I need to convert hexadecimal values into signed decimal values,

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VIJETH J SHETTY
VIJETH J SHETTY 2021-12-23
评论： VIJETH J SHETTY 2021-12-24
  1. I have a log file(data.log) which contain arrays of(52X1)hexadecimal values.
  2. Data is saved like this in the log file
F29E031C
F398031C
F3220376
F2220376........
3. first I need to import these values into the matlab
4. Then i need split this 8 charecter cell into 2 rows (like F29E031C = F29E 031C)
5.Finally i need to convert these values into 16bit signed decimal
(for example:
F29E031C = F29E 031C
convetred -3426 796
)

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采纳的回答

Walter Roberson
Walter Roberson 2021-12-23
Ran in:
S = 'F29E031C'
S = 'F29E031C'
typecast(uint16(sscanf(S, '%4x')),'int16')
ans = 2×1
-3426 796
Except replace the assignment to S with
S = fileread('YourFileName.log');
  3 个评论
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Walter Roberson
Walter Roberson 2021-12-23
Ran in:
S = 'F29E031C F398031C F3220376 F2220376'
S = 'F29E031C F398031C F3220376 F2220376'
i16_values = typecast(uint16(sscanf(S, '%4x')),'int16')
i16_values = 8×1
-3426 796 -3176 796 -3294 886 -3550 886
two_columns = reshape(i16_values, 2, []).'
two_columns = 4×2
-3426 796 -3176 796 -3294 886 -3550 886

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