Notest eng 6596 gen sp from catalog

What I meant was: instead of 

    volt_type = [('INVALID', ''), # id = 0
            ...
            ('TINYINT', 'byte'), # id = 3
            ('SMALLINT', 'short'), # id = 4    ...
    ...
    para_types.append(volt_type[...][1])

how about:

    volt_type = ['', # id = 0, INVALID
            ...
            'byte', # id = 3, TINYINT
            'short', # id = 4, SMALLINT
    ...
    para_types.append(volt_type[...])