Bit Angle Modulation (BAM) in a PIC

[ShortBus]

I'm having problems compiling the sample code. Would you have any suggestions?

;----[ MIBAM Setup ]--------------------------------------------------------
BAM_COUNT CON 3                     ; How many BAM Pins are used?
INCLUDE "MIBAM.pbp"                 ; Mirror Image BAM module

RED    VAR BYTE
GREEN  VAR BYTE
BLUE   VAR BYTE

ASM
BAM_LIST  macro                     ; Define PIN's to use for BAM
     BAM_PIN (PORTB,0, RED)         ;   and the associated Duty variables
     BAM_PIN (PORTB,1, GREEN)
     BAM_PIN (PORTB,2, BLUE)
  endm
  BAM_INIT  BAM_LIST                ; Initialize the Pins
ENDASM
;___________________________________________________________________________

Assembler output:

project.asm 257: Symbol not previously defined (wsave)
project.asm 260: Symbol not previously defined (ssave)
project.asm 262: Symbol not previously defined (psave)
project.asm 388: Symbol not previously defined (psave)
project.asm 390: Symbol not previously defined (ssave)
project.asm 392: Symbol not previously defined (wsave)
project.asm 393: Symbol not previously defined (wsave)

[Darrel Taylor]

In the MIBAM thread. The second post lists the typical Error/Warning messages you might encounter.

In your case, you need to add the wsave block shown in Post#1.
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[boroko]

At 4800 baud, each byte takes about 2.1 mS.
The USART has a 2.8 byte buffer, so at around 6 mS the USART buffer will overflow.

Sorry I didn't get back. Thank you, that was where I missed it.

Bit of a lull as I wait for a new meLabs serial programmer. For some reason the 18F2550 decided to become a heating element instead of a processor. Alas, it lived a good life.... Couldn't be EOC, could it? (Excessive Operator Carelessness). Had to dig out an old laptop that still had a parallel port to run the EPIC programmer.

Bo