MATLAB: HDL CODER. i need to deal with pins of the output port one by one not as 8 bit . how i can do this

hdl coder uutput pinssimulink coder

Hi . I am using simulink hdl coder . but i need to deal with pins of the output port one by one not as 8 bit . how i can do this ?

Best Answer

HDLCoder does support specification of which pin of the 8 bit to use to map to the DUT.

Following example demonstrates how to select different pins of the 8 bit LED and map them to several different DUT ports:

https://www.mathworks.com/help/hdlcoder/examples/running-an-audio-filter-on-live-audio-input-using-a-zynq-board.html

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MATLAB: How to configure a GPIO pin as an external interrupt in a Target Support Package

The attached model configures GPIO0 as external interrupt to trigger the blinking of LED. The custom code in the System Initialize block assigns GPIO0 as an input to trigger the XINT1 interrupt:

EALLOW;                                        
GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 0;            
GpioIntRegs.GPIOXINT1SEL.bit.GPIOSEL = 0;      
EDIS;                                          
XIntruptRegs.XINT1CR.bit.ENABLE = 1;           
XIntruptRegs.XINT1CR.bit.POLARITY = 1;

The ISR toggles the LED based on a rising edge of GPIO00. Connect GPIO to 3V and GND in order to blink the LED.

MATLAB: Simulink HDL Coder – Filter – Fully Serial Interfacing

There is no timing diagram readily available, but if you look at the HDL code, you will see the interface is to provide a clock input that is N times faster (the setting for N is displayed during HDL code generation: Clock Rate is N times the sample rate for this architecture) and feed in the data/samples at 1/N the clock rate.

You can also generate a testbench for the design, which will show how to do this in HDL.

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Related Solutions

MATLAB: How to configure a GPIO pin as an external interrupt in a Target Support Package

MATLAB: Simulink HDL Coder – Filter – Fully Serial Interfacing

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