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you can use gpio and make ISR on the master MCU (1 line for SS and 1 line for interrupt request per each slave).
can I use 1 line for both cases(as SS as interrupt)?
like this
and another question for interrupt I have to use simple GPIO interrupt instead of SPI interrupt?
Actually in my case It is bidirectional data transfer for each slave.. a slave can send data to master whenever it want and also for master.. master can send data to any slave whenever it wants and master should receive data from any slave when a slave send data to it by interruption . how can I...
I want to communicate with multiple slaves using SPI protocol. I takes different SlaveSelect lines for respective slave.. I have very beginner in this field I don't understand how to proceed... but I have tested data transfer between single master and single slave before going to multiple...
Thanks for reply
Both RE signals are same as above.. I have observed in Scope.
as per you its working fine then why I am not getting output? as per circuit diagram and code Leds should glow at the initial(when simulation will start) there after Leds will respond according to Buttons...
I am trying to communicate between two Atmega32 through RS485 Driver .. I am using MAX487 IC and Atmega32 MCU, whenever I am simulating on Proteus its not giving any output.. I have done many way but I unable to solve this. Please help me.
Here my schematics
This is my code
#include...
I am doing a project to communicate between two arduino's using MODBUS RTU protocol. I have set One arduino as Master and Other as Slave. slave arduino connected with a potential meter to read the value analog value and store in the holding register of it. Master Arduino connected with a LED ...
I would Like to connect with FRonious solar Inverter through MODBUS TCP with arduino to READ and WRITE register value only. I want to set Arduino as Master and Inverter as slave and I want to use only two functions "Read Holding Registers" and "Write Single Holding Register" function code '3'...
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