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updated bib of OpenLab_osci_FPGA_imp4.asciidoc
authored
Mar 13, 2017
by
Patrick Schmitt
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OpenLab_osci_FPGA_imp4.asciidoc
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== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/
board_TIVAC[<Microcontroller-based TIVAC
] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/
sig_proc_osci_hardware[Signal Processing Front-End (XMC,TIVAC,DE0-Oscilloscope)
>]
== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/
OpenLab_osci_FPGA_imp3[<Sampling data and triggering
] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/
OpenLab_osci_XMC_imp[OpenLab Oscilloscope XMC Firmware
>]
= ADC interface
This entity interfaces the serial ADC of the OpenLab FPGA based oscilloscope. The ADC interface
is capable of controlling the ADS7885 serial ADC manufactured by Texas Instruments [
28
].
is capable of controlling the ADS7885 serial ADC manufactured by Texas Instruments [
1
].
This ADC does not utilize a standard interface. The chip-select input and the serial-clock of this
component are used to control the sampling of this ADC. The ADC interface gets two times
instantiated in order to control the ADC of channel 1 and channel 2. The entity itself consists of
...
...
@@ -11,7 +11,7 @@ three processes, each fulfilling a specific function.
{empty} +
Figure
45
gives an overview about the structure of the ADC-interface component.
Figure
1
gives an overview about the structure of the ADC-interface component.
{empty} +
...
...
@@ -22,7 +22,7 @@ image::https://es.technikum-wien.at/openlab/openlab_wiki/wikis/img/OpenLab_osci_
The first process, called CS_SCLK_CONTROL, controls the timing of the chip-select and the
clock enable signal. It also sets the FIN_SPI flag in order to signalize the completion of one
acquisition cycle. The timing of this process complies fully with the timing requirements stated
in the datasheet of the ADS7885 serial ADC [
28
].
in the datasheet of the ADS7885 serial ADC [
1
].
{empty} +
...
...
@@ -41,5 +41,11 @@ accessible by the sampling-data-and-triggering entity of the FPGA design.
{empty} +
== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/board_TIVAC[<Microcontroller-based TIVAC] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/sig_proc_osci_hardware[Signal Processing Front-End (XMC,TIVAC,DE0-Oscilloscope)>]
== Bibliography
. TEXAS INSTRUMENTS: ADS7885 Data Sheet, 2008.
{empty} +
== https://es.technikum-wien.at/openlab/openlab_wiki/wikis/home[Home] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/OpenLab_osci_FPGA_imp3[<Sampling data and triggering] | https://es.technikum-wien.at/openlab/openlab_wiki/wikis/OpenLab_osci_XMC_imp[OpenLab Oscilloscope XMC Firmware>]