两个CC3200模块之间对传数据

我想做两个CC3200模块之间对传音频数据，不经过路由器，模块和模块之间能够直接通过wifi连接，这样一般用什么方式做比较好？有人做过吗？麻烦指点下   谢谢   QQ：709733624   微信：li709733624   麻烦有知道的大哥联系我下，谢谢

Terry Han：

TI有一个连接路由器的CC3200到CC3200的音频传输例程(wifi_audio_app)，你可以将这个例程修改为CC3200不经过路由器直接进行直连的方式

我做了一些笔记参考如下，

//By default example come up in loopback mode means it will read data on MIC and playback to speaker.//Verify whether device coming up with loopback mode or not for further debugging. For loopback test use only one LP at a time.//发射板的 SW3 键//接收板的 SW2 键

//Now follow below sequence once both the LP acquired the IP://1. Ensure Line-IN and Line-OUT points are connected appropriately on both the launch pads.//2. Upon successful connection to AP, press SW2 on LP1. Red LED will switch off on LP1.//3. Once LP1 connects to LP2, the red LED on LP2 will switch off.//4. Now press SW2 on LP2 and SW3 on LP1. Red LED will switch on LP2. 

//The demo in the SDK does support simultaneous bi-directional (full duplex) audio. This is achieved by exercising the //two parallel paths (as described below) for the audio-in and audio-out paths.////Audio-in jack -> 3200 McASP Data pin 1 -> I2S serializer 1 -> Audio Tx Task -> Audio transmit socket — Over the air// |// V//Audio-out jack <- 3200 McASP Data pin 0 <- I2S serializer 0 <- Audio Rx Task <- Audio receive socket — Over the air////Each of the paths are simplex individually but together it achieves the full duplex audio transfer.//————————run in 44.1kHz or 48kHz instead of 16kHz (default)——————–//You need to make following changes for 44.1/48 KHz 16-bit stereo PCM:////1. Add below code lines in AudioCodecConfig() after “if(bitClk == 512000)”////else if(bitClk == 1536000 || bitClk == 1411200)//{//AudioCodecPageSelect(TI3254_PAGE_0);////AudioCodecRegWrite(TI3254_CLK_MUX_REG, 0x03); // PLL Clock is CODEC_CLKIN//AudioCodecRegWrite(TI3254_CLK_PLL_P_R_REG, 0x91); // PLL is powered up, P=1, R=1//AudioCodecRegWrite(TI3254_CLK_PLL_J_REG, 0x38); // J=56//AudioCodecRegWrite(TI3254_CLK_PLL_D_MSB_REG, 0x00); // D = 0////AudioCodecRegWrite(TI3254_CLK_NDAC_REG, 0x82); // NDAC divider powered up, NDAC = 2//AudioCodecRegWrite(TI3254_CLK_MDAC_REG, 0x87); // MDAC divider powered up, MDAC = 7//AudioCodecRegWrite(TI3254_DAC_OSR_MSB_REG, 0x00); // DOSR = 0x0080 =//AudioCodecRegWrite(TI3254_DAC_OSR_LSB_REG, 0x80); // DOSR = 0x0080 = 128////AudioCodecRegWrite(TI3254_CLK_NADC_REG, 0x82); // NADC divider powered up, NADC = 2//AudioCodecRegWrite(TI3254_CLK_MADC_REG, 0x87); // MADC divider powered up, MADC = 7//AudioCodecRegWrite(TI3254_ADC_OSR_REG, 0x80); // AOSR = 128 ((Use with PRB_R1 to PRB_R6, ADC Filter Type A)//}////2. In AudioCaptureRendererConfigure() replace 512000 with 1411200 for 44.1KHZ and 1536000 for 48KHz////3. In main.c pass 44100 or 48000 in place of 16000 as argument for AudioCodecConfig()//4. In main.c pass 44100 or 48000 in place of 16000 as argument for AudioCaptureRendererConfigure() ////As don't have expertise on Audio codec, so it is best to post query in TI-Audio codec((AIC3254) ) forum to know how to configure PLL related configuration.//特别注意：//(3)mDNS使用服务器开启及客户端请求问题// 详见(CC3200 WiFi Audio App) http://e2e.ti.com/support/wireless_connectivity/simplelink_wifi_cc31xx_cc32xx/f/968/t/438276// 详见(How 2 CC3200s get each other IP address?) http://e2e.ti.com/support/wireless_connectivity/simplelink_wifi_cc31xx_cc32xx/f/968/p/400118/1415303#1415303//(4)回放模式设置// (Using Audio booster pack wifi demo app example CC3200) http://e2e.ti.com/support/wireless_connectivity/simplelink_wifi_cc31xx_cc32xx/f/968/t/390582#pi239031348=2&pi239031350=3//(5)操作步骤//<1>按下复位键(SW1）//<2>按下发射板的 SW3 键，绿灯长亮//<3>再按下接收板的 SW2 键，黄灯长亮，红灯也长亮//此时发射板的红灯及黄灯熄灭，绿灯常亮表示发射板正在传输音频，接收板绿灯熄灭，黄灯及红灯常亮表示正在接收音频//(6)关于双向音频流控制//(does the wifi audio sample really running on bidirectional?) http://e2e.ti.com/support/wireless_connectivity/simplelink_wifi_cc31xx_cc32xx/f/968/t/402341// 在(5)基础上// <4>再按下发射板的SW2键，此时绿灯和黄灯亮// <5>再按下接收板的SW3键，此时绿灯，黄灯和红灯都亮，而且之前的发射板的三个灯也全亮。—双向语音设置成功！//(7)注意在手机播放音频信号，用CC3200无线接收播放会有"叭叭叭"的杂音，是由于手机射频信号造成的！将手机设置为飞行模式再次播放杂音消除！//(8)关于无线UDP数据量问题// UDP每包发送1kBytes数据,16kHz采样率*16bit*2通道=64kBytes字节/s 每秒采集16k次=32k个高低电平，高低电平=左右声道，每个声道16bit数据表示，// 则有每秒32k*2Bytes=64kBytes数据流！也就大约512kbps！如果采用44.1kHz则会产生大约1.5Mbps带宽//(9)连接AP的方式采用直接连接的方式！

//操作步骤//首先设置路由器：#define SSID_NAME "CC32" /*cc3200demo AP SSID */#define SECURITY_TYPE SL_SEC_TYPE_WPA_WPA2 /* SL_SEC_TYPE_OPEN Security type (OPEN or WEP or WPA*/#define SECURITY_KEY "12345678"//<1>按下复位键(SW1）//<2>按下发射板的 SW3 键，绿灯长亮//<3>再按下接收板的 SW2 键，黄灯长亮，红灯也长亮 —单向语音设置成功！//<4>再按下发射板的SW2键，此时绿灯和黄灯亮//<5>再按下接收板的SW3键，此时绿灯，黄灯和红灯都亮，而且之前的发射板的三个灯也全亮。—双向语音设置成功！// 通过板卡上的MIC和插入的耳机就也进行语音双向传输了

xiaoguang li1：

回复 Terry Han:

好  谢谢您

xiaoguang li1：

回复 Terry Han:

我按照您第9条的改了代码    两个连接起来是烧写到FLASH里面以后开机自动连接吗？还需要smatrconfig吗?    我烧写到flash以后两个板子的绿灯一直亮   应该没有连接上   是我还缺什么东西吗？

Terry Han：

回复 xiaoguang li1:

你需要通过Smartconfig首先连接到路由器上，或者直接修改代码，将Smartconfig的部分去掉，直接连接目标的路由器，然后通过步骤9进行连接操作