Where can I find documentation on SPI2STATbits?

Question

I've recently come across spi2statbits in the following function:

int WriteSPI2( int data)

{
    int f;
    SPI2BUF = data;                 // write to buffer for TX
    while( !SPI2STATbits.SPIRBF)  
    {f=1;}// wait transfer completion
    return SPI2BUF;                 // read the received value
} // WriteSPI2

I'm using the above in conjunction with a PIC24FJ128GA010 project.

I've been searching around to find more about SPI2STATbits but haven't found actual documentation. I assume this is a fairly basic requirement.

Can someone direct me to the correct documentation?

mvorisek · Accepted Answer · 2018-01-11T15:19:46.137

3

See page 130 of the datasheet , look for SPIxSTAT.

For the particular device, do a search for SPI2STATbits in all included header files.

It's in p24FJ128GA010.h as

#define SPI2STAT SPI2STAT extern volatile uint16_t SPI2STAT __attribute__((__sfr__)); __extension__ typedef struct tagSPI2STATBITS {...

edited Jan 11 '18 at 15:19

answered Jan 06 '18 at 11:37

mvorisek

3,290
2
18
53

If this post answers, please mark this post as an answer. – mvorisek Jan 06 '18 at 11:48
what is the difference between SPIxSTAT and SPIxSTATbits? I can't watch SPIxSTATbits but I can watch SPIxSTAT. SPIxSTATbits is not listed in the documentations.... – SeanJ Jan 06 '18 at 12:19
`SPIxSTATbits` are only used in code to refer to the bits of `SPIxSTAT` – mvorisek Jan 06 '18 at 12:23
Where can I find information about keywords such as bits? – SeanJ Jan 06 '18 at 12:32
Do a search for `SPI2STATbits` in all included header files. – mvorisek Jan 06 '18 at 12:40
`SPI2STATbits` is a structure that breaks up `SPI2STAT` into its individual bits. If you are using MPLAB X, right right-click and select "Nagivate|Go to declaration". You should have xc.h as an include file (in turn, it selects the specific register definition file for your processor). – EBlake Jan 08 '18 at 04:13
wow! Thanks! It's in `p24FJ128GA010.h` as `#define SPI2STAT SPI2STAT extern volatile uint16_t SPI2STAT __attribute__((__sfr__)); __extension__ typedef struct tagSPI2STATBITS {` CAn you add above to answer and I will accept? – SeanJ Jan 11 '18 at 14:22

Where can I find documentation on SPI2STATbits?

1 Answers1