I am reading audio files from SD card in k60 and putting it to the DAC out . From there i gave it to the G510 GSM audio pins and i hear the audio while making a call to the G510. It is successfully working .But now I need to make the same code using FRDM K64. and the code is not working . I think the issue is with FTM which generate signal to trigger DMA request.
This is my FTM code . It is working for K60. what changes should I make so that it works with FRDM K64.
bus clock is 50mhz for k60 and 60 mhz for frdm k64
SIM_SCGC3 |= SIM_SCGC3_FTM2_MASK; // enable clock to FTM2
SIM_SCGC5 |= SIM_SCGC5_PORTB_MASK; // enable clock to PORTB
FTM2_C1SC |= FTM_CnSC_MSB_MASK | FTM_CnSC_ELSB_MASK | FTM_CnSC_CHIE_MASK | FTM_CnSC_DMA_MASK ; // PWM, true high pulses - generates DMA req
FTM2_MOD = (uint_32)((uint_32)BSP_BUS_CLOCK/(SAMPLERATE)); // 50MHz / 16000 = 3125.
FTM2_C0V = 1100; // any initial random value
FTM2_C1V = 50; // this value does NOT change -it is used to generate audio reload DMA request
// this starts the timer
FTM2_SC |= FTM_SC_CLKS(0x01) | FTM_SC_PS(0x00) ; // Bus Clock, divide-by-1
Thanks and Regards,