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第 6 章 嵌入式系统总线接口. 6.1 串行接口. 6.1.1 串行接口基本原理与结构 1 .串行通信概述 常用的数据通信方式有并行通信和串行通信两种。当两台数字设备之间传输距离较远时,数据往往以串行方式传输。串行通信的数据是一位一位地进行传输的,在传输中每一位数据都占据一个固定的时间长度。与并行通信相比,如果 n 位并行接口传送 n 位数据需时间 T ,则串行传送的时间最少为 nT 。串行通信具有传输线少、成本低等优点,特别适合远距离传送。 ① 串行数据通信模式 串行数据通信模式有单工通信、半双工通信和全双工通信 3 种基本的通信模式。 - PowerPoint PPT Presentation
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6
6.1 6.1.1 1nnTnT 3 AB ABBA ABBA
a. 01 11.52ASCII17ASCII10
bit/s1201010120=1200b/s=12001/1200=0.833ms15030060012002400480096001440028800 8byte1110001001111110
11.521811180%2
1299%
2RS-232CRS-232CEIA1RS-232CEIA6.1.1RS-232C12VTTLRS-232CMAX232
6.1.1 EIA
L H -25V-3V +3 V+25V 1 0 SPACE MARK
2RS-232CEIARS-232C25DB-259DB-9D259D6.1.1RS-232C DB-9 CDModemModem RXD TXD DTRModem SG DSRModem
RTSModemModem CTSModemMo-dem RIModem
a DB-25 b DB-96.1.1 259D
3RS-232CRS-232C6.1.2RS-232C6.1.39 600 bps156.1.2 6.1.3
3RS-422RS-422RS-232RS-42210Master10SalveRS-422RS-422XON/XOFFRS-42240001219m10Mb/s100Kb/s100m1 Mb/sRS-422300m
4RS-485RS-422EIARS-485RS-485RS-485TTLTTL200mVRS-485RS-422RS-48532
RS-485-7+12V12kRS-485RS-422RS-485RS-422RS-48510Mb/s100Kb/sRS-485300m
6.1.2 S3C2410AUART1UARTUARTUniversal Asynchronous Receiver and TransmitterRS-232C 9DB-9UART6.1.45811.52UART58 11.52
6.1.4 UART 2S3C2410AUARTS3C2410AUART3I/OSIODMAUARTDMACPUUARTUART230.4KbpsUEXTCLKUARTUARTUART16FIFO
6.1.5S3C2410AUARTPCLKUEXTCLK16FIFOFIFOTxDnRxDnFIFO
6.1.5 S3C2410AUARTFIFO
3S3C2410A UARTS3C2410AUART1Data Transmission158112ULCONn0Tx FIFOFIFO2Data Reception158112ULCONn3FIFORxFIFO
3Auro Flow ControlAFC6.1.6S3C2410AUART0UART1nRTSnCTSUARTUARTModem,UMCONnnRTS6.1.6 UART AFC
AFCnRTSnCTSnCTSAFCnCTSUARTFIFOUARTFIFOUARTFIFO2nRTSFIFO1nRTSAFCnRTSFIFO4RS-232RS-232C interfaceUARTModemnRTSnCTSnDSRnDTRDCDnRII/OAFCRS-232C5DMAInterrupt/DMA Request GenerationS3C2410AUART5Tx/Rx/ErrorUTRSTATn/UERSTATn
UCONn1UERSTSTnUCONn1FIFOFIFORxFIFORxFIFORxUCONn1FIFOFIFOFIFOTxFIFOTxFIFOTx
DMAnDMAnRxTx6Baud-Rate GenerationUARTS3C2410AUEXTCLKUCONnPCLKUEXTCLK16UARTUBRDIVn167Loopback ModeS3C2410A DARTUARTRXDTXDRXDSIOUARTUCONn
8Infra-Red IR ModeS3C2410AUARTUARTULCONn4S3C2410A UARTS3C2410AUARTUART1UARTULCONn UARTUART0UART2ULCON0ULCON1ULCON20x5000 00000x5000 40000x5000 80006.1.20x000x3
6.1.2 UART
2UARTUCONnUARTUCONnUART0UART2UCON0 UCON1UCON20x5000 00040x5000 40040x5000 80046.1.30x000x245
6.1.3 UARTUCONn
UCONn[10]0PCLK UBRDIVn = intPCLK / bps x 16 -11UEXTCLK@GPH8UBRDIVn=intUEXTCLK/bps16-1[9]01[8]01Rx[7]01[6]01[5]01[4]
3UART FIFOUFCONnUART FIFOUFCONnUART0UART2FIFOUFCON0 UFCON1UFCON20x5000 00080x5000 40080x5000 80086.1.40x00x0
