NEOCORTEC A/S NC2400C1 Manual De Usuario

 

 

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neo.cortec

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Code  Length  Data 

Description 

0x50 

2 

ID(2)  

Acknowledge for previously sent 
packet 

0x51 

2 

ID(2)  

Non-Acknowledge for previously 

sent packet 

0x52 

n 

Header + Payload  Data received from another device 

(see below) 

0x53 

n 

Header + Payload  Data received from another device 

with HAPA (see below) 

 

0x50: 
Receiving an Acknowledge is a guarantee that the recipient (with address = ID) has 

received the packet sent previously in acknowledged mode.  
Acknowledges from a recipient node is received for packets in the order they were 
enqueued. 
0x51: 
Receiving a Non-acknowledge only happens if the maximum global retries were 

exceeded. This can happen if, for example, the destination node has been destroyed, or 
otherwise has been removed from the network. 
0x52: 
Header + Payload data is: Originator ID(2) + Package Age(2) + Port(1) + Payload 
Data(max. 19) 
0x53: 
Header + Payload data is: Originator ID(2) + High Accuracy Package Age(4) + Port(1) + 
Payload Data(max. 15) 
 
In general: 
Packet Age is a measure from the point in time where the data was enqueued at the 
originator, to the time when the packet was delivered to the host application at the 

destination node. 
For the UART interface, enqueue happens at the time the external controller has send 
the package through the UART interface, and dequeue happens at the time when the 

data is transmitted over the UART interface to the external controller. Packet Age has a 

resolution of 0.125 seconds, and as such the value received should be multiplied with 
0.125 seconds to get a time indicator in seconds.