16

LTC1403/LTC1403A

1403af

;

-------------------dummy bsend return------------------------

bsend

return_enable

;this is also a dummy return to define bsend

;in vector table file BVECTORS.ASM

;

----------------------- end ISR ----------------------------

.copy "c:\dskplus\1403\s2k14ini.asm"

;initialize buffered serial port

.space 16*32

;clear a chunk at the end to mark the end

;======================================================================

;

;

VECTORS

;

;======================================================================

.sect "vectors"

;The vectors start here

.copy "c:\dskplus\1403\bvectors.asm"

;get BSP vectors

.sect "buffer"

;Set address of BSP buffer for clearing

.space 16*0x800

.sect "result"

;Set address of result for clearing

.space 16*0x800

.end

**********************************************************************

*

(C) COPYRIGHT TEXAS INSTRUMENTS, INC. 1996

*

**********************************************************************

*

*

* File: s2k14ini.ASM

BSP initialization code for the 'C54x DSKplus

*

*

for use with 1403A in standard mode

*

*

BSPC and SPC are the same in the 'C542

*

*

BSPCE and SPCE seem the same in the 'C542

*

**********************************************************************

.title "Buffered Serial Port Initialization Routine"

ON

.set 1

OFF

.set !ON

YES

.set 1

NO

.set !YES

BIT_8

.set 2

BIT_10

.set 1

BIT_12

.set 3

BIT_16

.set 0

GO

.set 0x80

**********************************************************************

* This is an example of how to initialize the Buffered Serial Port (BSP).

* The BSP is initialized to require an external CLK and FSX for

* operation. The data format is 16-bits, burst mode, with autobuffering

* enabled.

*

*****************************************************************************************************

*LTC1403 timing from LCC28 socket board with 10MHz crystal.

*

*10MHz, divided from 40MHz, forced to CLKIN by 1403 board.

*

*Horizontal scale is 25ns/chr or 100ns period at BCLKR

*

*Timing measured at DSP pins. Jxx pin labels for jumper cable.

*

*BFSR

Pin J1-20 ~~\____/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\____/~~~~~~~~~~~*

*BCLKR Pin J1-14 _/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~\_/~*

*BDR

Pin J1-26 _---_---_---<B13-B12-B11-B10-B09-B08-B07-B06-B05-B04-B03-B02-B01-B00>---_---<B13-B12*

*CLKIN Pin J5-09 ~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~~~\_______/~~~~~*

*C542 read

0

B13 B12 B11 B10 B09 B08 B07 B06 B05 B04 B03 B02 B01 B00

0

0

B13 B12*

*

*