leahi-dialin / leahi_dialin / dd / modules

substitution_pump.py

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Wednesday 01 Jul
3:02 pm

Zoltan Miskolci

The approach of what this code does and the conversion module are similar in function but a differ on maintenance and flexibility. 1. The conversion module's bytearray to value methods work, but th...

The approach of what this code does and the conversion module are similar in function but a differ on maintenance and flexibility.
1. The conversion module's bytearray to value methods work, but they require manual logistic around the indexing. It's the user's responsibility to handle where the reading starts and you need to code the handler for that (previous approach with MsgFieldPositions), It's inflating the method. I worked hard to remove the need for indexing where the value starts. Instead of the previous struct.unpack approach, where you needed to maintain the type, you will be needing to maintain the conversion methods that are being called, so it would be the same as before, you still need to mind the indexing, which was the main reason of changing from this approach.

2. In the current approach, you declare the type and pass it to a processor that dynamically handling the unpack type (based on the set datatype) and the indexing for that. This works much better and easier to maintain, as you can just insert a new value when it's added to the FW, and don't need to adjust all your indexes for the reading.

Example #1, changing build type from U16 to U08:

  • with the conversion approach, you need to change the function used, and update the starting index for all the following methods.
  • with the current approach you change the Datatype.U16 to Datatype.U08 and that's all you need to do.


Example #2: adding a new variable fpga_micro after fpga_minor, with U08 type:

  • with the conversion approach, you add the bytearray_to_byte, update the indexes for all the following reads.
  • with the current approach you insert an element after the fpga_minor with a value ('fpga_micro', Datatype.U08), and nothing more needed
12:33 pm

Behrouz NematiPour

RESOLVED for now.

RESOLVED for now.

12:32 pm

Behrouz NematiPour

I would not do that because the function names and messages for each project should be different to avoid confusion. I think that is fine for now. RESOLVED.

I would not do that because the function names and messages for each project should be different to avoid confusion.
I think that is fine for now.

RESOLVED.

12:11 pm

Behrouz NematiPour

So the same channels are used for both the Leahi and Denali? I am not talking about how collisions are handled; that is handled by the CAN driver, not the FW or SW. My point is that the CAN Channel...

So the same channels are used for both the Leahi and Denali?
I am not talking about how collisions are handled; that is handled by the CAN driver, not the FW or SW.
My point is that the CAN Channels by themselves do not have the meaning we want; they are only a priority.
As we defined them, we gave them a meaning as a category; therefore, it is better to name them the Denali/Leahi Channels rather than the CAN Channels.

12:06 pm

Behrouz NematiPour

RESOLVED.

RESOLVED.

12:06 pm

Behrouz NematiPour

def fp_versions(self, major: int, minor: int, micro: int, build: int, fpga_id: int, fpga_major: int, fpga_minor: int, fpga_lab: int, compatibility_rev: int...
def fp_versions(self, major: int, minor: int, micro: int, build: int,
                     fpga_id: int, fpga_major: int, fpga_minor: int, fpga_lab: int,
                     compatibility_rev: int):
     """
     Broadcasts the current dd Version Data (Msg ID: 0x0F, 15)
     Args:
         @param major: (uint) - Major version number
         @param minor: (uint) - Minor version number
         @param micro: (uint) - Micro version number
         @param build: (uint) - Build version number
         @param fpga_id: (int) - FPGA id version number
         @param fpga_major: (int) - FPGA Major version number
         @param fpga_minor: (int) - FPGA Minor version number
         @param fpga_lab: (int) - FPGA Lab version number
         @param compatibility_rev: (uint) - The FWs/UI compatibility revision
     @return: None
     """
     if not self.can_enabled:
         raise ValueError("CAN Interface is not enabled")

     payload =  conversions.unsigned_byte_to_bytearray   (major            )
     payload += conversions.unsigned_byte_to_bytearray   (minor            )
     payload += conversions.unsigned_byte_to_bytearray   (micro            )
     payload += conversions.unsigned_short_to_bytearray  (build            )
     payload += conversions.unsigned_byte_to_bytearray   (fpga_id          )
     payload += conversions.unsigned_byte_to_bytearray   (fpga_major       )
     payload += conversions.unsigned_byte_to_bytearray   (fpga_minor       )
     payload += conversions.unsigned_byte_to_bytearray   (fpga_lab         )
     payload += conversions.unsigned_integer_to_bytearray(compatibility_rev)

     message = CAN.CanMessage.build_message(
                                         channel_id=CAN.CanChannels.fp_sync_broadcast_ch_id,
                                         message_id=msg_ids.MsgIds.MSG_ID_FP_VERSION_RESPONSE.value,
                                         payload=payload)

     self.can_interface.send(message, 0)
Monday 29 Jun
9:44 am

Zoltan Miskolci

Being generic is the whole point of it. It was renamed because this is a dialin dedicated to Leahi unit and calling the messages DenaliMessage is misleading. It was renamed to CanMessage for 2 reas...

