dspic30f4013 - Timer/ADC Interrupts

[rspadim]

Hello guys
What i have:
1 dspic30f4013 @10mhz cristal with pll 8x -> 80mhz
1 easydspic4
1 enc (ethernet spi)
1 mcp4922 (2 channel 12bit DAC)

What i need:

no blocking function on main execution line because it have the ethernet do packages function (must be the most fast process)

Read input from ADC using interrupt, 5 channels (any one, i will select hardware input pins after this, reading datasheet i preffer deticated sample and hold pins) and put it on a global variable

A interruption every 10ms with one timer (any timer for the moment), i will have a control here every 5 timer interrupts (50ms), and calculate time at every interrupt, but i want just one timer working

Communication with ethernetspi can't be disabled (timer configuration MUST not disable it)
Comunication with mcp4922 after ethernet spi function (output adc values of channels 1 and 2 with some modifications)
all SPI use the same SPI hardware

any idea how could i make the skell of this source code?
i was think somethink like:

Code: Select all

unsigned byte cur_adc_channel=0;
unsigned but interrupt_count=0;
unsigned int ADC_values[5]={0,0,0,0,0};
void ADC_interrupt(){
//    read_cur_adc_value
    ADC_values[cur_adc_channel]=ADC_current_channel_value
    cur_adc_channel++;if(cur_adc_channel>=5)cur_adc_channel=0;
// change current ADC channel to the next channel
// start ADC conversion
}
void TIMER_interrupt(){
    if(interrupt_count<255)interrupt_count++;
}
void main(){
// get first ADC values without timer

// configure SPI_ETHERNET
// configure ADC 
// start ADC conversion
// configure TIMER
// start timer
    while(1){
        if(interrupt_count>=5){
             do_control_here;
             interrupt_count=0;
        }
        spi_ethernet_do_packages_function;
        spi_mcp4922_DAC_function;
    }
}

thanks