Read data in multiple GPIOx_IDR register / Combine GPIO Ports

[SHong.5]

Hi

I'm currently using STM32H743 and I'm trying to Read Data in multiple GPIOx_IDR register

Previously, I was using 16 bits and trying to change into 32 bits for IDR.

When I debug, I could find correct data on SFRs -> Register -> GPIOA -> GPIO_IDR with below code.

previous code

main.h

#define my_data_Pin (0xFFFF) // Use all PA0-PA15 pins

#define my_data_GPIO_Port GPIOA

otherfile.c

void read_my_data(uint16_t *pbuf)

{

*pbuf++ = (uint16_t)my_data_GPIO_Port -> IDR;

}

Now, I'm not sure how to define the code for using all PA0-PA15 pins & PB0-PB15 pins for 32bit data.

 I've tried something like below, but it didn't work.

#define my_data_Pin (0xFFFF) && (0xFFFF)

#define my_data_GPIO_Port GPIOA && GPIOB

Could somebody help me out with this please?

Your help will be highly appreciated.

[TDK]

No. GPIOA only has 16 pins.

[SHong.5]

Thank you so much

Very appreciate your help!

[waclawek.jan]

The FMC could input 32-bit data in parallel on their data inputs, if the used package supports all 32 bits (probably >100 pins); but the latencies may be higher than with GPIO input.

JW

[SHong.5]

Thank you for your answer

How do you input data to FMC though?

Can't find alternative Ports other than GPIO Ports.

[waclawek.jan]

Set up FMC for SRAM and perform a read from that "SRAM". You don't need to actually assign pins to address and control lines.

JW