how to store a very large amount of data

[sougata]

I don't and i'm not going to use LabView... but i would hope it could send BYTES instead.. unless it's just plain stupid, unusefull and pointless.

So you just need a 256 byte sized array variable and a HSERIN STR... maybe For-Next loop+Hserin... of for-next loop+xyz=RCREG.. something easy.

You could probably get a Byte, then write it to your EEPROM.. but probably PBP built-in I2CWRITE will be too slow, You have to measure it... or try to calculate it.

Why Labview?

Hi Steve,

Just curious Do you think the PIC USART would be able to handle bits without defined start and stop bits. I think until and unless it is in a standard serial transmission the USART cannot be used. Possibily Shaig is using this in a college LAB environment and I doubt his serial hardware is the PC RS232 used by Labview. Then why bits and bytes .... I am confused. If it is bytes then there are tons of example here. Am I loosing my mind.... Its 31st March and the end of another FISCAL showing I didn't do well. Shall I start selling beers .. at least have one confirm customer.

[mister_e]

Sougata, i don't know how Labview work, but i would suggest to use a SerialPort sniffer software to see what happen on the selected comport first. SerialPort sniffer software are a real handy piece of software for me, for reverse engineering or new product development.

But, there's also the naming convention... bytes, bits may sound the same if you don't know the difference between them.... well that's what i'm thinking.

[sougata]

Hi,

Being majorly a graphical development tool focused on easy acquisition, analysis, reporting and signal generation tool I don't think it would be wise to use the I/O in bit dump. Anyway you do not acquire in bit or compute.

So Shaiq please confirm the bit/byte thing. Are you sure its 256bits being dumped ? Then how ? PRZ ?

[BrianT]

1. LabView works on almost any PC.
2. LabView works with a great many vendor's Data Acquisition cards & systems - these almost universally have RS232 serial interfaces except for high speed specials like SCSI.
3. PC's do NOT have clocked serial interfaces - they ALL have byte oriented asynchronous serial ports.
4. LabView may well talk of 256 'bits' being transferred but I am 99.999% certain this will be packaged up as 32 characters each in 8N1 format.

HTH
Brian

[precision]

DasyLab is better than Labvieu, I Purchased labview for X,Y plotting, but serial port not support well, Line was disturbed, Then i purchased dasylab. Only in three steps you can capture data from pic and send data to pic. Support of labvieu is also poor (in india).

Sample of ( snap shot )dasylab include , i have maked this only in 20 seconds.

[sougata]

Well I am not sure. Dasylab was originally a measurement computing product the guys who wrote softwire. Now it has been acquired by NI.