34 lines
879 B
Plaintext
34 lines
879 B
Plaintext
DSP startup sequence:
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DspBoot called with (JASystem::TAudioThread::syncDSP()) as a parameter.
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DSP lib initialized
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A Dsp task is created:
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init callback = DspHandShake()
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req callback = JASystem::TAudioThread::syncDSP()
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Task is pushed as first task and executed
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DSP send DSP_INIT command (0xDCD10003)
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__DSPHandler receive the command
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task's init callback (DspHandShake) is called
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1 mail is read from dsp (and discarded)
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DSP flag is set as running
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AIRegisterDMACallback(JASystem::TAudioThread::syncAudio((void))
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AIStartDMA() to initialize dma in AI module
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-----------------------------------
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DSP run sequence:
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__DSPHandler receive command DSP_RESUME
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callback JASystem::TAudioThread::syncDSP called and pull 1 mail
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A message is send by OSSendMessage(1)
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JASystem::TAudioThread::audioproc receive OSMessage:
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0=update dac
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1=update dsp
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2=nop ?
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3=exit thread
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dsp is updated |