int main()
{
Xint16 audio_data[128];
int i;
u8 *oled_equalizer_buf=(u8 *)malloc(128*sizeof(u8));
Xil_Out32(OLED_BASE_ADDR,0xff);
OLED_Init(); //oled init
IicConfig(XPAR_XIICPS_0_DEVICE_ID);
AudioPllConfig(); //enable core clock for ADAU1761
AudioConfigure();
xil_printf("ADAU1761 configured\n\r");
/*
* perform continuous read and writes from the codec that result in a loopback
* from Line in to Line out
*/
while(1)
{
get_audio(audio_data);
for(i=0;i<128;i++)
{
oled_equalizer_buf[i]=audio_data[i]>>18;
}
OLED_Clear();
OLED_Equalizer_128(oled_equalizer_buf);
}
return 0;
}
/* \brief LED and AUDIO initialization
*
*/
void system_init()
{
Xil_Out32(OLED_BASE_ADDR,0xff);
OLED_Init(); //OLED initialization
IicConfig(XPAR_XIICPS_0_DEVICE_ID);
AudioPllConfig(); //enable core clock for ADAU1761
AudioConfigure();
DMA_Congfig(DMA_DEV_ID);
//Disable cache on OCM
Xil_SetTlbAttributes(0x00000000,0x14de2);
}
int main()
{
//init_platform();
u32 i;
u32 ret[128];
Xint16 audio_data[128];
u8 *oled_equalizer_buf=(u8 *)malloc(128*sizeof(u8));//WARNING bro...: -Wimplicit-function-declaration
/* -------- LED and HW related -------- */
Xil_Out32(OLED_BASE_ADDR,0xff);
OLED_Init(); //oled init
IicConfig(XPAR_XIICPS_0_DEVICE_ID);
AudioPllConfig(); //enable core clock for ADAU1761
AudioConfigure();
xil_printf("ADAU1761 configured\n\r");
while(1) {
//DEBUG: xil_printf("*");
// capture audio data
get_audio(audio_data);
#if (MEASURE_TIME==1)
// Your total latency (FFT + Magnitude + Noise cancellation + Averaging + to & fro PS-PL communication) ...
// should be less than 103us.
init_timer(timer_ctrl, timer_counter_l, timer_counter_h);
start_timer(timer_ctrl);
#endif
for(i=0;i<128;i++)
{
Xil_Out32(XPAR_AXI4BURST_PS2PL_0_S_AXI_MEM0_BASEADDR, audio_data[i]);
//DEBUG: xil_printf("sent data %0x\n\r", audio_data[i]);
}
//TODO: find more elegant way, checking some "completed status" signal maybe...
usleep(10);// less than 10usec doesn't work
for(i=0;i<128;i++)
{
ret[i] = Xil_In32(XPAR_AXI4BURST_PS2PL_0_S_AXI_MEM0_BASEADDR);
//TODO: put these post-process in FPGA
oled_equalizer_buf[i] = (u8)(ret[i] >> 4);
//DEBUG: xil_printf("oled[%d]=%d\n\r", i, oled_equalizer_buf[i]);
if (oled_equalizer_buf[i] >= 40) {
oled_equalizer_buf[i] = 40;
}
}
#if (MEASURE_TIME==1)
stop_timer(timer_ctrl);
//Calculate the time for the operation
xil_printf("Communication time %d us\n\r", (*timer_counter_l) / 333);
#endif
OLED_Clear();
OLED_Equalizer_128(oled_equalizer_buf);
}
return 0;
}