Diff: main.cpp

Revision:

0:e35b82bee4e2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Dec 11 07:19:10 2020 +0000
@@ -0,0 +1,36 @@
+#include "mbed.h"
+
+/*
+   This basic example just shows how to read the ADC internal channels raw values.
+   Please look in the corresponding device reference manual for a complete
+   description of how to make a temperature sensor, VBat or Vref measurement.
+*/
+DigitalIn     mode(PC_13);
+DigitalOut    nRF_csn(D10 /*PB_6*/ );
+DigitalOut    nRF_ce(D9);
+DigitalIn     IRQ(D8);
+//SPI           nRF_spi(D4, D5, D3);// mosi, miso, sck,
+SPI           nRF_spi(PA_7, PA_6, PA_5);// mosi, miso, sck
+
+int main()
+{
+    printf("SPI TEST\r\n");
+    nRF_csn=1;//chip select disable
+    nRF_spi.frequency(4000000);     // 1MHz SPI bus
+    nRF_spi.format(8,0);  // 8bit normal porarity phase
+    wait(1.0);
+    int i;
+    int reg;
+    i=0;
+    
+    while(1) {
+      nRF_csn=0;//chip select enable
+      nRF_spi.write(i);//register read command  I=register number
+      reg = nRF_spi.write(i);//read reg value
+      nRF_csn=1; //chip select disable
+      printf("%d %02x \r\n",i,reg);
+      i++;     
+      if (i>=32) i=0;
+      wait(0.1f);   
+    }
+}