6.1.4 UART FIFOUFCONn
4UART ModemUMCONnUART ModemUMCONnUART0 UART1 UMCON0 UMCON10x5000 000C0x5000 400C0x5000 800C0x5000 800C6.1.50x00x0
6.1.5 UART ModemUMCONn
5UARTUARTUART TX/RXUTRSTATnUARTUERSTATnUART FIFOUFSTATnUART UMSTATnUARTS3C2410A200MHz&266MHz32-Bit RISC Microprocessor USERS MANUAL Revision 1.0www.samsung.com6UARTUARTUARTUTXHnUARTURXHn
7UARTUARTUBRDIVnUBRDIV0UBRDIV1UBRDIV2UARTUBRDIVnUBRDIVn = intPCLK/bps16 11216 1UARTS3C2410AUEXTCLKS3C2410ADARTUEXTCLKUARTUEXTCLKUARTUBRDIVnUBRDIVn = intUEXTCLK / bps 16 112161UEXTCLKPCLK115 200 bpsPCLKUEXTCLK40MHzUBRDIVnUBRDIVn = int40000000/115200 161= int21.71= 211 = 20
6.1.3 S3C2410A UART1S3C2410A UARTRS-232CRXDTXDGNDRS-232CS3C2410ALVTTLRS-232C1-5V-15V0+5V+15VLVTTL123.3V000.4VMAX232S3C2410AMAX2324.21MAX232MAX232www.maxim-ic.com6.1.7UART0UART1RS-232C9DLEDLED
6.1.7 S3C2410ARS-232C
2S3C2410A UARTRS422RS485MAX487S3C2410AUART1RS422RS4856.1.8RS422RS422MAX487ERS422RS485RS485MAX487ERS485MAX487EROA > B 200mVROA < B 200mVRORORO
DEDEDIABVCC4.75V 5.25VGNDMAX487EMAX487Ewww.maxim-ic.com
6.1.8 S3C2410ARS422RS485
6.1.4 S3C2410A UART[]UART0UART0UART1PCARMUART0ARMUART0UART0UART1PC1UARTUART0
#define rULCON0*volatile unsigned*0x50000000 //UART0#define rUCON0*volatile unsigned*0x50000004 //UART0#define rUFCON0*volatile unsigned*0x50000008 //UART0 FIFO#define rUMCON0*volatile unsigned*0x5000000c //UART0 Modem#define rUTRSTAT0*volatile unsigned*0x50000010 //UART0 Tx/Rx#define rUERSTAT0*volatile unsigned*0x50000014 //UART0 Rx#define rUFSTAT0*volatile unsigned*0x50000018 //UART0 FIFO
#define rUMSTAT0*volatile unsigned*0x5000001c //UART0 Modem#define rUBRDIV0*volatile unsigned*0x50000028 //UART0#ifdef__BIG_ENDIAN //#define rURXH0*volatile unsigned char*0x50000023 //UART0#define rURXH0*volatile unsigned char*0x50000027 //UART0#define WrUTXH0ch*volatile unsigned char*0x50000023unsigned charch#define RdURXH0*volatile unsigned char*0x50000027
#define UTXH00x50000020+3 //DMA#define URXH00x50000024+3#else //#define rUTXH0*volatile unsigned char*0x50000020 //UART0 Transmission Hold#define rURXH0*volatile unsigned char0x50000024 //UART0 Receive buffer#define WrUTXH0ch*volatile unsigned char*0x50000020unsigned charch#define RdURXH0*volatile unsigned char*0x50000024#define UTXH00x50000020 //DMA#define URXH00x50000024#endif
2pclkbandUart_Init void Uart_Initint pclkint baud int I; if pclk= =0 pclkPCLK; rUFCON0=0x0; //UARTO FIFOFIFO rUFCON1=0x0; //UART1 FIFOFIFO rUFCON2=0x0; //UART2 FIFOFIFO rUMCON0=0x0; //UARTO MODEMAFC rUMCONI=0x0; //UART1 MODEMAFC //UART0
