en:software:qview:qview_6:qcl_library:bc21inspect

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en:software:qview:qview_6:qcl_library:bc21inspect [2017/02/07 18:03] – created qem103en:software:qview:qview_6:qcl_library:bc21inspect [2019/08/29 17:01] (current) – external edit 127.0.0.1
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 +====== BC21Inspect ======
 +
 +**B = **//Buffer//
 +
 +**C = **//Calculation functions//
 +
 +The BC21Inspect function __allows you to acquire a data in FIFO memory without affecting the memory__. The data is not extracted but only acquired. Through the input variable index you can capture a different data other than the first inserted, index represents the number of operations would be required to extract the data with the BC21Pop function.
 +
 +===== IMPLEMENTATION =====
 +
 +**BC21Inspect (Buffer, Index, Element, ErrorCode, head, tail)**
 +
 +Parameters:
 +
 +^IN/OUT^VARIABLE TYPE^EXAMPLE NAME^DIM^^
 +|  IN  |  ARRGBL/ ARRSYS  |  Buffer  |  B/W/L/S  |Array containing the Buffer|
 +|  IN  |  GLOBAL  |  Index  |  L  |Variable containing the index of the value to be captured. It is the number of operations required to extract data from the FIFO.|
 +|  IN  |  GLOBAL  |  Element  |  L/S/W/B  |Variable containing the value to be placed in the buffer|
 +|  OUT  |  GLOBAL  |  ErrorCode  |  F  |Variable containing the error possibly occurred during insertion of the value|
 +|  IN  |  GLOBAL / SYSTEM  |  head  |  L  |Internal index|
 +|  IN  |  GLOBAL / SYSTEM  |  tail  |  L  |Internal index|
 +
 +==== Error ====
 +
 +After calling the function if there are any errors the error (ErrorCode) variable takes the following values:\\
 +0 - No error\\
 +1 - No data in the FIFO.\\
 +2 - Invalid index.