Xaar 1003 Waveform Calc

In [1]:

    

# Waveform Calc
dclk_period   = 100e-9 # Typ 100ns == 10MHz Max 12MHz
waveform_bits = 4      # bits
waveform_size = 2040*2 # nibbles

# calc
ph_wave_datasize = waveform_size*waveform_bits # bits
ph_wave_speed    = waveform_bits/dclk_period   # bit/s
ph_download_time = 1/ph_wave_speed*ph_wave_datasize

## SPI Access
spi_clk = 1e-3 # 1us
spi_access_datasize = 32 # bits
spi_access_time = 71e-6  # 71us

# calc
spi_nbrOfAccess   = ph_wave_datasize/spi_access_datasize
spi_access_speed  = spi_access_datasize/spi_access_time # bit/s
spi_download_time = 1/spi_access_speed*ph_wave_datasize

print("Xaar 1003 PH Waveform")
print("PH Waveform Size            = {} bytes".format(ph_wave_datasize/8))
print("PH Waveform Download Speed  = {} kBytes/s = {} MBytes/s".format(ph_wave_speed/(8*1024), ph_wave_speed/(8*1024*1024)))
print("PH Waveform Download Time   = {} ms".format(ph_download_time*1000))

print("")
print("Xaar 1003 SPI Waveform")
print("Number of SPI Accesses used = {}".format(spi_nbrOfAccess))
print("SPI Speed                   = {} kBytes/s = {} MBytes/s".format(spi_access_speed/(8*1024),spi_access_speed/(8*1024*1024)))
print("SPI Waveform Download Time  = {} ms".format(spi_download_time*1000))


    

    




Xaar 1003 PH Waveform
PH Waveform Size            = 2040.0 bytes
PH Waveform Download Speed  = 4882.8125 kBytes/s = 4.76837158203125 MBytes/s
PH Waveform Download Time   = 0.408 ms

Xaar 1003 SPI Waveform
Number of SPI Accesses used = 510.0
SPI Speed                   = 55.017605633802816 kBytes/s = 0.05372813050176056 MBytes/s
SPI Waveform Download Time  = 36.21 ms