IBRD read hexadecimal data

using Bird reading data of the curve in SONY/TEK_370A test instrument, but the result is not correct.

According to the Bird, the buffer is defined as type string, but the curve data are hexadecimal.

CAN IBRD function hex reading using the buffer of type string.

In the vbib - 32.bas module which is included in your GPIB project, calls all over I/O (ibrdi, ilrdi, ibwrti and ilwrti) are provided for users who need to perform arithmetic operations on data and want to avoid the overhead of conversion of strings required by the Bird and the ibwrt in the format of integer for arithmetic operations.

ibrdi and ibwrti moved from the data in the form of an array of integers, instead of a string. Using these functions, you can access the data directly as integers instead of establish them as characters and then converting each pair of characters in a whole number. Internally, the ibwrti function sends each integer to the GPIB in the low, high-byte byte order. The ibrdi function reads a series of bytes of data in the GPIB and stores them in the array of integers in order of low, high-byte byte.

Hope this information is useful.

gpibtester

Tags: NI Hardware

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