Yanni Coroneos
/
mbed_aks_configurator
master fsm
Diff: main.cpp
- Revision:
- 0:f44331af9d8b
diff -r 000000000000 -r f44331af9d8b main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Nov 25 07:34:40 2015 +0000 @@ -0,0 +1,111 @@ +#include "mbed.h" +SPI spi(p5, p6, p7); // mosi, miso, sclk +DigitalOut ak4117cs(p8); +DigitalOut ak4117pdn(p9); +DigitalOut ak4396cs(p10); +DigitalOut ak4396pdn(p11); +DigitalOut myled(LED1); + +uint16_t CONTROL0_CLOCK_SOURCE = 0b0010000000001111; // select PLL as master clock source +uint16_t CONTROL1_CLOCK_FREQ = 0b0010000100000000; // select master clk for PLL mode, fs = 48kHz +uint16_t CONTROL2_FORMAT_SETTING = 0b0010001000001101; // select I2S as comm format and channel 1 for fs +uint16_t CONTROL3_INT_0 = 0b0010001101111111; // enable all the interrupts on INT0 + + +uint16_t CONTROL2_DEFAULT_NORMALSPEED = 0b0010000110000010; +uint16_t CONTROL1_MODE3_RSTN_AUTO_SETTING = 0b0010000010001110; +uint16_t CONTROL1_MODE3_AUTO_SETTING = 0b0010000010001111; +uint16_t CONTROL3_DEFAULT = 0b0010001000000000; +uint16_t LCH_FULL_VOLUME = 0b0010001111111111; +uint16_t RCH_FULL_VOLUME = 0b0010010011111111; + +//data order is C1,C0,R/W,A4,A3,A2,A1,A0,D7,D6.D5,D4,D3,D2,D1,D0 +uint16_t CONTROL0_AK4396 = 0b0010000010000111; +uint16_t CONTROL1_AK4396 = 0b0010000110000010; + + +void ak4117_config(); +void ak4396_config(); + +int main() +{ + // Setup the spi for 16 bit data, high steady state clock, + // second edge capture, with a 9600 clock rate + spi.format(16,3); + spi.frequency(9600); + ak4396cs = 1; + ak4117cs=1; + + ak4117_config(); + wait(0.2); + ak4396_config(); + while(1) { + myled = 1; + wait(0.2); + myled = 0; + wait(0.2); + } +} + +void ak4396_config() +{ + // Chip must be deselected + ak4396cs = 1; + ak4396pdn=0; //power down + wait_ms(1); + ak4396pdn=1; + wait_ms(1); + + + //while (1) + // { + // Select the device by seting chip select low + ak4396cs = 0; + // turn on zero_detect + spi.write(CONTROL0_AK4396); + // Deselect the device + ak4396cs = 1; + wait_ms(1); + + ak4396cs=0; + spi.write(CONTROL1_AK4396); + ak4396cs=1; + wait_ms(1); + return; +} + +void ak4117_config() +{ + // Chip must be deselected + ak4117cs = 1; + ak4117pdn=0; //power down + wait_ms(1); + ak4117pdn=1; + wait_ms(1); + + //while (1) + // { + // Select the device by seting chip select low + ak4117cs = 0; + // turn on zero_detect + spi.write(CONTROL0_CLOCK_SOURCE); + // Deselect the device + ak4117cs = 1; + wait_ms(1); + + ak4117cs=0; + spi.write(CONTROL1_CLOCK_FREQ); + ak4117cs=1; + wait_ms(1); + + ak4117cs=0; + spi.write(CONTROL2_FORMAT_SETTING); + ak4117cs=1; + wait_ms(1); + + ak4117cs=0; + spi.write(CONTROL3_INT_0); + ak4117cs=1; + wait_ms(1); + return; +} \ No newline at end of file