AG903ライブラリリファレンス
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1: int32_t AG903_SSPMgrEnableDmaMode(AG903_SSPMgrHandle* handle, uint8_t mode) 2: { 3: int32_t retval = AG903_ENONE; 4: _Bool idle; 5: uint8_t ch; 6: 7: retval = SSPMgr_CheckHandle(handle, &ch); 8: if(AG903_ENONE != retval) { 9: return -AG903_EINVAL; 10: } 11: if(0 != SspChStat[ch].pio) { 12: return -AG903_EPERM; 13: } 14: 15: idle = SSPMgr_CheckIdle(ch); 16: if(true != idle) { 17: return -AG903_EBUSY; 18: } 19: 20: SspChStat[ch].dma = mode; 21: 22: return retval; 23: }
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