how to toggle spim1 and twim1

RE: how to toggle spim1 and twim1

talha — Wed, 24 Aug 2016 09:39:29 GMT

First of all, you cannot toggle the #define EXAMPLE commands because they are not commands for your program file, they are commands for the compiler. When the compiler is compiling your C code and turning it into a .hex file, it does not include those statements. So there is no way to toggle them while the program is running.

If the peripherals have the same address I don't think you can use them. I am not really familiar with SPI but in TWI (i2c) you are not supposed to use two devices with the same 7-bit device_address at least that is what I am told. If you are using multiple EEPROMs for instance, they have additional address bits just for you to configure and differentiate its 7-bit address from other same type EEPROMs.

I don't know if this was helpful at all. Maybe if you can explain which peripherals you are using I can help more.

RE: how to toggle spim1 and twim1

Zou — Wed, 24 Aug 2016 07:17:46 GMT

the ID is the same ,so the peripherals base address is the same. in the datasheet 8.4 has a table to introduction .

RE: how to toggle spim1 and twim1

talha — Wed, 24 Aug 2016 06:59:57 GMT

you mean their 7-bit id is the same?

RE: how to toggle spim1 and twim1

Zou — Wed, 24 Aug 2016 05:08:46 GMT

maybe i have not expressed clearly.In my project , I have to use three spi in master mode and three twi in master mode to communicate with my sensors, but when i use them at the same time , the NRF52832 is not support ,because some of them are shared the same ID. i don't know how to allocate the shared ID resources.

RE: how to toggle spim1 and twim1

talha — Tue, 23 Aug 2016 09:21:44 GMT

I think what you need to do is to use TWI0 along with SPI1 or TWI1 along with SPI0. Would this solve your issue?

As I know you cannot use TWI1 with SPI1 but you can use TWI0 with SPI1.