Register level programming

[Manoj Hiwarkar]

I want to try register level programming of Nrf52832 i.e low level programming.  I referred your This GitHub repository  but there are sill some libraries used . Is there any other document ?

[awneil]

Manoj Hiwarkar said:

Is there any other document

The document which contains all the register descriptions and operating details is the Product Specification

[Manoj Hiwarkar]

How to read and write the those registers ?

[awneil]

where do you see that?

As noted, https://github.com/andenore/NordicSnippets is a 3rd party repository - nothing to do with Nordic - so you will need to go to the author with any questions about it.

[Manoj Hiwarkar]

Where is this author ? 

[awneil]

Go on - the author is the owner of the Github page.

He is also named in the LICENSE file.

As already noted, he is an independent 3rd party - nothing to do with Nordic.

But all this does assume that you are already familiar with 'C' programming in general, and embedded microcontroller programming in particular.

If (as it seems) that's not the case, I would definitely suggest that this is not the place to start.

[awneil]

Manoj Hiwarkar said:

what is GPIO_PIN_CNF_DIR_Output  ?

You mean in this:

int main(void)
{
  // Configure GPIO pin as output with standard drive strength.
  NRF_GPIO->PIN_CNF[PIN_GPIO] = (GPIO_PIN_CNF_DIR_Output << GPIO_PIN_CNF_DIR_Pos) |
                                (GPIO_PIN_CNF_DRIVE_S0S1 << GPIO_PIN_CNF_DRIVE_Pos) |
                                (GPIO_PIN_CNF_INPUT_Connect << GPIO_PIN_CNF_INPUT_Pos) |
                                (GPIO_PIN_CNF_PULL_Disabled << GPIO_PIN_CNF_PULL_Pos) |
                                (GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos);

Manoj Hiwarkar said:

Is this a register name? I don't think so

No, it's the name of a bit position within the register.

Again, this is basic stuff - you really need to get a good grounding in these basics before jumping into this!

https://www.avrfreaks.net/forum/tut-c-bit-manipulation-aka-programming-101

www.avrfreaks.net/.../2079906

[Manoj Hiwarkar]

Where is GPIO_PIN_CNF_DIR_Output  defined ?

[awneil]

It will be somewhere in that repository, or its specified prerequisites.

Have you read the documentation there ?

Sadly, those links are out-of-date.

Why did you choose this particular repository? It really doesn't seem to be suitable for your level of experience.

Again, this is an independent 3rd-part repository - nothing to do with Nordic. If you want support with that code, you need to find some way to contact the author of that code.