#include "fw_conf.h"
#include "fw_types.h"

Macros
#define	SPI_RxTxFinished() (SPSTAT & 0x80)

#define	SPI_ClearInterrupt() SFR_SET(SPSTAT, 7)

#define	SPI_ClearWriteConflictInterrupt() SFR_SET(SPSTAT, 6)

#define	SPI_ClearInterrupts() (SPSTAT \|= 0xC0)

#define	SPI_IgnoreSlaveSelect(__STATE__) SFR_ASSIGN(SPCTL, 7, __STATE__)

#define	SPI_SetEnabled(__STATE__) SFR_ASSIGN(SPCTL, 6, __STATE__)

#define	SPI_SetDataOrder(__ORDER__) SFR_ASSIGN(SPCTL, 5, __ORDER__)

#define	SPI_SetMasterMode(__STATE__) SFR_ASSIGN(SPCTL, 4, __STATE__)

#define	SPI_SetClockPolarity(__STATE__) SFR_ASSIGN(SPCTL, 3, __STATE__)

#define	SPI_SetClockPhase(__PHASE__) SFR_ASSIGN(SPCTL, 2, __PHASE__)

#define	SPI_SetClockPrescaler(__PRE_SCALER__) (SPCTL = SPCTL & ~0x03 \| ((__PRE_SCALER__) << 0))

#define	SPI_SetPort(__ALTER_PORT__) (P_SW1 = P_SW1 & ~(0x03 << 2) \| ((__ALTER_PORT__) << 2))

Enumerations
enum	SPI_AlterPort_t { SPI_AlterPort_P12P54_P13_P14_P15 = 0x00 , SPI_AlterPort_P22_P23_P24_P25 = 0x01 , SPI_AlterPort_P54_P40_P41_P43 = 0x02 , SPI_AlterPort_P35_P34_P33_P32 = 0x03 , SPI_AlterPort_8G1K08_8Pin = 0x00 }

enum	SPI_ClockPreScaler_t { SPI_ClockPreScaler_4 = 0x00 , SPI_ClockPreScaler_8 = 0x01 , SPI_ClockPreScaler_16 = 0x02 , SPI_ClockPreScaler_32or2 = 0x03 }

enum	SPI_ClockPhase_t { SPI_ClockPhase_LeadingEdge = 0x00 , SPI_ClockPhase_TrailingEdge = 0x01 }

enum	SPI_DataOrder_t { SPI_DataOrder_MSB = 0x00 , SPI_DataOrder_LSB = 0x01 }

Functions
uint8_t	SPI_TxRx (uint8_t dat)

void	SPI_TxRxBytes (uint8_t *pBuf, uint8_t len)

Macro Definition Documentation

◆ SPI_ClearInterrupt

#define SPI_ClearInterrupt ( ) SFR_SET(SPSTAT, 7)

Definition at line 64 of file fw_spi.h.

◆ SPI_ClearInterrupts

#define SPI_ClearInterrupts ( ) (SPSTAT |= 0xC0)

Definition at line 66 of file fw_spi.h.

◆ SPI_ClearWriteConflictInterrupt

#define SPI_ClearWriteConflictInterrupt ( ) SFR_SET(SPSTAT, 6)

Definition at line 65 of file fw_spi.h.

◆ SPI_IgnoreSlaveSelect

#define SPI_IgnoreSlaveSelect ( __STATE__ ) SFR_ASSIGN(SPCTL, 7, __STATE__)

Definition at line 68 of file fw_spi.h.

◆ SPI_RxTxFinished

#define SPI_RxTxFinished ( ) (SPSTAT & 0x80)

Definition at line 63 of file fw_spi.h.

◆ SPI_SetClockPhase

#define SPI_SetClockPhase ( __PHASE__ ) SFR_ASSIGN(SPCTL, 2, __PHASE__)

Clock Phase (CPHA) 0: bits are sampled on the leading clock edge 1: bits are sampled on the trailing clock edge

Definition at line 84 of file fw_spi.h.

◆ SPI_SetClockPolarity

#define SPI_SetClockPolarity ( __STATE__ ) SFR_ASSIGN(SPCTL, 3, __STATE__)

Clock Polarity, CPOL 0: clock line idles low 1: clock line idles high

Definition at line 78 of file fw_spi.h.

◆ SPI_SetClockPrescaler

#define SPI_SetClockPrescaler ( __PRE_SCALER__ ) (SPCTL = SPCTL & ~0x03 | ((__PRE_SCALER__) << 0))

SPI Clock

Definition at line 88 of file fw_spi.h.

