Sources palette
xcos
Most of blocks of the Source palette can be viewed as data generators. That palette also contains blocks to read data from files and input ports used in superblocks.
The blocks of that palette does not have regular input ports.
CLKINV_f - Activation Input Port
CLOCK_c - Activation Clock
CONST_m - Constant
Counter - Counter
CURV_f - Signal Generator (defined by a curve)
FROMWSB - Data from Scilab Workspace to Xcos
GENSIN_f - Sine wave generator
GENSQR_f - Square Wave Generator
IN_f - Regular Input Port
INIMPL_f - Implicit Input Port
Modulo_Count - Modulo Counter
RAMP - Ramp Function
RAND_m - Random Generator
READAU_f - Read AU Sound File
READC_f - Read Binary Data
RFILE_f - Read From File
SampleCLK - Sample Time Clock
SAWTOOTH_f - Sawtooth Generator
Sigbuilder - Signal Creator/Generator
STEP_FUNCTION - Step Function
TIME_f - Simulation Time
TKSCALE - Adjust constant value with a tk widget