-
Hi, libmodbus authors,
We're using modbus on our arm linux app to talk to our Soc app, but the Soc app side cannot reserve enough memory for CRC16 tables. Would you consider add a modbus api to a…
-
I have a BBB and I would like it to connect to my PC (Windows 7) by RS232 cable
I completed the BBB libmodbus source code and it could write the register well (modbus_write_register) (I guess), becaus…
-
1. Version: 3.1.2 downloaded and compiled and installed from https://github.com/stephane/libmodbus/archive/master.zip
2. Run on a raspberry pi (4 core ARMv7)
3. RTU backend
4. Debug output:
pi@modb…
-
Hi,
can anyone help me to use libmobbus library in Qt. I am using arm-linux-gnueabihf-gcc 4.6 compiler.
how can i use these library in my application.
-
hi, i'm trying to make the rs485 work with libmodbus, i've followed all the topic, applied the patch but with no results, now, when make i have the following error:
../src/.libs/libmodbus.so: undefin…
-
I am using QT 5.2 with MinGW 4.8 on Windows 7 64bit
CreateFileA() used in _modbus_rtu_connect does NOT work with communication port greater COM9, but only in the release built.
-
Hello,
TL;DR I think it may be useful to have `brew doctor` compare symlinks to "dry run" results of `brew link`.
I was reading `Find the cause of recent link/unlink issues` ( #33328 ), and I'm not …
-
In both functions (modbus.c) there is a check if the pointer ctx is NULL. But some lines above, the pointer is used:
int offset = ctx->backend->header_length;
This makes the test useless because t…
-
I think I've found a bug in this library in RTU mode. When libmodbus receives a respond after a request, it isn't checking whether that request was sent by a desired slave.
It happens for example when…
-
Hello. I keep on getting a segmentation fault when I try to set a response timeout. Can anyone see why? The code compiles. Thank you.
int create_modbus_tcp_connection (void)
{
int eth_conn_st…