LPC Microcontrollers中的主题 Re: Hardware Peripheral Write using Address

Hardware Peripheral Write using Address

athmesh_n — Sat, 08 Dec 2018 05:27:41 GMT

I'm working on MODBUS protocol, where I have to write to pin using address given by master. Is it possible to write to a peripheral using peripheral address?

IDE: MCUXpresso

Controller : LPC1517

Brief:

I would like to write to GPIO PIN PIO1_0, whose byte address is 0x1c000020. So, in order to make the pin high, should I write to address 0x1c000020? I tried using the following code:

uint8_t volatile *gpio = (uint8_t *)0x1c000020;
*gpio = 0x1;

Is it possible to do so?a

Re: Hardware Peripheral Write using Address

Alice_Yang — Mon, 10 Dec 2018 14:28:02 GMT

Hello ATHMESH NANDAKUMAR ,

Yes, you can.

Do you have any problem when you using it ?

Have a great day,
TIC

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Re: Hardware Peripheral Write using Address

athmesh_n — Mon, 07 Jan 2019 10:28:14 GMT

No I used a different method