Hi,
Is there a way to manipulate the port register directly with the PSoC4 platform like the ATmega from the Arduino project?
e.g.
void setup() {
DDRD = B11111111; // set PORTD (digital 7~0) to outputs
}
void loop() {
PORTD = B11110000; // digital 4~7 HIGH, digital 3~0 LOW
delay(1000);
PORTD = B00001111; // digital 4~7 LOW, digital 3~0 HIGH
delay(1000);
}Hi SebDominguez,
That is possible, although not a trivial task.
There are 9 registers associated with each GPIO port…
Many PSoC4 Registers can be referred to as CYREG_<reg name> using the Heltec repo in PlatformIO.
(For Arduino I don’t know…).
Otherwise use the hardware addresses (all peripheral registers are mem mapped).
Example:
*(reg32 *)CYREG_GPIO_PRT0_PC = <value>; // set Port Configuration register of GPIO Port0 to <value>
Is equal to:
*(volatile uint32 *)0x40040008u = <value>;
I found these documents very helpful when playing with some of the peripherals myself:
Infineon-PSoC_4100S_Plus_Registers_Technical_Reference_Manual-AdditionalTechnicalInformation-v04_00-EN.pdf
Thank you so much! That’s exactly what I was looking for.