Modified documentation, added CRC wrapper.

doc/core/Progdokum.lyx

@@ -533,7 +533,7 @@ Ille Ondrej, Martin Jeřábek
 \noindent
 \align center
 \begin_inset Tabular
-<lyxtabular version="3" rows="6" columns="4">
+<lyxtabular version="3" rows="7" columns="4">
 <features tabularvalignment="middle">
 <column alignment="center" valignment="top" width="1.5cm">
 <column alignment="center" valignment="top" width="2cm">
@@ -734,13 +734,52 @@ Added Linux driver description
 </cell>
 </row>
 <row>
-<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
 \begin_inset Text
 
 \begin_layout Plain Layout
 2.1.1
 \end_layout
 
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Ondrej Ille
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+12-2018
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+Added Register map block diagram after re-implementation of registers via
+ Register map generator.
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row>
+<cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Plain Layout
+2.1.2
+\end_layout
+
 \end_inset
 </cell>
 <cell alignment="center" valignment="top" topline="true" bottomline="true" leftline="true" usebox="none">
@@ -765,8 +804,8 @@ Ondrej Ille
 \begin_inset Text
 
 \begin_layout Plain Layout
-Added Register map block diagram after re-implementation of registers via
- Register map generator.
+Added CRC Wrapper.
+ Extended CRC description.
 \end_layout
 
 \end_inset
@@ -4949,7 +4988,7 @@ PH2, PH2 FD
 \begin_inset Text
 
 \begin_layout Plain Layout
-4
+-
 \end_layout
 
 \end_inset
@@ -4996,7 +5035,7 @@ PH1 + PROP FD
 \begin_inset Text
 
 \begin_layout Plain Layout
-2
+-
 \end_layout
 
 \end_inset
@@ -5456,7 +5495,7 @@ CAN Core
 \end_layout
 
 \begin_layout Description
-File core_top.vhd
+File can_core.vhd
 \end_layout
 
 \begin_layout Description
@@ -5464,14 +5503,14 @@ Used
 \begin_inset space ~
 \end_inset
 
-in CAN_top_level.vhd
+in can_top_level.vhd
 \end_layout
 
 \begin_layout Description
 Entity 
 \family roman
 \shape italic
-core_top
+can_core
 \end_layout
 
 \begin_layout Standard
@@ -5732,7 +5771,7 @@ name "subsec-Protocol-Control"
 \end_layout
 
 \begin_layout Description
-File protocolControl.vhd
+File protocol_control.vhd
 \end_layout
 
 \begin_layout Description
@@ -5740,14 +5779,14 @@ Used
 \begin_inset space ~
 \end_inset
 
-in core_top.vhd
+in can_core.vhd
 \end_layout
 
 \begin_layout Description
 Entity 
 \family roman
 \shape italic
-protocolControl
+protocol_control
 \end_layout
 
 \begin_layout Standard
@@ -9284,7 +9323,7 @@ name "subsec-Operation-control"
 \end_layout
 
 \begin_layout Description
-File operationControl.vhd
+File operation_control.vhd
 \end_layout
 
 \begin_layout Description
@@ -9292,14 +9331,14 @@ Used
 \begin_inset space ~
 \end_inset
 
-in core_top.vhd
+in can_core.vhd
 \end_layout
 
 \begin_layout Description
 Entity 
 \family roman
 \shape italic
-operationControl
+operation_control
 \end_layout
 
 \begin_layout Standard
@@ -9524,7 +9563,7 @@ name "fig:OP_control"
 \end_layout
 
 \begin_layout Description
-File faultConf.vhd
+File fault_confinement.vhd
 \end_layout
 
 \begin_layout Description
@@ -9532,14 +9571,11 @@ Used
 \begin_inset space ~
 \end_inset
 
-in core_top.vhd
+in can_core.vhd
 \end_layout
 
 \begin_layout Description
-Entity 
-\family roman
-\shape italic
-faultConf
+Entity fault_confinement
 \end_layout
 
 \begin_layout Standard
@@ -9821,7 +9857,7 @@ name "fig:Fault-block-diagram"
 \end_layout
 
 \begin_layout Description
-File bitStuffing_v2.vhd
+File bit_stuffing.vhd
 \end_layout
 
 \begin_layout Description
@@ -9829,14 +9865,14 @@ Used
 \begin_inset space ~
 \end_inset
 
-in core_top.vhd
+in can_core.vhd
 \end_layout
 
 \begin_layout Description
 Entity 
 \family roman
 \shape italic
-bitStuffing
+bit_stuffing
 \end_layout
 
 \begin_layout Standard
@@ -10016,7 +10052,7 @@ name "fig:Bit-stuffing-logic"
 \end_layout
 
 \begin_layout Description
-File bitDestuffing.vhd
+File bit_destuffing.vhd
 \end_layout
 
 \begin_layout Description
@@ -10024,14 +10060,14 @@ Used
 \begin_inset space ~
 \end_inset
 
-in core_top.vhd
+in can_core.vhd
 \end_layout
 
 \begin_layout Description
 Entity 
 \family roman
 \shape italic
-bitDestuffing
+bit_destuffing
 \end_layout
 
