Hi,
actually, I have never tried my w5100 shield on a nucleo board... I
don't know how many versions of this exist, but my shield uses the
dedicated ICSP header (not present on nucleo bords) for the SPI pins -
so I actually cant tell if it is possible to run this shield on nucleo
boards... Always remember, just because something tells us it is Arduino
'compatible' or 'like', it does not mean it will work :-)
Cheers,
Hauke
On 14.06.2017 09:45, Alexandre Abadie wrote:
Hi,
Have a look at the board configuration file and especially this line [1]. You
are setting CS pin to PB6 and the board uses PA4. Otherwise your code looks
good to me.
Maybe Hauke Petersen could help as we wrote the W5100 driver and know Nucleo a
bit.
Alex
[1]
https://github.com/RIOT-OS/RIOT/blob/master/boards/nucleo-f401/include/periph_conf.h#L173
----- Mail original -----
Hi,
@Alex: Thank you very much for your support!
I've moved my code to
https://github.com/Panther2804/stm32/blob/master/F401/riot-f401-w5100/main.c
- the code is a modified version of RIOT/examples/gnrc_networking.
However, it is still not working, i.e. when I try
make flash
The minicom terminal tells me:
[w5100] error: no SPI connection
Here are the points are not sure about:
1. I haven't fully understood how to copy
drivers/w5100/include/w5100_params.h and use that. Instead I have
modified the file in-place and added the following
#define W5100_PARAM_SPI (SPI_DEV(0)) // ???
#define W5100_PARAM_SPI_CLK (SPI_CLK_5MHZ)
#define W5100_PARAM_CS (GPIO_PIN(PORT_B, 6)) // PB_6
#define W5100_PARAM_EVT (GPIO_PIN(PORT_A, 10)) // PA_10
2. I'm not sure if it is my (i.e. main.c) job to initialize SPI and/or
GPIO and/or W5100_PARAM_CS. I've written the init() method in main.c for
this purpose. But maybe it is 'too late' then?!?
Kind regards,
aanno
Am 12.06.2017 um 19:14 schrieb Alexandre Abadie:
Adding a missing information in my previous reply about adding the module
(sorry):
Simply add USE_MODULE += w5100 in the application Makefile:
examples/minimal/Makefile.
Alex
----- Mail original -----
Hi,
Welcome and thanks for your interest in RIOT !
----- Mail original -----
I would like to run the gnrc_minimal example on my nucleo-f401 board.
The board does not have ethernet BUT I use the arduino W5100 shield with
it (https://www.arduino.cc/en/Main/ArduinoEthernetShieldV1). Hence
cd examples/gnrc_minimal
BOARD=nucleo-f401 make clean all flash term
You are building your application the right way.
But I see only the "RIOT network stack example application" message and
no "My address is ...".
From compilation output it seems to be that w5100 is NOT compiled at
all. As I has expected, there is still something missing.
Here are my questions:
1. I have to tweak the build to include the w5100 compilation. How to do
this?
Yes, you have to import the module corresponding to the W5100 driver.
Simply
add
USE_MODULE += w5100
2. I have to use (and initialize) the SPI1 of the nucleo-f401 board. How
to do this?
The initialization is done automatically, since the 'minimal' example uses
the 'auto_init' module.
3. Finally, I have to configure that the the SPI1 of nucleo-f401 it the
'underlying' SPI of w5100 and that the w5100 should be used for
networking. How to do this?
You can copy the file drivers/w5100/include/w5100_params.h in
examples/minimal and edit the parameters to your needs. Otherwise you can
directly edit the file in the drivers directory but this is not considered
as good practice.
We know that this part of RIOT is not very well documented. An issue
exists
to keep track of this weakness [1]
Regards,
Alex
[1] https://github.com/RIOT-OS/RIOT/issues/7001
Kind regards,
aanno
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