LPC55S69 : Write/Read Gpio lines by different Cores

EugeneHiihtaja — Mon, 04 Nov 2019 14:01:20 GMT

Hello !

Do I understand right and it is no any problem if I would like to Read/write different GPIO pins inside one group 0 or 1

at the same time ?

static inline void GPIO_PinWrite(GPIO_Type *base, uint32_t port, uint32_t pin, uint8_t output)
{
base->B[port][pin] = output;
}

static inline uint32_t GPIO_PinRead(GPIO_Type *base, uint32_t port, uint32_t pin)
{
return (uint32_t)base->B[port][pin];
}

I can see each pin has own address and I can freely write PIO0_17 pin from Core0

and PIO0_18 from Core1 without any faults.

Is this so ?

Or how to safely read/write individuals GPIO pins from Core0 and 1 at the same time ?

Regards,

Eugene

Re: LPC55S69 : Write/Read Gpio lines by different Cores

Sabina_Bruce — Tue, 05 Nov 2019 01:11:40 GMT

Hello Eugene,

That is correct you can handle the pins individually as you mentioned above.

Best Regards,

Sabina