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t Troupe was created by nine young musicians, who toured remote villages on horses and performed traditional Mongolian music and dances for nomadic families. The 54yearold was born in Tongliao, in eastern Inner Mongolia and joined the troupe in says there are 74 branch troupes across Inner Mongolia and actors give around 100 shows every year to local nomadic people. I can still recall the days when I toured with the troupe in the early 39。 判斷這兩個變量的最高位,為 1則輸出為高,為 0則輸出為低。無線傳輸模塊接收到發(fā)射模塊傳來的移動信息后由 I/O口傳遞到 HT82M98A, HT82M98A 再將數(shù)據(jù)傳送到電腦的 USB 口。 ADXL345可以通過 SPI 總線或 I2C 總線與單片機(jī)連接,本產(chǎn)品選擇的單片機(jī) STC15F2K60S2 I2C 接口, 但是可以采用 I/O 口模擬 I2C總線或 SPI 總線接口的方法連接。接收程序中一次循環(huán)所需的時間大約為 。 微加速度計(jì) 選擇 方案一:采用 Freescale公司生產(chǎn)的 MMA7455L數(shù)字輸出 ( IIC/SPI) 微電容調(diào)節(jié)式加速度感應(yīng)芯片 [ 1] 。 ( 1) ADXL345 可以通過 SPI 總線或 I2C總線與單片機(jī)連接,我們采用單片機(jī)模塊 STC15L2K60S2的I/O口模擬 I2C 總線接口的方法將 ADXL345與單片機(jī)模塊連接起來, SDA連接 單片機(jī) ,SCL連接 單片機(jī)的 。 dis_data=(BUF[3]8)+BUF[2]。 發(fā)射電路先采用 ADXL345加速度傳感器檢測鼠標(biāo)的移動信息,然后輸出到單片機(jī) I/O口, 經(jīng)無線模塊將此信息發(fā)射到接收電路。s Poly Theater. Their show, titled Ulan Muqir on the Grassland, depicted the history and development of the art troupe. Being from the region allowed me to embrace the culture of Inner Mongolia and being a member of the troupe showed me where I belonged, Nasun, the art troupe39。ve been here I have been tasked with nothing more challenging than learning my students39。t have a formal stage. The audience just sat on the grass. Usually, the performances became a big party with local people joining in. For him, the rewarding part about touring isn39。 nRF24L01 無線 模塊程序設(shè)計(jì) 進(jìn)行數(shù)據(jù)傳輸時,發(fā)送方將按照無線通信協(xié)議封裝后的數(shù)據(jù)存入發(fā)送數(shù)據(jù)緩沖隊(duì)列,啟動發(fā)送,發(fā)送完成后,發(fā)送方自動轉(zhuǎn)入接收模式,準(zhǔn)備接收應(yīng)答信號。 Z Z2 表示鼠標(biāo)中間滾輪轉(zhuǎn)動的信號數(shù)據(jù); M、 R、 L表示鼠標(biāo)的左、中、右鍵按下時的數(shù)據(jù); OSC1 、 OSC2 外接 6 MHz 晶振; RESET 表示復(fù)位輸入端, 啟動時硬件自動復(fù)位。 nRF24L01無線射頻模塊是一款新型單片射頻收發(fā)器件 , 工作于 GHzISM 頻段,最高工作速率達(dá) 2 Mbps,信號空中傳輸時間很短,極大降低了無線傳輸中的碰撞現(xiàn)象和電流消耗,該芯片融合了增強(qiáng)型ShockBurst 技術(shù), 能自動處理字頭和 CRC 效驗(yàn)碼,使用方便。 圖 13主機(jī)端信號 接收系統(tǒng) 程序 流程 圖 3 方案比較 控制器的 選擇 方案一:采用 、自由度大,功耗低、體積小、技術(shù)成熟等優(yōu)點(diǎn),得到了廣泛應(yīng)用 . 但是 51單片內(nèi)部資源有限,給系統(tǒng)設(shè)計(jì)過程帶來不便。且影響系統(tǒng)控制等各個環(huán)節(jié),不便于實(shí)時調(diào)控。