logomatic: digital logger?

Development Boards MicroMod
1

Hoi,

I wonder if it is possible to use the logomatic v2 as a digital datalogger in the following way:

5 measurement devices are giving pulses with a width of 100ms every time the measure a unit.

I’ve to log haw many pulses there come in say one minute or 5 minutes.

So I need a time reference in the log file and for each channel a number of pulses, unless it can be done in another way.

2

You’d need to adapt the firmware, but you can turn it into a pulse counter. The change would be fairly easy.

3

hi all,

i’m trying to modify logomatic fw to count pulses… like brume need…

the best way, is to use IRQ enabled on each ch to count, wich reset a counter and after divide clock freq. with it …

F(Hz)=1/T(sec), where T=counter(sec/clock), so F(Hz)=clock/counter … right ?!?

preamble: this is my first time in ARM programming, i’m studying logomatic firmware to understand, so my problem is to know how enable IRQ on a specific pin (es. ch8 - AD1.3 - P0.12)

first question : ch8 = 0x00020FF08 ?

I’m using UART routine as example, is this code correct ? :?

enableIRQ();

VICIntSelect &= 0x00020FF08; //Make this a normal interrupt instead of FIQ

VICIntEnable |= 0x00020FF08; //Enable the interrupt

VICVectCntl3 = 0x28; //VIC slot 3 enabled, IRQ8 (VICVectCntl2=0x27 was slot 2,IRQ7)

VICVectAddr3 = (unsigned int)AD13ISR;

U0IER=1; //??? wich is corrispondent for AD1.3?

static void AD13ISR(void)

{

char temp;

temp = U0IIR; // Have to read this to clear the interrupt ??? wich is corrispondent for AD1.3?

}

thanks in advance for any help !