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1、54321GeneratedbyFoxitPDFCreator?FoxitSoftwarehttp://www.foxitsoftware.comForevaluationonly.DDLCDPANEL/TOUCHPANELCTVoutCDDRII64Mx16bit(CVBS/YPbPr/HDMI)AudioDDRII64Mx16bitRK2818WiFiNANDFLASH1BlueToothx4dieBB3GNANDFLASH2x4dieCAMERAJOGIRCOMPASSUSB/CHARGE/PowerAA福州瑞芯微電子有限公
2、司Title:RK2818_Android參考設計圖File:SYSTEMDIGRAMREV:V1.0CreateDate:Wednesday,July29,2009PageNum:1ModifyDate:Friday,June25,2010PageTotal:135432154321GeneratedbyFoxitPDFCreator?FoxitSoftwareVersionDateAuthorChangeNotehttp://www.foxitsoftware.comForevaluationonly.ApprovedV1.0
3、2010.7.8ZZWFirsteditionDDGPIOGPIOFUNCTIONGPIOFUNCTIONGPIOFUNCTIONGPIOFUNCTIONPA0RECOVERPB7TOUCH_DOUT(SPI_MISO)PF3SD0_DETPG0UART0_RXPA1EXT_I2C_INTPE0GSENSOR_INTPF4NANDDETECTPG1UART0_TXPA2JOG_INTPE1PLAY_ON_IDLEPF5PWM3(VDDajust)PG2WIFI_CMDCCPA3COMP_INTPE2WAKEUP_INTPF7SPK
4、_CTLPG3WIFI_D0PA4IR_INTPE3PENIRQNPH0SD0_CMDPG4WIFI_D1PB0UART2_RXPE4I2C0_SDAPH1SD_D0PG5WIFI_D2PB1UART2_TXPE5I2C0_SCLPH2SD_D1PG6WIFI_D3PB2UART0_CTSPE6I2C1_SDAPH3SD_D2PG7WIFI_CLKPB3UART0_RTSPE7I2C1_SCLPH4SD_D3AIN0BAT_DETBBPB4LCD_DISP_ONPF0UART1_RXPH5SD0_CLKAIN1KEYPB5TOUC
5、H_CLK(SPI_CLK)PF1UART1_TXPH6LCD_SCENAIN2DC_DETPB6TOUCH_DIN(SPI_MOSI)PF2LED_PWM0PH7PWR_ON1.如不選用RK1000,且其他I2C地址不會沖突,那么I2C設備都可掛在I2C1上,I2C0可當IO使用,且上拉電阻可去掉2.如不帶藍牙功能,UART0可當IO使用,包括流控(RTS,CTS)3.如不帶軌跡球功能,PA2可當IO或中斷使用4.如不帶羅盤功能,PA3可當IO或中斷使用5.電阻式觸摸屏時:PB5,PB6,PB7為SPI接口使用,且PB7為SPI
6、_RXD;電容式觸摸屏時:PB5,PB6,可當作普通IO來使用,但PB7固定為觸摸屏復位6.如不帶GPS功能,UART2可當IO使用7.NAND_DET為高時,選擇1.8VNANDFLASH;NAND_DET為低或懸空時,選擇3.3VNANDFLASH福州瑞芯微電子有限公司AATitle:RK2818_Android參考設計圖File:MODIFYNOTEREV:V1.0備注:1.紅色字體的IO,不能更改?。?!CreateDate:Wednesday,July29,2009PageNum:22.RK2818的PA口和PE口可以做中
7、斷輸入口!ModifyDate:Thursday,July08,2010PageTotal:135432154321U3AAS5406-ADJU1GeneratedbyFoxitPDFCreator?FoxitSoftware上電默認為1.2VUSBPWRVBUSVDD12VDD1289ASM3403VBQ1U2AS5406-ADJL2功率電感最小飽和電流:1.2Ahttp://www.foxitsoftware.comForevaluationonly.VDD12J5F18L1600R/100MHZVDDCOREVDDA_DSP
8、PLLUSBD1234VINLX3L24.7uHC3C10C4C11C12C5C6K5VDDCOREVDDA_ARMPLLE182USB_DM226106103103103103103G7D18GNDGNDDMVDDCOREVDDA_CODECPL