AG903ライブラリリファレンス
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1: int32_t AG903_I2CMgrSlaveRead(AG903_I2CMgrHandle* handle, uint8_t* buf, uint32_t size) 2: { 3: AG903_I2CMgrQue que; 4: int32_t retval = AG903_ENONE; 5: int32_t result; 6: uint32_t hdlnum; 7: uint8_t ch; 8: 9: result = I2CMgr_CheckHandle(handle, &ch, &hdlnum); 10: if(AG903_ENONE != result) { 11: return -AG903_EINVAL; 12: } 13: if((NULL == buf) || (0 == size)) { 14: return -AG903_EINVAL; 15: } 16: 17: que.proc = AG903_I2C_PROC_SLAVE_READ; 18: que.hdlnum = hdlnum; 19: que.arg.wr.buf = buf; 20: que.arg.wr.size = size; 21: que.arg.wr.addr = 0; 22: retval = I2CMgr_SetQue(ch, &que); 23: if(AG903_ENONE == retval) { 24: I2cHandleStat[ch][hdlnum].stat = AG903_I2C_HANDLE_QUEUING; 25: I2CMgr_MainProcess(ch); 26: } 27: 28: return retval; 29: }
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