Need clarification for Queue array

chioski

Hi.,


I am doing RFID project using nRF24L01 IC.I developed this project firmware in c language.
My question is

1)If the 1000 RFID tag transmits data in single reader,we already stored all tag ID into the Reader.

2)Now i wrote the C code for the,stored single tag ID into the reader,but i am going to store 1000 tag ID into the RFID Reader.

3)So i planned to use queue array concept,Please suggest me how can i store more tag ID using queue array concept using C language?

Best Regards.,
Chioski

SRLM

What are you asking? Are you asking how to implement a queue for the tags? I'd implement it as an array of arrays, eg.

char queue[QUEUE_LENGTH][TAG_LENGTH]

Then, you can use a standard queue algorithm to add and delete from the queue.

chioski

Thanks for the prompt reply.

What you meant by Queue_length?Its Tag ID or other?
Please explain the Tag_length?

SRLM

The code that I posted declares a two dimensional array. It sets the "unit" of the array to be TAG_LENGTH bytes big, and sets QUEUE_LENGTH spots in the queue.

Constants are typically capitalized in C, and I've followed that notation here.

chioski

Thanks for your explanation.,

1)I am clear the TAG_LENGTH means bytes big,for eg (0x32,0x56,0x11,0x98,0x72) this tag length is 5.
2)I had a little bit doubt in queue_length,did you mean Queue length = No.of Tags.
(if we use 10 tags,the queue length is 10)Am ryte.
Kindly clarify this..

Best Regards.,
Chioski

chioski

Please clarify the above query....

Mike Green

Do you understand what a queue is? Do you understand how they are implemented? TAG_LENGTH is the number of bytes used to store a tag. QUEUE_LENGTH is the size of the queue. In your case, it's the number of tags that can be stored in the queue.