Hello everyone
I'm trying to connect 2 board nRF52-DK (PCA10040) via modbus RTU using zephyr example (client and master in 2 different board).
I'm using visual studio code and SDK 2.2.0-rc1
The steps I took are:
1) create application from example starting from modbus rtu example (1 for client and 1 for master)
2)edit build application with nrf52dk_nrf52832
2.1) cross connected p0.06 and p0.08 the boards in order to have bus connection
3)build
4)debug
from client side i get
Connected via Serial Port with settings COM8 115200 8n1 rtscts:off
*** Booting Zephyr OS build v3.2.99-ncs1-rc1 ***
[00:00:00.389,526] <err> modbus_serial: Failed to configure UART
[00:00:00.389,556] <err> modbus: Failed to init MODBUS over serial line
[00:00:00.389,556] <err> mbc_sample: Modbus RTU client initialization failed
from master side i get
Connected via Serial Port with settings COM8 115200 8n1 rtscts:off
*** Booting Zephyr OS build v3.2.99-ncs1-rc1 ***
[00:00:00.392,517] <err> modbus_serial: Failed to configure UART
[00:00:00.392,517] <err> modbus: Failed to init MODBUS over serial line
[00:00:00.392,547] <err> mbs_sample: Modbus RTU server initialization failed
*** Booting Zephyr OS build v3.2.99-ncs1-rc1 ***
from both example documentation, non clear the meaning and how to find what i have to do. What is de-gpios? how can i define my value, and what is it?
This example uses DE signal, which is controlled by pin D9 on the JOY-IT shield. For other shields, de-gpios
property must be adapted or removed in the application overlay file samples/subsys/modbus/rtu_server/app.overlay
best