◆ SPI_SetDataOrder

#define SPI_SetDataOrder ( __ORDER__ ) SFR_ASSIGN(SPCTL, 5, __ORDER__)

Definition at line 70 of file fw_spi.h.

◆ SPI_SetEnabled

#define SPI_SetEnabled ( __STATE__ ) SFR_ASSIGN(SPCTL, 6, __STATE__)

Definition at line 69 of file fw_spi.h.

◆ SPI_SetMasterMode

#define SPI_SetMasterMode ( __STATE__ ) SFR_ASSIGN(SPCTL, 4, __STATE__)

Definition at line 71 of file fw_spi.h.

◆ SPI_SetPort

#define SPI_SetPort ( __ALTER_PORT__ ) (P_SW1 = P_SW1 & ~(0x03 << 2) | ((__ALTER_PORT__) << 2))

Alternative ports

Definition at line 92 of file fw_spi.h.

Enumeration Type Documentation

◆ SPI_AlterPort_t

enum SPI_AlterPort_t

STC8H1K08(TSSOP20) STC8H3K32S2(TSSOP20) #1 #4 #1 #3 #4 SPI SS -> 1 16 19 7 16(P35) SPI MOSI -> 2 15 15(P34) SPI MISO -> 3 14 14(P33) SPI CLK -> 4 13 13(P32)

The ports for STC8G1K08-8Pin, STC8G1K08A are different: SS MO MI SCLK 00 - P5.5 P5.4 P3.3 P3.2, 01/10/11 - n/a

Enumerator
SPI_AlterPort_P12P54_P13_P14_P15
SPI_AlterPort_P22_P23_P24_P25
SPI_AlterPort_P54_P40_P41_P43
SPI_AlterPort_P35_P34_P33_P32
SPI_AlterPort_8G1K08_8Pin

Definition at line 33 of file fw_spi.h.

{
    //            SS MOSI MISO SCLK
    SPI_AlterPort_P12P54_P13_P14_P15    = 0x00,
    SPI_AlterPort_P22_P23_P24_P25       = 0x01,
    SPI_AlterPort_P54_P40_P41_P43       = 0x02,
    SPI_AlterPort_P35_P34_P33_P32       = 0x03,
    SPI_AlterPort_8G1K08_8Pin           = 0x00,
} SPI_AlterPort_t;

◆ SPI_ClockPhase_t

enum SPI_ClockPhase_t

Enumerator
SPI_ClockPhase_LeadingEdge
SPI_ClockPhase_TrailingEdge

Definition at line 51 of file fw_spi.h.

{
    SPI_ClockPhase_LeadingEdge  = 0x00, // Bits are sampled on the leading edge of SCLK
    SPI_ClockPhase_TrailingEdge = 0x01, // Bits are sampled on the trailing edge of SCLK
} SPI_ClockPhase_t;

◆ SPI_ClockPreScaler_t

enum SPI_ClockPreScaler_t

Enumerator
SPI_ClockPreScaler_4
SPI_ClockPreScaler_8
SPI_ClockPreScaler_16
SPI_ClockPreScaler_32or2

Definition at line 43 of file fw_spi.h.

{
    SPI_ClockPreScaler_4       = 0x00,
    SPI_ClockPreScaler_8       = 0x01,
    SPI_ClockPreScaler_16      = 0x02,
    SPI_ClockPreScaler_32or2   = 0x03,
} SPI_ClockPreScaler_t;

◆ SPI_DataOrder_t

enum SPI_DataOrder_t

Enumerator
SPI_DataOrder_MSB
SPI_DataOrder_LSB

Definition at line 57 of file fw_spi.h.

{
    SPI_DataOrder_MSB       = 0x00, // High bits first
    SPI_DataOrder_LSB       = 0x01, // Low bits first
} SPI_DataOrder_t;

Function Documentation

◆ SPI_TxRx()

uint8_t SPI_TxRx ( uint8_t dat )

Definition at line 20 of file fw_spi.c.

{
    SPDAT = dat;
    while (!SPI_RxTxFinished());
    SPI_ClearInterrupts();
    return SPDAT;
}

◆ SPI_TxRxBytes()

void SPI_TxRxBytes	(	uint8_t *	pBuf,
		uint8_t	len
	)

Definition at line 28 of file fw_spi.c.

{
    while(len--)
    {
        *pBuf++ = SPI_TxRx(*pBuf);
    }
}

Macros

Enumerations

Functions