 \begin_layout Standard
@@ -10232,7 +10268,7 @@ name "subsec-CRC"
 \end_layout
 
 \begin_layout Description
-File CRC.vhd
+File crc_wrapper.vhd
 \end_layout
 
 \begin_layout Description
@@ -10240,14 +10276,14 @@ Used
 \begin_inset space ~
 \end_inset
 
-in core_top.vhd
+in can_core.vhd
 \end_layout
 
 \begin_layout Description
 Entity 
 \family roman
 \shape italic
-canCRC
+crc_wrapper
 \end_layout
 
 \begin_layout Standard
@@ -10260,44 +10296,88 @@ literal "true"
 \end_inset
 
 .
- Circuit operation is started upon detection of 0 to 1 transition on 
+ Calculation is implemented in 
 \family roman
 \shape italic
-enable
+crc_calc
 \family default
 \shape default
- input.
- Input data are processed with 
+ module.
+ Single CRC module (
 \family roman
 \shape italic
-trig
+can_crc
 \family default
 \shape default
- input signal.
- After finishing the calculation, CRC value remains valid until next 0 to
- 1 transition on 
+ entity) calculates all three CRCs required for CAN protocol (with 15, 17
+ and 21 bits long polynomials).
+ CRC wrapper contains 4 instances of CRC modules, thus together there are
+ 12 CRC sequences calculated simultaneously.
+ CRC wrapper further-more contains two stage multiplexor (
+\family roman
+\shape italic
+crc_mux
+\family default
+\shape default
+) which multiplexes between 4 calculated CRC combinationally by 
+\family roman
+\shape italic
+use_rx_crc
+\family default
+\shape default
+, 
+\family roman
+\shape italic
+use_wbs_crc
+\family default
+\shape default
+ signals.
+ Architecture of CRC wrapper module is shown in Figure 
+\begin_inset CommandInset ref
+LatexCommand ref
+reference "fig:crc-block"
+plural "false"
+caps "false"
+noprefix "false"
+
+\end_inset
+
+.
+\end_layout
+
+\begin_layout Standard
+Operation of 
+\family roman
+\shape italic
+crc_calc
+\family default
+\shape default
+ is started upon detection of 0 to 1 transition on 
 \family roman
 \shape italic
 enable
 \family default
 \shape default
  input.
- CRC value is calculated in shift registers 
+ Input data are processed with 
 \family roman
 \shape italic
-crc15_reg
+trig
 \family default
 \shape default
-, 
+ input signal.
+ After finishing the calculation, CRC value remains valid until next 0 to
+ 1 transition on 
 \family roman
 \shape italic
-crc17_reg
+enable
 \family default
 \shape default
-, 
+ input.
+ CRC value is calculated in shift register 
 \family roman
 \shape italic
-crc21_reg
+crc_reg
 \family default
 \shape default
 .
@@ -10317,23 +10397,10 @@ tion to avoid long combinational paths.
 Result CRC values are propagated to outputs 
 \family roman
 \shape italic
-crc15
-\family default
-\shape default
-, 
-\family roman
-\shape italic
-crc17
-\family default
-\shape default
-, 
-\family roman
-\shape italic
-crc21
+crc
 \family default
 \shape default
  of the circuit.
- All three CRC values are calculated at the same time.
  Since CRC calculation in ISO FD and Non-ISO are different, highest bit
  of 
 \family roman
@@ -10357,6 +10424,57 @@ drv_fd_type
  signal which is derived from Driving Bus.
 \end_layout
 
+\begin_layout Standard
+\begin_inset Float figure
+placement h
+wide false
+sideways false
+status open
+
+\begin_layout Plain Layout
+\noindent
+\align center
+\begin_inset Graphics
+	filename ../pics/Visio_generated/crc_wrapper_diagram.pdf
+	lyxscale 20
+	scale 65
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Plain Layout
+\begin_inset Caption Standard
+
+\begin_layout Plain Layout
+CRC wrapper block diagram
+\begin_inset CommandInset label
+LatexCommand label
+name "fig:crc-block"
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+
+
+\end_layout
+
+\begin_layout Standard
+\begin_inset Newpage pagebreak
+\end_inset
+
+
+\end_layout
+
 \begin_layout Subsection
 Bus Sampling
 \begin_inset CommandInset label
@@ -10369,7 +10487,7 @@ name "subsec-Bus-Sampling"
 \end_layout
 
 \begin_layout Description
-File busSync.vhd
+File bus_sampling.vhd
 \end_layout
 
 \begin_layout Description
@@ -10377,14 +10495,14 @@ Used
 \begin_inset space ~
 \end_inset
 
-in CAN_top_level.vhd
+in can_top_level.vhd
 \end_layout
 
 \begin_layout Description
 Entity 
 \family roman
 \shape italic
-busSync
+bus_sampling
 \end_layout
 
 \begin_layout Standard
@@ -10777,7 +10895,7 @@ Interrupt Manager
 \end_layout
 
 \begin_layout Description
-File intManager.vhd
+File interrupt_manager.vhd
 \end_layout
 
 \begin_layout Description
@@ -10785,14 +10903,14 @@ Used
 \begin_inset space ~
 \end_inset
 
-in CAN_top_level.vhd
+in can_top_level.vhd
 \end_layout
 
 \begin_layout Description
 Entity