rULCON00x3; //18 rUCON00x245; // rUBRDIV0 =intpclk/16/baud+0.5-1; // //UART1 rULCON1=0x3; rUCON1=0x245; rUBRDIV1=intpclk/16/baud-1; //UART2 rULCON2=0x3; rUCON20x245; rUBRDIV2=intpclk/16/baud-1; fori0; i< 100; i++;
3whichUartUARTvoid Uart_SendByteint data ifwhichUart= =0 ifdata= =n whilerUTRSTAT00x2 Delay10 //WrUTXHr
whilerUTRSTAT00x2 // Delay10 WrUTXH0data else ifwhichUart= =1 ifdata=n whilerUTRSTAT10x2 Delay10 // rUTXH1=r whilerUTRSTAT10x2 // Delay10 rUTXH1data
else ifwhichUart= =2 if data= =\n whilerUTRSTAT20x2 Delay10 // rUTXH2r whilerUTRSTAT20x2 // Delay10 rUTXH2data
40 char Uart_GetKeyvoid ifwhichUart0 ifrUTRSTAT00x1 //UARTO return RdURXH0 else return 0 else ifwhichUart= =1 ifrUTRSTAT10x1 //UART1 return RdURXH1 else return 0
else ifwhichUart= =2 ifrUTRSTAT20x1 //UART2 return RdURXH2 else return 0 else return 0 5UART0UART0UART1Uart_SelectnUARTn
includestringh>include\INC\confighvoid Mainvoidchar dataTarget_Initwhile1data=Uart GetKey //ifdata0x0Uart_Select0 //UART0Uart_Printfkeyc\ndataUart_elect 1 /UART1Uart_Printfkeyc \ndataUart_Select0
6.2 I2C 6.2.1 I2CI2C BUSInter Integrated Circuit BUSPhilipsI2C6.2.1I2CSDASCLSDASCLI2C
1I2CI2CSDA6.2.2SCLSDAI2C6.2.2SCLSDAI2C
6.2.1 I2C6.2.2 I2C
1717012SDA8ACKMSB311ACKACKSCL981SCLACKSDASDA8SDASDA8
4I2CI2CSDASDAI2C5I2C 71 81ACK
6.2.2 S3C2410AI2CS3C2410AI2C6.2.34S3C2410AI2CIICCONI2CIICSTATI2C/IICDSI2CTx/RxIICADDI2C
6.2.3 S3C2410AI2C
1IICCONIICCONI2C0x540000000000xxxx6.2.16.2.1 IICCONI2C
2IICSTATI2C/IICSTATI2C/0x54000004000000006.2.26.2.2 IICSTATI2C/
3IICADDI2CIICADDI2C0x54000008xxxxxxxx6.2.3 6.2.3 IICADDI2C
5-38 IICDS 4IICDSIICDS0x5400000Cxxxxxxxx5-38
6.2.3 S3C2410AI2CS3C2410A I2CI2CEEPROMKS24C080CJXARM9-24106.2.46.2.4 S3C2410A I2CKS24C080C
KS24C080CI2C0xA0S3C2410AI2C1I2CI2CI2CI2Cvoid iic_init
2I2CI2Cvoid iic_write_24C08LJ32 slvAddrU32 addrU8 dataslvAddr0xA0addrdataI2CI2CI2C
I2CI2Ciicdata tx size 1
3I2CI2Cvoid iic_read_24C08U32.s1vAddrU32 addrU8dataslvAddr0xA0addrdataI2C
I2C
I2CI2Ciic_buffer
4I2CI2CPOLLACKRDDATAWRDATAI2C
6.3 USB 6.3.1 USBUSBUniversal Serial BusCompaqHPIntelLucentMicrosoftNECPhilips1USB1USBUSBUSB2USBUSBUSBUSBUSBUSBUSBUSBHubUSB127
3USBMb/s4USBUSB5USB45m6USB5V/100mA500mAUSB
2USBUSBUSBUSBUSB31USBUSBHubFunctionHubUSBFunctionFunctionUSBUSBUSBUSB2USBUSBUSBHubPCI
3USBUSBUSBUSBUSBUSBUSBUSBHubPoint-to-PointHubHubHubUSB75HubCompound Device77Function
3USB4USB480Mb/s12Mb/s1.5Mb/s3USB2.0HubHub4USB
1USBUSBUSBHubUSBUSBUSBBus-Powered DeviceUSBAlternateSelf-Powered Device2USBUSBUSB
5USBPollingUSBHost-ScheduledToken-BasedUSB3USBUSBToken PacketUSBData Packet Handshake Packet
USBUSBUSBTransaction ScheduleNAK
6RobustnessUSB CRC Timeouts
