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I am using audio core to generate digital audio filters . I want to pass digital signal from ADC to DAC , but it can't operate . Who can help me this problem . Thank you very much !!!
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here is my code by C
while(1) { //wait for interrupt signal ctrl_reg = IORD_ALT_UP_AUDIO_CONTROL(ALT_UP_AUDIO_BASE); ctrl_reg &= ALT_UP_AUDIO_CONTROL_RI_MSK; if(ctrl_reg == 0) continue; //if there isn't read interrupt signal , continue wait ctrl_reg = IORD_ALT_UP_AUDIO_CONTROL(ALT_UP_AUDIO_BASE); //clear interrupt flag ctrl_reg &= ~ALT_UP_AUDIO_CONTROL_RI_MSK; IOWR_ALT_UP_AUDIO_CONTROL(ALT_UP_AUDIO_BASE, ctrl_reg); //read left channel alt_up_audio_read_left_channel(&left_reg,read_length); //read right channel alt_up_audio_read_right_channel(&right_reg,read_length); // write left channel alt_up_audio_write_left_channel(&left_reg,write_length); // write right channel alt_up_audio_write_right_channel(&right_reg,write_length); }- Mark as New
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Try this example, let me know if it works.
# include "alt_up_audio.h" // assumes input only from right channel int main() { unsigned sample_count; long audiobuf[128]; alt_up_audio_reset_audio_core(); //get the audio started while (1) { sample_count = alt_up_audio_read_right_channel(audiobuf,128); if(sample_count) { //must write both output channels alt_up_audio_write_left_channel(audiobuf,sample_count); alt_up_audio_write_right_channel(audiobuf,sample_count); } } }- Mark as New
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Hello, i am having the same problem , so is there any workaround for this?
Thanks!
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