Being generic is the whole point of it.
It was renamed because this is a dialin dedicated to Leahi unit and calling the messages DenaliMessage is misleading.
It was renamed to CanMessage for 2 reason:
1. This is a Leahi only dialin, so there is no need to differentiate between different type of Can Messages as there would be only 1 type
2. Calling it CanMessage will make it more future compatible when the dialin get copied over for a new unit development (unlikely in the foreseeable future but possible), removing the need to rename it again

9:43 am

Zoltan Miskolci

There is no Leahi or Denali CANChannels. There are CAN channels and the naming is what that channel is being used for. The collision occurs in the FW and the FW handles it before sending out a mess...

There is no Leahi or Denali CANChannels.
There are CAN channels and the naming is what that channel is being used for.
The collision occurs in the FW and the FW handles it before sending out a message.
When reading a CAN, there are no collisions, so there are no priorities. So I have no clue what you want here.

9:39 am

Zoltan Miskolci

done

done

9:39 am

Zoltan Miskolci

I have no idea what you are referring to as the link is not working. The need to define the type and the name of the data being read is necessary, so if it's not here it will be somewhere else, tha...

I have no idea what you are referring to as the link is not working.
The need to define the type and the name of the data being read is necessary, so if it's not here it will be somewhere else, that we can't escape.
Exporting that to different files won't serve a purpose and will only increase complexity as when debugging you will need to reference a separate file.
For the defs it made sense as they are used multiple places, but what a message contains is a single use place, so storing it separately is meaningless as it won't have any use outside of this single function.

Thursday 25 Jun
5:33 pm

Behrouz NematiPour

I am happy to see that this old code is improving. I would recommend using the Conversion module instead of strings and DataTypes, as it handles everything automatically. Examples can be found in t...

I am happy to see that this old code is improving.
I would recommend using the Conversion module instead of strings and DataTypes, as it handles everything automatically.
Examples can be found in the following file in this CR:
https://devapps.diality.us/cru/#LEAHI-DIALIN-LDT-4484-1CFR-84688

5:19 pm

Behrouz NematiPour

Please add a docstring for the function. including the intention and parameters with their intentions.

Please add a docstring for the function.
including the intention and parameters with their intentions.

5:17 pm

Behrouz NematiPour

Same for CanChannels. The Channels we are referring to here are Leahi's or Denali's. Channels mainly have no meaning beyond their priorities when a collision occurs.

Same for CanChannels.
The Channels we are referring to here are Leahi's or Denali's.
Channels mainly have no meaning beyond their priorities when a collision occurs.

5:15 pm

Behrouz NematiPour

I recommend DenaliMessage or LeahiMessage, as CanMessage is generic, whereas Leahi/Denali indicate that the protocol is also implemented in the message we are sending. I'm not sure why the name was...

I recommend DenaliMessage or LeahiMessage, as CanMessage is generic, whereas Leahi/Denali indicate that the protocol is also implemented in the message we are sending.
I'm not sure why the name was changed, as it is a lot of change.
Also, there is no CAN Message.
There is a CAN Frame and a Leahi/Denali Message.

Tuesday 23 Jun
10:40 am

Zoltan Miskolci

updated

updated

10:32 am

Raghu Kallala

Remove extra spaces before comment

Remove extra spaces before comment

Thursday 11 Jun
1:30 pm

Sean Nash

Wednesday 10 Jun
1:21 pm

Michael Garthwaite

9:44 am

Zoltan Miskolci

Tuesday 09 Jun
11:40 am

Vinayakam Mani

10:53 am

Michael Garthwaite

fixed. thanks!

fixed. thanks!

Monday 08 Jun
11:20 am

Dara Navaei

LEAHI-DIALIN-LDT-4484_[Dialin] Create Dry Self Test module in dialin
LEAHI-DIALIN-LDT-4484_[Dialin] Create Dry Self Test module in dialin
Thursday 04 Jun
11:09 am

Michael Garthwaite

LDT-4001: added pump id to sensor list in message handler

Options
    • -4
    • +4
    ./substitution_pump.py
10:37 am

Michael Garthwaite

LDT-4001: fixed naming of data structures

Options
    • -4
    • +6
    ./substitution_pump.py
  2. … 1 more file in changeset.
9:40 am

Michael Garthwaite

LDT-4001: updates to sub pump based on refactoring that was merged into staging.

Options
    • -18
    • +35
    ./substitution_pump.py
  2. … 3 more files in changeset.
Tuesday 02 Jun
9:30 am

Zoltan Miskolci

I would like to ask to check out the substitution pump on the develop branch and update it based on that. There are some changes thanks to the merging of the refactor.

I would like to ask to check out the substitution pump on the develop branch and update it based on that.
There are some changes thanks to the merging of the refactor.

Monday 01 Jun
11:29 am

Vinayakam Mani

looks there are some more payloads in publish function. please add the other parameters here.

looks there are some more payloads in publish function. please add the other parameters here.

Friday 29 May
11:49 am

Michael Garthwaite

LDT-4000: updated message IDs. Updated test config for beta 1.9 and 2.0. implemented substitution pump module

Options
    • -0
    • +112
    ./substitution_pump.py
  2. … 2 more files in changeset.
11:02 am

Dara Navaei

LEAHI-DIALIN-LDT-4001_HDF - FW Implementation - 2/4:
LEAHI-DIALIN-LDT-4001_HDF - FW Implementation - 2/4: