| | |
| | | // tyncpoll_time = (tagslotpos--%max_slotpos)*slottime; |
| | | } |
| | | } |
| | | extern u32 synctimer; |
| | | u32 target_time=100; |
| | | u8 pd_i; |
| | | u32 temptime,delaytime; |
| | | u16 delaycount; |
| | | extern u16 slotpos_intoatl, slotpos; |
| | | void NextPollDelay(u32 anchor_time) |
| | | { |
| | | |
| | | for(pd_i=0;pd_i<=tag_frequency;pd_i++) |
| | | { |
| | | slotpos_intoatl = pd_i*bigslot_num+tagslotpos; |
| | | temptime = (slotpos_intoatl*SLOTTIME_MS+100)*100; |
| | | if(anchor_time<temptime-10000) |
| | | { |
| | | delaytime = temptime-anchor_time; |
| | | |
| | | return ; |
| | | } |
| | | } |
| | | temptime = (tagslotpos*SLOTTIME_MS+100+10000)*100; |
| | | delaytime = temptime-anchor_time; |
| | | return ; |
| | | } |
| | | u16 lpcount; |
| | | void SetLPTimer(u32 anchor_time) |
| | | { |
| | | NextPollDelay(anchor_time); |
| | | current_count=HAL_LPTIM_ReadCounter(&hlptim1); |
| | | lpcount = current_count+delaytime/LPTIMER_LSB; |
| | | __HAL_LPTIM_COMPARE_SET(&hlptim1, lpcount); |
| | | } |
| | | void NearPoll(void) |
| | | { |
| | | |
| | |
| | | {flag_getresponse=1;} |
| | | lastsync_timer=sync_timer; |
| | | offsettimeus=ancsync_time-current_count*LPTIMER_LSB+offset; |
| | | SetNextPollTime(tagslotpos); |
| | | SetLPTimer(ancsync_time); |
| | | if(result==0) |
| | | {while (!(dwt_read32bitreg(SYS_STATUS_ID) & SYS_STATUS_TXFRS))//不断查询芯片状态直到发送完成 |
| | | { };} |