AT24C512 + BMI160 + NRF52

Question

Hi, 
 I am using nRF52832 soc to develop my project. with nRF5_SDK_15.3 . SES file 
 I need to connect both BMI160 accelerometer sensor and AT24C512 EEPROM ic in TWI. 
 how to use TWI with this. guide me to use both at a time. 
 BMI160 separately i can read the data. 
 but i can't read while connect to AT24C512

Øyvind · Accepted Answer

Hello, The nRF5 SDK includes several examples of how to use the TWI peripheral. 
 examples\peripheral	wi_master_using_nrf_twi_mngr 
 examples\peripheral	wi_master_with_twis_slave 
 examples\peripheral	wi_scanner 
 examples\peripheral	wi_sensor 
 A good place to start is with the TWI Scanner to ensure you can find the devices on the bus. Kind regards, Øyvind

awneil · Answer

Øyvind said: I recommend reading the TWIM chapter and the TWIS chapter in the product specification for nRF52832 
 +1 
 But could you clarify the distinction between those and the " TWI &mdash; I 2 C compatible two-wire interface " - also in the product specification for nRF52832? 
 I find it unclear whether it is a separate module, or if TWIM and/or TWIS are just "operating modes" of the TWI module? 
 Or TWI is an "operating mode" of the TWIM module? 
 Or what?? 
 The block diagram is not helpful as it shows no "TWI" module. 
 EDIT 
 and are there two TWIS modules plus two TWIM modules - or is it just a total of two modules, each of which can be either TWIM or TWIS ? 
 EDIT 2 
 The block diagram clearly suggests that there two TWIS modules plus two TWIM modules: 
 
 but the ' Key Features ' at the start of the Product Specification says: 
 
 Up to 2 x I2C compatible 2-wire master/slave 
 
 So it looks like the block diagram is misleading?

AT24C512 + BMI160 + NRF52

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