Diff: KT0915.h

Revision:

0:e5bccd46b6db

Child:

1:bf3cbe137051

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/KT0915.h	Tue Jan 09 11:44:11 2018 +0000
@@ -0,0 +1,103 @@
+#ifndef __KT0915_H
+#define __KT0915_H
+
+#include "mbed.h"
+
+#define KT0915_address 0x6A
+
+/** Library for KT0915
+*/
+class KT0915
+{
+public:
+    /** Create a KT0915 instance connected to specified I2C pins
+        *
+        * @param sda I2C-bus SDA pin
+        * @param scl I2C-bus SCL pin
+        */
+    KT0915(PinName sda,PinName scl);
+    /**Initize KT0915
+    *
+    *Set paramaters below
+    *
+    *0x02:0b0000000000000111 FM space:100KHz, R/L mute:disable
+    *
+    *0x04:0b1110000010010000 FM/AM/device mute:disable, bass:disable DAC cap:60uF
+    *
+    *0x05:0b1001100000100000 Mono:enable, de-emphasis:50uF, blend:disable
+    *
+    *0x0A:0b0000010000000000 LDO:highest, FM AFC:enable
+    *
+    *0x0C:0b0000000000101100 FM wide freq:enable
+    *
+    *0x0F:0b1000100000000000 Stanby:disable, volume:0
+    *
+    *0x22:0b1010001011101100 AM AGC fast win:fastest, AM AGC short win:slowest
+    *
+    *AM bandwidth:6KHz, AM gain:12dB, Left Inverse Control:enable
+    *
+    *0x23:0b0001110000000000 low th:B
+    *
+    *0x2E:0b0010100010001100 softmute:fast, AM softmute start level:0b100
+    *
+    *softmute target volume:0b0100, softmute mode:RSSI, FM softmute start threshold:0b100
+    *
+    *0x33:0b0101010000000001 AM space:9KHz
+    *
+    *0x3F:0b0000000000010011 RF AGC patch
+    */
+
+    void init(void);
+
+    /**read KT0915_WHO_AM_I
+    *
+    *return 0x4B54
+    */
+    int getID(void);
+
+    /**set volume
+    *
+    *vol...0~31
+    */
+    void set_vol(int vol);
+
+    /**set frequency and tune
+    *
+    *AM...mode=1, freq=frequency (KHz)
+    *
+    *FM...mode=0, freq=100*frequency (MHz)
+    */
+    void set_freq(bool mode,int freq);
+
+    /**read RSSI (dB)
+    *
+    *AM...mode=0
+    *
+    *FM...mode=1
+    */
+    int get_rssi(bool mode);
+
+    /**read SNR (dB)
+    *
+    *for FM only
+    */
+    int get_snr(bool mode);
+
+    /**read Chip Ready Indicator
+    *
+    *0...Chip is not ready.
+    *
+    *1...Chip is ready.
+    */
+    bool get_ready(void);
+
+    /**re-cali*/
+    void cali(void);
+
+private:
+    I2C _KT0915;
+    void write_reg(int memory_address,int data1,int data2);
+    void read_reg(int memory_address,int *data1,int *data2);
+};
+
+#endif