Writing to Digital outputs as bus

DaHu_285096 · ‎Dec 22, 2020

Hi,

I have 8 digital outputs that are on various pins of the 5LP that I want to control as a port using an 8-bit variable in code.

I created a digital output pin then then set number of pins to 8. I named the port "POWER"

Next I selected "Display as Bus" mapping.

Then I went to "pins" tab and set the pin designation.

I am having trouble setting the value of "PORT" in code.

The intellisense in PSOC creator shows "POWER_0, POWER_1 etc but I cannot work out correct syntax to do equivalent of POWER_Write(23) for instance.

Have I set this up wrong or simply not using corect syntax?

Thanks

BiBi_1928986 · ‎Dec 22, 2020

Hello DaHu.

The example by Moto is perfect when you have an entire 8-bit port available.

When you have random GPIO's from several ports, you can use the Control_Reg component. Now you can connect just about any GPIO output pin to the Control Reg output signal.

To write to this component is very simple.

Control_Reg_1_Write(i); /* where i is uint8 */

This is not a bidirectional solution. It is for writing only to the GPIO's.

Good luck with your project.

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Writing to Digital outputs as bus

Writing to Digital outputs as bus

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