Revision 0:eae01b881372, committed 2017-01-25

Comitter:

gjones20

Date:

Wed Jan 25 05:17:49 2017 +0000

Commit message:

Working mbed code for the Adafruit 1958 radio transmitter. Does not include RDS support.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_Si4713.lib	Wed Jan 25 05:17:49 2017 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/users/JLarkin/code/Adafruit_Si4713/#6643c5542090

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD.lib	Wed Jan 25 05:17:49 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/simon/code/TextLCD/#308d188a2d3a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Jan 25 05:17:49 2017 +0000
@@ -0,0 +1,81 @@
+#include "mbed.h"
+#include "TextLCD.h"
+#include "Adafruit_Si4713.h"
+
+TextLCD lcd(p19,p20,p21,p22,p23,p24);
+AnalogIn Ain(p18);
+
+InterruptIn decrease(p6);
+InterruptIn increase(p7);
+Timer debounce;
+
+uint16_t fmstation=10740;
+
+I2C myi2c(p9,p10);
+Adafruit_Si4713 radio = Adafruit_Si4713(myi2c, p5, 0x63<<1);
+
+void StationDown();
+void StationUp();
+
+void StationDown() {
+if (debounce.read_ms()>200 && fmstation >= 8800) {
+fmstation=fmstation-10;
+radio.tuneFM(fmstation);
+debounce.reset();
+    }
+}
+
+void StationUp() {
+if (debounce.read_ms()>200 && fmstation <= 10800) {
+fmstation=fmstation+10;
+radio.tuneFM(fmstation);
+debounce.reset();
+    }
+}
+
+int main() {
+
+    printf("Adafruit Radio - Si4713 Test\r\n");
+    
+    if (! radio.begin()) {
+        printf("Couldn't find radio?\r\n");
+        while (1);
+    }
+    
+    /*
+    // Uncomment to scan power of entire range from 87.5 to 108.0 MHz
+    for (uint16_t f  = 8750; f<10800; f+=10) {
+        radio.readTuneMeasure(f);
+        printf("Measuring %.1f\t",f/100.0);
+        radio.readTuneStatus();
+        printf("%i\r\n",radio.currNoiseLevel);
+    }
+    */
+    
+    printf("\n\rSet TX power");
+    radio.setTXpower(115);  // dBuV, 88-115 max
+    
+        
+    printf("\n\rTuning into %.1f\r\n",fmstation/100.0); 
+    radio.tuneFM(fmstation);
+    
+    // This will tell you the status in case you want to read it from the chip
+    radio.readTuneStatus();
+    printf("\tCurr freq: %d\r\n", radio.currFreq); 
+    printf("\tCurr freqdBuV: %d\r\n", radio.currdBuV); 
+    printf("\tCurr ANTcap: %d\r\n", radio.currAntCap);
+    
+    debounce.start();
+    decrease.rise(&StationDown);
+    increase.rise(&StationUp);
+            
+    while(1) {
+        lcd.cls();
+        lcd.printf("FM STATION\n");
+        lcd.printf("%1.1f MHz",fmstation/100.0);
+        wait(0.25);
+    }
+    //printf("\n\rTuning into %.1f\r\n",fmstation/100.0);  
+    
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Wed Jan 25 05:17:49 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/ad3be0349dc5
\ No newline at end of file