Are ARM Cortex M0 peripherals standard across manufacturers?

They are NOT standard - the NVIC controller and the system timer (only good for making a regular interrupt) are ARM standard but the other stuff is all manufacturer specific.

I think it's the Nordic processor that is connected to the IO pins (can't be sure without making more effort since there is no easy to find MicroBit schematic on the web - perhaps someone knows where there is one.).

There is quite a bit of information on the Nordic website but its certainly at nothing like the level of detail that Atmel, Microchip, ST or TI (to name a few) offer. Shame on you Nordic - I hope you are listening !!

Did you find the 1.5Mbyte "Reference Manual" ?

You will need to work quite hard at getting these peripherals to do useful stuff.

MK

They are NOT standard - the NVIC controller and the system timer (only good for making a regular interrupt) are ARM standard but the other stuff is all manufacturer specific.

I think it's the Nordic processor that is connected to the IO pins (can't be sure without making more effort since there is no easy to find MicroBit schematic on the web - perhaps someone knows where there is one.).

There is quite a bit of information on the Nordic website but its certainly at nothing like the level of detail that Atmel, Microchip, ST or TI (to name a few) offer. Shame on you Nordic - I hope you are listening !!

Did you find the 1.5Mbyte "Reference Manual" ?

You will need to work quite hard at getting these peripherals to do useful stuff.

MK

Your guess is as good as mine, but I'd think the NXP/Freescale KL26Z  is attached to IO, and the Nordic is the one handling wireless comms.

no, I'm wrong

TFW the best specs are found on wikipedia:

NXP/Freescale KL26Z [....] used as a communication interface between USB and main Nordic microcontroller.

Thanks. Suspected that would be the answer.

It is the Nordic BLE chip that drives the IO pins. I've only looked at the device datasheet so far and it mysteriously refers to routing the peripherals to any IO pin without saying how to do it. I wanted to see if it could do PWM that could then be routed to the micro:bit edge connector.

I'll dig around and see what else I can find on their site. I should be able to find a whole reference manual if I try.

This is the closest to a Ref Manual that I could find for that controller family:

http://infocenter.nordicsemi.com/pdf/nRF51_RM_v3.0.pdf

Thanks Jan. That looks like it has a fair amount of information about the peripherals and the interconnect.

Next step will be to see if I'm allowed to talk to any of it from the code side. No point in learning how the peripherals work if there's no chance of talking to the registers.