format
Hserout [0,10]

not sure how arduinos go about it they could be big or little endian

if your values can be negative then you need to pay close attention to your calcs pbp uses unsigned math

New Code with config:

there is no config there
pbp default config for pic18f24j50 is

#CONFIG
  CONFIG  WDTEN = ON
  CONFIG  PLLDIV = 5
  CONFIG  STVREN = ON
  CONFIG  XINST = OFF
  CONFIG  DEBUG = OFF
  CONFIG  CPUDIV = OSC1
  CONFIG  CP0 = OFF
  CONFIG  OSC = HSPLL
  CONFIG  T1DIG = ON
  CONFIG  LPT1OSC = OFF
  CONFIG  FCMEN = OFF
  CONFIG  IESO = OFF
  CONFIG  WDTPS = 512
  CONFIG  DSWDTOSC = INTOSCREF
  CONFIG  RTCOSC = T1OSCREF
  CONFIG  DSBOREN = ON
  CONFIG  DSWDTEN = ON
  CONFIG  DSWDTPS = G2
  CONFIG  IOL1WAY = ON
  CONFIG  MSSP7B_EN = MSK7
  CONFIG  WPFP = PAGE_0
  CONFIG  WPEND = PAGE_WPFP
  CONFIG  WPCFG = OFF
  CONFIG  WPDIS = OFF
#ENDCONFIG

which expects an external xtal



DEFINE OSC 16

is just a compiler directive used for compile time timing calculations , it does nothing else

to use the internal osc the config words need to be set appropriately
such as
CONFIG OSC = INTOSC

or

CONFIG OSC = INTOSCPLL

and
CONFIG PLLDIV needs to match

along with

CONFIG CPUDIV which need to match

read the osc section of the data sheet

[picmilan]

Thanks alot! I will try that.

Do I need to set OSCCON and OSCTUNE registers as well if I am using internal oscillator? I am a bit confused about Frequency Tuning bit of OSCTUNE register.How you get to 16MHz from 96 MHz PLL?

[richard]

for 16mhz

#CONFIG
  CONFIG  WDTEN = ON
  CONFIG  PLLDIV = 2
  CONFIG  STVREN = ON
  CONFIG  XINST = OFF
  CONFIG  DEBUG = OFF
  CONFIG  CPUDIV = OSC3_PLL3
  CONFIG  CP0 = OFF
  CONFIG  OSC = INTOSCPLL
  CONFIG  T1DIG = ON
  CONFIG  LPT1OSC = OFF
  CONFIG  FCMEN = OFF
  CONFIG  IESO = OFF
  CONFIG  WDTPS = 512
  CONFIG  DSWDTOSC = INTOSCREF
  CONFIG  RTCOSC = T1OSCREF
  CONFIG  DSBOREN = ON
  CONFIG  DSWDTEN = ON
  CONFIG  DSWDTPS = G2
  CONFIG  IOL1WAY = ON
  CONFIG  MSSP7B_EN = MSK7
  CONFIG  WPFP = PAGE_0
  CONFIG  WPEND = PAGE_WPFP
  CONFIG  WPCFG = OFF
  CONFIG  WPDIS = OFF
#ENDCONFIG

OSCTUNE.6=1  ; pll enable

8mhz   -----/2 --= 4---pll--= 96 -/2 = 48  ------/3--  =   16    
inc osc   pll pre               pll            cpu div

[picmilan]

I got it running using external oscillator but bluetooth doesn't pickup the commands..

Any idea? even

Hserout [dec 10]

doesn't work.

[picmilan]

Actually It's working using what you suggested.

Hserout [10,0]

Thanks alot!