Hi Paul,
Even though the official line is "don't use iostructures", I am still
a big fan of this method.
I have attached the header file I wrote for use with some 2 family parts.
You should find it easy to adapt to 1 family or 5 family parts, also
you should double check that everything is in the correct place for
your chip (i.e. this comes with no guarantees, YMMV, etc).
- Wayne
#ifndef IOSTRUCTURES_H_
#define IOSTRUCTURES_H_
typedef union
{
volatile unsigned char _byte;
volatile struct
{
UInt8 _bit0:1,
_bit1:1,
_bit2:1,
_bit3:1,
_bit4:1,
_bit5:1,
_bit6:1,
_bit7:1;
} _bits;
} __attribute__ ((packed)) bitfield8;
#define pin0 _bits._bit0
#define pin1 _bits._bit1
#define pin2 _bits._bit2
#define pin3 _bits._bit3
#define pin4 _bits._bit4
#define pin5 _bits._bit5
#define pin6 _bits._bit6
#define pin7 _bits._bit7
struct gpioPort1
{
bitfield8 in; // addr 0x20
bitfield8 out; // 0x21
bitfield8 dir; // 0x22
bitfield8 ifg; // 0x23
bitfield8 ies; // 0x24
bitfield8 ie; // 0x25
bitfield8 sel; // 0x26
bitfield8 ren; // 0x27
UInt8 pad0[25];
bitfield8 sel2; // 0x41
} __attribute__((__packed__));
struct gpioPort2
{
bitfield8 in; // addr 0x28
bitfield8 out; // 0x29
bitfield8 dir; // 0x2A
bitfield8 ifg; // 0x2B
bitfield8 ies; // 0x2C
bitfield8 ie; // 0x2D
bitfield8 sel; // 0x2E
bitfield8 ren; // 0x2F
UInt8 pad0[18];
bitfield8 sel2; // 0x42
} __attribute__((__packed__));
struct gpioPort3
{
bitfield8 ren; // addr 0x10
UInt8 pad0[7];
bitfield8 in; // 0x18
bitfield8 out; // 0x19
bitfield8 dir; // 0x1A
bitfield8 sel; // 0x1B
UInt8 pad1[39];
bitfield8 sel2; // 0x43
} __attribute__((__packed__));
struct gpioPort4
{
UInt8 pad0[1];// addr 0x10
bitfield8 ren; // 0x11
UInt8 pad1[10];
bitfield8 in; // 0x1C
bitfield8 out; // 0x1D
bitfield8 dir; // 0x1E
bitfield8 sel; // 0x1F
UInt8 pad2[36];
bitfield8 sel2; // 0x44
} __attribute__((__packed__));
struct gpioPort5
{
bitfield8 ren; // addr 0x12
UInt8 pad0[29];
bitfield8 in; // 0x30
bitfield8 out; // 0x31
bitfield8 dir; // 0x32
bitfield8 sel; // 0x33
UInt8 pad1[17];
bitfield8 sel2; // 0x45
} __attribute__((__packed__));
struct gpioPort6
{
UInt8 pad0[1];// addr 0x12
bitfield8 ren; // 0x13
UInt8 pad1[32];
bitfield8 in; // 0x34
bitfield8 out; // 0x35
bitfield8 dir; // 0x36
bitfield8 sel; // 0x37
UInt8 pad2[14];
bitfield8 sel2; // 0x46
} __attribute__((__packed__));
extern volatile struct gpioPort1 port1 asm("0x0020");
extern volatile struct gpioPort2 port2 asm("0x0028");
extern volatile struct gpioPort3 port3 asm("0x0010");
extern volatile struct gpioPort4 port4 asm("0x0010");
extern volatile struct gpioPort5 port5 asm("0x0012");
extern volatile struct gpioPort6 port6 asm("0x0012");
#endif /*IOSTRUCTURES_H_*/
On Mon, Jul 16, 2012 at 4:28 PM, Paul Voith <p...@voithconsulting.com> wrote:
> Hi all,
>
> I am trying to port code from an earlier release of msp430-gcc and
> having trouble.
>
> Specifically now that <io.h> is depreciated I don't know the expected
> mechanism to support the "port1.out.pin0" nomenclature for referencing
> bit I/O.
>
> In the past there was an installation kit for the tool chain on windows.
> I see now that there is a built zip file for windows (Thanks Matthias!).
> Any info available on how to install this? Perhaps just unzip into a
> searchable directory is all?
>
> The have referred to the manual but it seems out of date for these aspects.
>
> Thanks
> -- Paul
>
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