Why is mine RS232 Serial slow????? at 115200

[Jody]

Hello,

I have a RS232 communication at 115200 with CTS handshaking and it works (mostly) very good only the time between two strings is very long...
Indeed I do some string compares but for sending 10k data it takes 3 minutes to send....??? Where am I going wrong???

I added mine code....

#use delay(clock=10000000)
#use rs232(baud=115200, xmit=PIN_C6, rcv=PIN_C7, errors)


#int_rda
void serial_isr()
{
string[next_in]=getch();

if (input(CTS) && string_ready)
{
output_toggle(ERROR);
}

if(string[next_in] == '\n') //End string
{
output_high(CTS); //Stop commuication
string_ready = 1;
string[next_in] = '\0';
output_toggle(HARTBEAT);
}

next_in=(next_in+1);

if(!string_ready)
{
output_low(CTS);
}
stop = 1;
}



void main()
{
int16 i, j, value, type, cont = 0;
int16 address_hi, address_lo, address;
char string1[] = "DATA:FLUSH";
char string2[] = "DATA";
char string3[] = "DATA:SAMPLE";
char string4[] = "DATA:TRIGGER";
char string5[] = "DATA:FIRST";
char string6[] = "DATA:LAST";
char string7[] = "LIST:MODE CONT";
char string8[] = "LIST:MODE SINGLE";
char string9[] = "LIST:START";
char string10[] = "LIST:STOP";
char string11[] = "POS";
char string12[] = "RESET";

setup_adc_ports(NO_ANALOGS|VSS_VDD);
setup_adc(ADC_OFF|ADC_TAD_MUL_0);
setup_psp(PSP_DISABLED);
setup_spi(SPI_MASTER|SPI_L_TO_H|SPI_CLK_DIV_16|SPI_SS_DISABLED);
setup_wdt(WDT_OFF);
setup_timer_0(RTCC_INTERNAL);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_timer_3(T3_DISABLED|T3_DIV_BY_1);
setup_timer_4(T4_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(VREF_LOW|-2);
setup_low_volt_detect(FALSE);
setup_oscillator(False);
enable_interrupts(int_rda);
enable_interrupts(global);

delay_ms(20);
delay_dac = 2;
send_to_dac714(0);
trigger_mode = 0;

fill_eeprom();
fill_tabel();

output_low(CTS);
while(TRUE)
{
if(string_ready)
{
if(!(strncmp(string,string2,4)) && (!(string[4] ==':'))) //"DATA";
{
data_tabel();
}
}
}

[Ttelmah]

Ignoring the code for a moment, use the 'code' buttons when posting code, and tick the box 'disable HTML in this post', otherwise the result is unreadable, with much of the code simply 'lost'.
Now because this hasn't been done, we can only see 'extracts' of the code, but some comments still apply. I wouldn't read the CTS pin in the interrupt handler. _You_ are setting the CTS pin, so _you_ know it it is set. The problem here is that reading a pin (assuming you are using the 'standard_io' model), will change it's programming to be an input, rather than an output, and may well result in problems. So do the interrupt handler, something like:

[Jody]

(sorry for missing the code button)
Tried your code....
It seems to do the same.... that is time related..
I send: DATA 1,2354\n and I do that 500 times.. and that takes 3 minutes before it is al send...
The communication is alright... Almost never I get garbage. But the time spend in the #int_rda routine is very long... I removed all of mine code and only uses the #int_rda routine and the main to clear all the counters. The time between the \n pieces is very long... and I have no clue where to look for.....

If you want I will send the code I am using right now...

Thanks in advance,

Jody