gomaomao/DIY-Multiprotocol-TX-Module
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Spi cosmetics

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midelic 2016-09-02 22:47:44 +01:00 committed by GitHub
parent cdcaa70235
commit 12b3f3900f
1 changed files with 6 additions and 19 deletions
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23
Multiprotocol/SPI.ino
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@ -17,16 +17,11 @@ void initSPI2() {
SPI_2.setBitOrder(MSBFIRST); // Set the SPI_2 bit order
SPI_2.setDataMode(SPI_MODE0); //Set the SPI_2 data mode 0
SPI_2.setClockDivider(SPI_CLOCK_DIV8); //// Slow speed (36 / 8 = 4.5 MHz SPI_2 speed)
SPI_2.setClockDivider(SPI_CLOCK_DIV8); //// speed (36 / 8 = 4.5 MHz SPI_2 speed)
}
#endif
#ifdef XMEGA
#define XNOP() NOP()
#else
#define XNOP()
#endif
#if defined STM32_board
@ -87,10 +82,9 @@ void spi_write(uint8_t command)
{
uint8_t n=8;
SCK_off;//SCK start low
XNOP() ;
SDI_off;
XNOP() ;
while(n--) {
do
{
if(command&0x80)
SDI_on;
else
@ -102,8 +96,8 @@ void spi_write(uint8_t command)
XNOP() ;
SCK_off;
command = command << 1;
XNOP() ;
}
while(n--);
SDI_on;
}
@ -128,22 +122,15 @@ uint8_t spi_Read(void) {
uint8_t spi_read()
{
uint8_t result;
uint8_t i;
result=0;
uint8_t result=0,i;
for(i=0;i<8;i++)
{
result<<=1;
if(SDO_1) ///
result|=0x01;
SCK_on;
XNOP() ;
XNOP() ;
NOP();
SCK_off;
XNOP() ;
XNOP() ;
NOP();
}
return result;
}