Subject:
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Re: serial communications
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 1 Mar 1999 20:18:51 GMT
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Original-From:
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Simon Schulz <SIMON.SCHULZ@HAGENER-TGZ.antispamDE>
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Viewed:
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1402 times
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some days ago i played with this too. i send you my files ...
hope it helps ;)
/* beginning of serial.c */
int char1;
void disable_pcode_serial() /* necessary to receive characters using
serial_getchar */
{
poke(0x3c, 1);
}
void reenable_pcode_serial() /* necessary for IC to interact with board
again */
{
poke(0x3c, 0);
}
int serial_getchar()
{
while ((!(peek(0x102e) & 0x20))&&(!start_button())); /* wait for received
character */
return peek(0x102f);
}
void serial_putchar(int c)
{
while (!(peek(0x102e) & 0x80)); /* wait until serial transmit empty */
poke(0x102f, c); /* send character */
}
/* beginning of my work below !*/
void echo() {
/* echo looks for a received char and sends it twice back */
disable_pcode_serial();
while (!start_button()) {
char1=serial_getchar();
/* prints the actual char , the last char and the ascii
numbers in brakes on screen */
printf("Actual:%c(%d)
Last:%c(%d)\n",char1,char1,char1,char1);
serial_putchar(char1);
serial_putchar(char1);
}
reenable_pcode_serial();
printf("PCODE-SERiAL ENABLED!");
}
/* end of file */
just check out the echo(); function . it waits for a send character
(transmitted by hyper term win95) and sends
it backk twice.
hope i have no errors in the code, cause i rewrote it for you because i
already modified my version.
hope it helps !
bye, Simon
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Message is in Reply To:
 | | serial communications
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| I want to disconnect interactive C from the handy board and send instructions to it via the hyper terminal on Windows 95. I have followed the instructions given in the HB technical reference. I am confused as to the procedure for accomplishing my (...) (26 years ago, 1-Mar-99, to lugnet.robotics.handyboard)
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