該芯片功耗低 ,在以 6 dBm 的功率發(fā)射時,工作電流只有 9 mA。 軟件的設(shè)計(jì) ADXL345 微加速度計(jì)模塊程序 設(shè)計(jì) 微加速度計(jì) ADXL345 與微處理器之間通過 I2C 總線連接, 它們之間的數(shù)據(jù)傳輸需要遵循 I2C 總線協(xié)議, 寄存器 0x32 至寄存器 0x37 分別保存 x、 y、 z 軸輸出數(shù)據(jù),輸出數(shù)據(jù)為二進(jìn)制補(bǔ)碼, DATAx0 為最低有效字節(jié), DATAx1 為最高有效字節(jié),其中 x 代表 X、 Y 或 Z。若在設(shè)定的等待時間內(nèi),接收到應(yīng)答信號則視為發(fā)送成功,則發(fā)送方自動清空發(fā)送數(shù)據(jù)緩沖隊(duì)列,進(jìn)入下一次發(fā)送過程或轉(zhuǎn)入待機(jī)模式;若在設(shè)定的等待時間內(nèi),沒有接收到應(yīng)答信號,則視為發(fā)送失敗,發(fā)送方將自動重發(fā)數(shù)據(jù),當(dāng)自動重發(fā)次數(shù)超過設(shè)定值時,產(chǎn)生中斷。t just about sharing art with nomadic families but also about gaining inspiration for the music and dance. Ulan Muqir literally translates as red burgeon, and today39。 names and figuring out what to do with them for the brief time each week that I stand in front of them. I do not consider the challenges of learning to live here part of a purposeful life. I consider those issues existential in nature. One of the problems with my life in America was that I felt it had no purpose. I went to work every day and even did what I could to mak e my colleagues39。s villages and entertain nomadic families, but their fame has spread around the world. On May 16 and 17, nearly 100 singers and dancers from the troupe performed at Beijing39。 三 、 系統(tǒng) 調(diào)試 本 設(shè)計(jì)的硬件 電路由發(fā)射和接收電路組成,其中接收電路安裝在電腦附近,由電腦 USB接口提供 5V電源。我們利用接口函數(shù) Multiple_read_ADXL345() 多字節(jié)連續(xù)讀取寄存器的數(shù)據(jù), 然后將高字節(jié)左移 8 位和低字節(jié) 8位相或的方法對數(shù)據(jù)重建 , 且對我們來說, 只需 X 和 Z 方向的加速度數(shù)據(jù)即可,程序如下: float temp。 4 二、單元模塊設(shè)計(jì) 電路的設(shè)計(jì) 遠(yuǎn)端控制子系統(tǒng)硬件電路設(shè)計(jì) 遠(yuǎn)端控制 子系統(tǒng)硬件部分主要由 主控 電路、 微加速度計(jì)模塊電路 和無線 射頻模塊電路 和 按鍵 部分電路等組成。 綜合以上二種方案,選擇方案二。 必須確保在下一個數(shù)據(jù)包傳來之前,完成全部算法及相應(yīng)處理工作。 綜合以上二種方案, 方案二功耗更低,更容易 實(shí)現(xiàn) ,故選 之 。 HT82M98A 的端口USBD+/CLK 連接 USB 數(shù)據(jù)正端; USBD/DATA連接 USB 數(shù)據(jù)負(fù)端。判斷 1次代表移動一個像素,然后 X 的值減 1; Shifxa和 Shifxb向左移一位,用于檢測下一個狀態(tài)值, Shifxa加 1代表向左移了 1位,為 8意味著Shifxa向左移了 8位。80s. We sat on the back of pickup trucks for hours. The sky was blue, and we couldn39。s essay affects me very deeply. Not as an urging to bee self reliant – I39。s Liaoning province, decades ago. The solider gave the old man a handmade saddle when they bid farewell. The story inspired Nasun to write Carved Saddle, a song that later became one of hi