AG903ライブラリリファレンス
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1: int32_t AG903_DMACMgrSetRemoteDescAddr(void *addr) 2: { 3: int32_t retval = AG903_ENONE; 4: uint32_t loop; 5: uint8_t enable; 6: 7: if(NULL == addr) 8: { 9: return -AG903_EINVAL; 10: } 11: if(NULL != rdd_data) 12: { 13: return -AG903_EPERM; 14: } 15: 16: for(loop=0; loop<AG903_DMAC_UNIT_NUM; loop++) 17: { 18: enable = DMACMgr_CheckEnable(loop); 19: if(true == enable) { 20: retval = -AG903_EBUSY; 21: break; 22: } 23: } 24: if(AG903_ENONE == retval) 25: { 26: rdd_data = (uint8_t*)addr; 27: } 28: 29: return retval; 30: }
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