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RE: UART communication
- To: jlarmour at redhat dot com
- Subject: RE: [ECOS] UART communication
- From: Andreas dot Karlsson at combitechsystems dot com
- Date: Wed, 6 Sep 2000 07:31:19 +0200
- Cc: ecos-discuss at sourceware dot cygnus dot com, aeb at arm dot com
>
> Can you clarify what you mean by CTS/RTS enabled? How did you
> enable this?
> Jifl
I enabled it with the cyg_io_set_config-function like this:
cyg_serial_info_t settings_buf;
settings_buf.baud=CYGNUM_SERIAL_BAUD_57600; //had to modify the sources in
aeb_serial.h
settings_buf.stop=CYGNUM_SERIAL_STOP_1;
settings_buf.parity=CYGNUM_SERIAL_PARITY_NONE;
settings_buf.word_length=CYGNUM_SERIAL_WORD_LENGTH_8;
settings_buf.flags=CYG_SERIAL_FLAGS_RTSCTS; //enable CTS/RTS
err = cyg_io_lookup( "/dev/ser0", &ser0_hdl );
if(ENOERR != err)
{
printf("Couldn't find /dev/ser0 !!\n");
}
len=sizeof(cyg_serial_info_t);
err=cyg_io_set_config(ser0_hdl, CYG_IO_SET_CONFIG_SERIAL_INFO,
&settings_buf, &len);
When checking the Line Status Register after receiving the zero-byte there
is an overrun error.
The value of LSR is 0x62.
/Andreas