Configuring twi slave and twi master in one chip

RE: Configuring twi slave and twi master in one chip

sk — Fri, 26 Jun 2020 09:37:38 GMT

in nrf52810 having also two different drivers available like TWIM with easyDMA and TWIS with easyDMA so why we cannot used both config in single chip?

RE: Configuring twi slave and twi master in one chip

Turbo J — Fri, 26 Jun 2020 09:26:12 GMT

Nope. Not possible.

RE: Configuring twi slave and twi master in one chip

sk — Fri, 26 Jun 2020 09:17:13 GMT

It means, i want to used TWIM with 1 instance and TWIS in 2nd instance at nrf52832.

If i wanted to do twis and twim with nrf52810 there is any possiblty?

RE: Configuring twi slave and twi master in one chip

Turbo J — Thu, 25 Jun 2020 14:41:24 GMT

[quote userid="84115" url="~/f/nordic-q-a/63029/configuring-twi-slave-and-twi-master-in-one-chip"]i want to used iic for different taske at single time with single controller. [/quote]

No dice. The NRF52810 has only one peripherial that can work as either TWIM or TWIS, but not both at the same time.

Thus you will have to use one of the "bigger" chips like NRF52832 which has two TWI peripherials.

Other workaround: Implement the I²C master completely in software by toggeling GPIOs properly.