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A simple example to decode and encode the data packet for INS502 device.
from acenav_api import create_parser
parser = create_parser('IN502')
decode_payload = parser.decode('S2', bytes([0x0,0x1,0x2])) # return a dict object
binary_bytes = parser.encode('S2', [1,2,3]) # return as bytes
It also supports to pass a configuration file to the parser, the configuration file contains payload definition and the parser will generate the parser based on the configuration file.
from acenav_api import create_parser
parser = create_parser('IN502-custom', 'path/to/config.json')
# support custom packet type
decode_payload = parser.decode('S2', bytes([0x0,0x1,0x2])) # return a dict object
binary_bytes = parser.encode('S2',[0,1,2]) # return as bytes
A examle to use the library to communicate with the device. It includes command builder, data parser.
# Generate Command Builder
command_builder = create_command_builder('INS502')
# Generate Command Request Bytes
command_bytes = command_builder.create('uB', [
{'paramId':1, 'value':1},
{'paramId':2, 'value':2},
])
# Prepare serial_port or ethernet_port as communicator, then send request bytes
communicator.write(command_bytes)
# Read Response Bytes
read_bytes = communicator.read()
packet_bytes = fetch_last_packet(read_bytes, 'uB')
# Generate Data Parser
parser = create_parser('INS502')
# Decode Response as a dict
update_result = parser.decode('uB', packet_bytes)
The libary predefined configurations for each device, the configuration file is a json file that contains the payload definition for each packet type. It will decode or encode the data based on the configuration file.
User also could pass a custom configuration file to the parser to generate the parser. It is allowed to update the payload definition in the configuration file. It could be useful if the output format is modified or the payload is changed.
uint8
, int8
, uint16
, int16
, uint32
, int32
, uint64
, int64
, float
, double
, string
output_array
,output_update_array
, update_result_array
,parameter_array
,uint8_array
output_array
Packet Odr display array. It is used in lO command response.
Field | Type | Description |
---|---|---|
packet_type | string | Packet Type |
interface_type | int | Interface Type |
output_update_array
Packet Odr update array. It is used in sO command request.
Field | Type | Description |
---|---|---|
packet_type | string | Packet Type |
interface_type | int | Interface Type |
odr | int | Odr |
parameter_array
Parameter display array. It used in gB and uB command request.
Field | Type | Description |
---|---|---|
param_id | int | Param Id |
value | int | Value |
update_result_array
Update result array. It used in uB command response.
Field | Type | Description |
---|---|---|
param_id | int | Param Id |
result | int | Result |
FAQs
Aceinna Navigation System API
We found that acenav-api demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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