Thank you btw!
On Tue, Apr 23, 2024 at 9:22 PM David Welshon
wrote:
> I can help test. I'll have to get a device tomorrow from work first. I'll
> let you know when I have it setup.
>
> On Tue, Apr 23, 2024 at 8:09 PM Alan C. Assis wrote:
>
>> David,
>>
>> I fixed the header, but it seems
I can help test. I'll have to get a device tomorrow from work first. I'll
let you know when I have it setup.
On Tue, Apr 23, 2024 at 8:09 PM Alan C. Assis wrote:
> David,
>
> I fixed the header, but it seems someone did a partial port of FreeModbus,
> it is missing many functions for modbus
David,
I fixed the header, but it seems someone did a partial port of FreeModbus,
it is missing many functions for modbus ASCII:
mb_m.c: In function 'eMBMasterInit':
mb_m.c:176:33: error: 'eMBMasterASCIIStart' undeclared (first use in this
function); did you mean 'eMBMasterTCPInit'?
176 |
now it can't find the header file it seems
make[2]: Entering directory '/home/david/nuttxspace/apps/modbus'
CC: mb_m.c
arm-none-eabi-gcc -c -Wstrict-prototypes -Wno-attributes
-Wno-unknown-pragmas -Wno-psabi -Os -fno-strict-aliasing
-fomit-frame-pointer -fno-common -Wall -Wshadow -Wundef
Whoa, you are totally right!
Currently it is this way:
ifeq ($(CONFIG_MODBUS_SLAVE),y)
CSRCS += mb.c
endif
ifeq ($(CONFIG_MB_RTU_MASTER),y)
CSRCS += mb_m.c
endif
But I think it should be:
ifeq ($(CONFIG_MODBUS),y)
ifeq ($(CONFIG_MODBUS_SLAVE),y)
CSRCS += mb.c
endif
HI Alan.
The problem is my hardware is using the ASCII protocol. When I disabled
ASCII and enabled RTU it compiled. What I would like is ASCII protocol.
It seems like mb_m.c is for modbus master and something like the following
should be in the makefile in the modbus folder but I could be
Hi David,
Actually ASCII and RTU enable equivalent/symetric functions.
If you search for CONFIG_MB_ASCII_MASTER inside apps/modbus/ you will see
it just calls the ASCII related functions.
The config for RTU will call the binary (RTU) related functions.
Try to disable ASCII master and enable RTU
When I changed from Modbus ASCII master selected to MOdbus RTU master it
compiled.
Is there extra configuration required for ASCII?
On Tue, Apr 23, 2024 at 1:38 PM Alan C. Assis wrote:
> I just verified the apps/modbus/Makefile and noticed that mb.c is only
> compiled when CONFIG_MODBUS_SLAVE
I just verified the apps/modbus/Makefile and noticed that mb.c is only
compiled when CONFIG_MODBUS_SLAVE is selected.
It means you are enabling the modbus slave or the modbus example (that
assume to be slave).
So, don't enable CONFIG_EXAMPLES_MODBUS, only EXAMPLES_MODBUSMASTER
Maybe we need to
Thanks for the help and great videos and articles Alan!
I just went through the video tutorial again. Unfortunately, modifying my
own config as well as the nucleo-f4x1re:f401-nsh configurations per the
video still can't find the functions
On Tue, Apr 23, 2024 at 12:45 PM Alan C. Assis wrote:
>
Hi David,
These functions are there (see apps/modbus/mb.c for instance).
Did you follow this video tutorial:
https://www.youtube.com/watch?v=FmJLrG4Ldow
Best Regards,
Alan
On Tue, Apr 23, 2024 at 12:41 PM David Welshon
wrote:
> I am trying to get modbus mastermode rs485 example working on
>
I am trying to get modbus mastermode rs485 example working on nucleo-f4x1re
following the example on the youtube channel. I am getting undefined
reference errors during linking and am not sure if I need to modify source
or am missing a configuration option. The device I am interacting with is
oh, that is cool!
Sebastien
On 22/04/2024 23:26, Alan C. Assis wrote:
Dear NuttXers,
Probably all saw about it, case don't here it goes:
https://developer.sony.com/posts/apache-nuttx-powers-worlds-smallest-lunar-robot-in-japans-historic-autonomous-lunar-exploration-mission
This is a small
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