U64 to minutes:seconds:milliseconds.microseconds

[amitwadje]

Hi,

How to convert the U64 number to to the format of minutes:seconds:milliseconds.microseconds ?

Thanks for help:)

[pincpanter]

This should be specified in the documentation of the function or library or dll you will use to get this U64 value.

Which is?

[GerdW]

Hi Amit,

could you please explain the formatting of your U64 value? What data does it contain?

Once you did this we can easily solve the problem with you...

[amitwadje]

Thanks pincpanter and GerdW,

If I use the actual user interface software of the product it shows time in m:s:ms.us format but if I use LabVIEW drivers I get U64 format for the timestamp which I further need to convert to m:s:ms.us

The key question for me here, are these ticks to be consider in ms or us ? I am not expert of C or C++.

Please see the red marking below.

Read SPI (bg_spi_read)

      int bg_spi_read (Beagle   beagle, 
                       u32 *    status, 
                       u64 *    time_sop, 
                       u64 *    time_duration, 
                       u32 *    time_dataoffset, 
                       int      mosi_max_bytes, 
                       u08 *    data_mosi, 
                       int      miso_max_bytes, 
                       u08 *    data_miso);
    

Read data from the SPI port.

Arguments

beagle	handle of a Beagle analyzer
status	filled with the status bitmask as detailed in Table 11
time_sop	filled with the timestamp when the data read begins
time_duration	filled with the number of ticks that it took to read the data
time_dataoffset	filled with the timestamp when data appeared on the bus
mosi_max_bytes	maximum number of MOSI bytes to fill
data_mosi	an allocated array of u08 which is filled with the data sent from the master to the slave
miso_max_bytes	maximum number of MISO bytes to fill
data_miso	an allocated array of u08 which is filled with the data sent from the slave to the master

Return Value

This function returns the number of bytes read or a negative value indicating an error.

Specific Error Codes

None.

Details

The function will block until the requested amount of data is captured, a complete packet with slave select deassertion is observed, or the bus is idle for longer than the timeout interval set. See Section 6.4.1.12 for information on the bg_latency() and bg_timeout() functions which affect the behavior of this function.

The data_mosi array should be allocated at least as large as mosi_max_bytes. The data_miso array should be allocated at least as large as miso_max_bytes.

All of the timing data is measured in ticks of the sample clock.

Thanks for help 🙂

[altenbach]

So, what is the frequency of the sample clock?

[altenbach · Accepted solution]

Once you scale with the sample clock to fractional seconds as DBL, use a FOR loop with a shift register containing a "quotient &remainder", autoindexing on an array of divisors, one for each field to generate an array of parts. After the loop, use "array to spreadsheet string" and ":" as delimiter to format as the desired output.

You can likely do it all with blue datatypes, recommended).

[Alexander_Sobolev]

The Beagle USB 12 analyzer is locked to a 48 MHz sample rate, thus each count measures 20.83 ns.

https://www.totalphase.com/support/articles/200472426#s6.5

[amitwadje]

I am using 50MHz frequency for Beagle SPI it can be configured, thus one count tick is 20ns.

Thanks all.