Diff: 3_zadatak_master.cpp

Revision:

0:59048845a5c6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/3_zadatak_master.cpp	Tue Nov 29 21:33:57 2016 +0000
@@ -0,0 +1,24 @@
+#include "mbed.h"
+
+//master program
+
+SPI spi_port(p5, p6, p7);   // mosi, miso, sclk
+DigitalOut ss(p8);   //slave select pin
+Serial pc(USBTX, USBRX); // tx, rx
+
+int main() {
+
+    int podatak;
+    spi_port.format(8,1);   // 8 bitni okvir, mod rada 0
+    spi_port.frequency(1000000);   // frekvencija takta 1MHz
+
+    while (1){
+        ss = 0;   //spusti SS pin u nulu, aktivan je u nuli (oznaci slave)
+        wait_us(1); //cekaj da slave pripremi podatak
+        podatak = spi_port.write(0);   //posalji dummy byte == 0 i ocitaj temperaturu
+        ss = 1; //vrati SS pin u jedinicu (odznaci slave)
+
+        pc.printf("Podatak: %d\n",podatak);
+        wait(1);
+    }
+}
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