Writing SSI Handler and passing it to web browser via SSI tag

Ali, I am not sure if I understood what you intend to do, but I would avoid using pointers and would write something like this:

static int32_t SSIHandler(int32_t iIndex, char *pcInsert, int32_t iInsertLen) {
    //
    // Which SSI tag have we been passed?
    //
    switch(iIndex)
    {
        case SSI_INDEX_DATA:
            pcInsert = {'0', '\0'}; // Shouldn't pcInsert hold a null-terminated string? '0' != '\0'
                                    // If you want an empty string you should use pcInsert = { '\0' };
            iInsertLen = sizeof(pcInsert); // What do you need here, the size of the string or the size of the pointer variable?
                                           // If you need the string length use strlen(pcInsert) or just iInsertLen = 1 
                                           // since it is a zero-ended string in this example holding just '0'
            break;

        case SSI_INDEX_FORMVARS:
            break;

        case SSI_INDEX_SPEED:
            break;

        default:
            break;
    }
    return iInsertLen;
}

Provide more information on what you intend to do so that we will be able to figure out the right solution.

Angelo

Hello Angelo !

Thanks for reply. I wana pass my adc output to SSI Handler will in turn requested by SSI tags, by the browser.

ALI HASSAN said:

Hello Angelo !

Thanks for reply. I wana pass my adc output to SSI Handler will in turn requested by SSI tags, by the browser.

OK, this I understood, but I would like you to answer my comments in the code I proposed.

volatile uint32_t value;

char pcInsert[50];



void adc ();



void main(void) {

SysCtlMOSCConfigSet(SYSCTL_MOSC_HIGHFREQ);

SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | SYSCTL_OSC_MAIN | SYSCTL_USE_PLL | SYSCTL_CFG_VCO_480), 120000000);



adc();


sprintf(pcInsert, "%9d", value);

pcInsert[9] = '\0';



// the remaining code in main() does not matter for our discussion

}



void adc() {

SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);

SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);

GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_4);

ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_PROCESSOR, 0);

ADCSequenceStepConfigure(ADC0_BASE, 3, 0, ADC_CTL_CH9|ADC_CTL_IE|ADC_CTL_END);

ADCSequenceEnable(ADC0_BASE, 3);

while(1) {

ADCIntClear(ADC0_BASE, 3);

ADCProcessorTrigger(ADC0_BASE, 3);

while(!ADCIntStatus(ADC0_BASE, 3, false));

ADCSequenceDataGet(ADC0_BASE, 3, &value); // pass the address of the variable

}

}


how can I use the pcInsert of above adc code to SSI Handler to display on web browser.


Reagrds

Hi Ali, I am sorry, I haven't used SSI yet. I only have a Launchpad with no ethernet and no TCP IP library, I am not able to help you with that.

Angelo