Getting the MAC address...
There is a call ready to go for this.
It is in the bootloader API
unsigned char * gethwaddr(int iface)
unsigned char * myMAC = gethwaddr(0);
myMAC is now a pointer to the binary MAC address.
You may have to include the following lines near the top of your
_bsc1 ( unsigned char *,gethwaddr,int,a1)
and if you cant find bootstd.h it is in src/boottools/include
The actual assembler code is in bootstd.h
but you should not have to worry about all that.
#define _bsc1(type,name,atype,a) \
type name(atype a) \
register long __res __asm__ ("%d0") = __BN_##name; \
register long __a __asm__ ("%d1") = (long)a; \
__asm__ __volatile__ ("trap #2" \
: "=g" (__res) \
: "0" (__res), "d" (__a) \
: "%d0"); \
BTW this is for the uCsimm and not coldfire I hope..
Joaquin Garay wrote:
> If I need the MAC address of the ucsimm, I can think of two ways of
> making it:
> - Find where is that address stored (in the registers of the cs8900 I
> think) and change the value asigned to the pointer
> - Access the MAC address through the bootloader API and the gethwaddr()
> I prefer doing it the second way, but I have no idea about how make it.
> The only information about it I've found is that coming with the ucsimm
> manual and have to say that I don't know what it's saying. Do I have to
> code in asembler in order to put the function number and args in the
> specified registers and take the results from another one? If anybody
> have accessed another function through the bootloader API, I would
> appreciate having a look to the way it's called.
> Any suggestions will be welcomed
> This message resent by the email@example.com list server http://www.uClinux.com/
This message resent by the firstname.lastname@example.org list server http://www.uClinux.com/
This archive was generated by hypermail 2b30 : Sun Apr 07 2002 - 00:01:43 EST