gomaomao/DIY-Multiprotocol-TX-Module
1
0
Fork 0
mirror of https://github.com/pascallanger/DIY-Multiprotocol-TX-Module.git synced 2025-07-04 04:27:53 +00:00
Code Issues Projects Releases Wiki Activity

Spi cosmetics

Browse Source
This commit is contained in:
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
Multiprotocol/SPI.ino
View File

@ -17,16 +17,11 @@ void initSPI2() {
SPI_2.setBitOrder(MSBFIRST); // Set the SPI_2 bit order SPI_2.setBitOrder(MSBFIRST); // Set the SPI_2 bit order
SPI_2.setDataMode(SPI_MODE0); //Set the SPI_2 data mode 0 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 #endif
#ifdef XMEGA
#define XNOP() NOP()
#else
#define XNOP()
#endif
#if defined STM32_board #if defined STM32_board
@ -87,10 +82,9 @@ void spi_write(uint8_t command)
{ {
uint8_t n=8; uint8_t n=8;
SCK_off;//SCK start low SCK_off;//SCK start low
XNOP() ;
SDI_off; SDI_off;
XNOP() ; do
while(n--) { {
if(command&0x80) if(command&0x80)
SDI_on; SDI_on;
else else
@ -102,8 +96,8 @@ void spi_write(uint8_t command)
XNOP() ; XNOP() ;
SCK_off; SCK_off;
command = command << 1; command = command << 1;
XNOP() ;
} }
while(n--);
SDI_on; SDI_on;
} }
@ -128,23 +122,16 @@ uint8_t spi_Read(void) {
uint8_t spi_read() uint8_t spi_read()
{ {
uint8_t result; uint8_t result=0,i;
uint8_t i;
result=0;
for(i=0;i<8;i++) for(i=0;i<8;i++)
{ {
result<<=1; result<<=1;
if(SDO_1) /// if(SDO_1) ///
result|=0x01; result|=0x01;
SCK_on; SCK_on;
XNOP() ;
XNOP() ;
NOP(); NOP();
SCK_off; SCK_off;
XNOP() ;
XNOP() ;
NOP();
} }
return result; return result;
} }
#endif #endif