mi mi
/
DirectSPI-test
DirectSPI test program
main.cpp
- Committer:
- mimi3
- Date:
- 2017-02-24
- Revision:
- 4:8173ee6ae31b
- Parent:
- 3:b573ad5a8eb7
File content as of revision 4:8173ee6ae31b:
#include "mbed.h" #include "DirectSPI.h" /* SPI1 */ #define MOSI SPI_MOSI /* D11 PA_7 */ #define MISO SPI_MISO /* D12 PA_6 */ #define SCLK SPI_SCK /* D13 PA_5 */ #define CS SPI_CS /* D10 PB_6 */ DirectSPI spi(MOSI, MISO, SCLK); // mosi, miso, sclk DigitalOut cs(CS); /* auto width transfer test */ void test_auto() { spi.format(8,3); while(1){ cs = 1; spi.directWrite(0xaa); spi.directWrite(0xaa); cs = 0; } } /* 8bit width transfer test */ void test_bit8() { spi.format(8,3); while(1){ cs = 1; spi.directWrite8(0xaa); spi.directWrite8(0xaa); cs = 0; } } /* 16bit width transfer test */ void test_bit16() { spi.format(16,3); while(1){ cs = 1; spi.directWrite16(0x5503); spi.directWrite16(0x5503); cs = 0; } } /* 8bit width transfer test using standard library*/ void test_std8() { spi.format(8,3); while(1){ cs = 1; spi.write(0xaa); spi.write(0xaa); cs = 0; } } int main(){ spi.frequency(24 * 1000000); /* Select the one of the test function */ //test_auto(); test_bit8(); //test_bit16(); //test_std8(); }