Hi,
you can use at least 3 methods :
[1] add an additionnal (little) MCU sending data frame at specified time or (better) when triggered by a Proteus switch
[2] use a COMPIM Proteus component to catch frame data coming from external terminal emulator (need 2 com ports)
[3] use a digital script (scriptable HDL), but I believe this can only send predifined data at specified time (only used this manner).
I regulary used these 3 methods :
[1] and [3] with success at bautdrate less or equal to 250k,
[2] at a max of 56k (enough for basic tests).
Example with HDL digital script :
Code: Select all
// SERIAL DATA GENERATOR
// 1 - ASCII data to be output
DATA "Hello World ", 250m
DATA "- EASYHDL Test Program - First line\r", 500m
DATA "Hello World ", 250m
DATA "- EASYHDL Test Program - Second line\r", 500m
DATA REPEAT
// 2 - Define the baud rate
FLOAT BAUD=9600
FLOAT BITTIME=1.0/BAUD
// 3 - Declare working variables
STRING s
INT i,j,d
TIME td
// 4 - Top level
OUT = 1
SLEEP FOR 5m
// 5 - Read DATA line
LOOP:
READ s,td
GOSUB OUTSTRING
SLEEP FOR td
GOTO LOOP
// 6 - Output an ASCII string in S char
OUTSTRING:
FOR i=1 TO LEN(s)
d = ASC(SUBSTR(s,i))
GOSUB OUTCHAR
NEXT I
RETURN
// 7 - Send a single character, one by one
// 1 Start bit, 1 Stop bit, no parity
OUTCHAR:
// Start bit
OUT = 0
SLEEP FOR BITTIME
// Data bits
FOR j=0 TO 7
OUT = d & (1 << j)
SLEEP FOR BITTIME
NEXT j
// Stop bit
OUT = 1
SLEEP FOR BITTIME
RETURN
Regards,
Remy