6.3.2 S3C2410AUSBS3C2410AUSBUSBS3C2410AUSB6.3.1S3C2410AUSBUSBOHCI 1.0USB1.1USBUSBOHCI6.3.1S3C2410AUSB6.3.2S3C2410AUSBUSB12MbpsDMA5FIFOEP016EP1EP464IN/OUT FIFO RAMDMADMAEP1EP2EP3EP4
S3C2410AUSB6.3.2USERS MANUAL S3C2410A-200MHz & 266MHz 32-Bit RISC Microprocessor Revision 1.0www.samsung.com
6.3.1 S3C2410AUSB
6.3.2 S3C2410AUSB
6.3.1 USBOHCI
6.3.2 S3C2410AUSB
6.3.3 S3C2410AUSB1S3C2410A USBS3C2410AUSBUSBS3C2410A1DEVICE USB2HOST USBUSB6.3.3
6.3.3 S3C2410A USB
2S3C2410A 1USBUSBUSBUSB48 MHzS3C2410AUPLLUSBPLLUSBUPLL
USB1.x5USBdevice descriptorconfiguration descriptorinterface descriptorendpoint descriptorstring descriptorUSBUSBUSBEmbest EDUKIT - II/IIIUSB
ConfigUsbdUSB1324013USB 2USBS3C2414A56USBSRCPNDINT_USBDIRQ
3USBUSBUSB4USBUSBUSBUSBLTSBUSB
0USB0USB13USB3DMA
6.4 SPI 6.4.1 SPISPISerial Peripheral InterfaceMotorolaSPIA/DD/ALCDSPI44MOSIMISOSCLKSCKSPI
MOSIMOSISISDIMISOMISOSOSDOI/OSPISPISPI6.4.1SPISPISPIMOSIMISO
aSPI b SPI 6.4.1 SPI
SPISPI4A/D6.4.26.4.2 3SPI
6.4.2SPI31A2A1ABA3ABCBCSPI50SPI4SCK
010MOSIMISOSCK0SCKMISOXSPISPI6.4.2 S3C2410A SPI1SPIS3C2410ASPI6.4.3S3C2410ASPISPIv2.118DMASPI8SPI81
6.4.3 S3C2410ASPI
2SPISPIS3C2410A8SPISPPREnSPISPDATnSPInSSSPDATn3SPIENSCKSPCONnMSTRSPDATnSPI
SPPREn SPCONnSPI SPDATn100 xFFMMCSD GPIOnSSMMCSD REDY =1SPDATn 1SPCONnTAGDSPDATOxFFREDY 2SPCONnTAGDREDY GPIOnSSMMCSD
4SPIS3C2410A46.4.4SPIFormat BSPISPIBSPIDMAFormat BFormat BDATA_READSPICLKFormat BDATA_READSPICLK5SPI1SPICONnSPICONnSPIn=010x59000000/0x590000200x00SPISPICONn6.4.1
6.4.1 SPICONn
MSBLSB;MSBLSB6.4.4 SPI
6.4.2 SPSTAn 2SPSTAnSPSTAnSPI0x59000004/0x590000240x01SPSTAn6.4.2
6.4.3 SPPINn 3SPPINnSPPINnSPI0x59000008/0x590000280x02SPPINn6.4.3
SPInSSSPCONnMSTRnSSSPInSSSPPINENMULGPIOSPInSSSPIMIS0SPIMOS1SPISPIMIS0SPIMOS1SPICLKSPISPICLKSPIMOS1SPIMIS0
4SPIPREnSPISPIPREnSPI0x5900000C /0x5900002C0x00SPPREn[7:0]fPCLK/215SPTDATnSPTDATnSPI0x59000010/0x590000300x00SPI6SPRDATnSPRDATnSPI0x59000014/0x590000340x00SPI
6SPIARMSPIJ6026.4.5PCIPCI6.5PCI6.4.5 SPI
6.4.3 S3C2410ASPIS3C2410ASPI0SPI1
6.5 PCI 6.5.1 PCIPCIPeripheral Component InterconnectIntelIntelPCISIGPeripheral Component Interconnect Special Interest GroupPCIPCI1.02.02.1PCI32645V3.3V2.16466MHz
PCI326433MHz66MHzPCIPCI-X64133 MHzPCIISAISAPCIplug and plugPCIPCIMasterInitiatorMasterPCISlaveTargetSlave MasterPCI
32PCI1CLKPCIRSTReset2 FRAME IRDY# Master DEVSEL#Slave TRDY# Slave STOP# Slave IDSEL#
3 AD[31:0] C/BE[3:0] PAR4 REQMaster GNTMaster5 PERK SERR
PCI6.5.1REQ#GNT#FRAME#ADSlaveC/BEPCIDEVSEL# IRDY# TRDY# MasterFRAMEIRDYPCI132MB/s
6.5.1 PCI
6.5.2 PCIS3C2410APCI6.5.26.5.2bPCI6.5.2aPCINET_RXD0NET_RXDVEX_CS2NET_TXD0NET_RXD1NET_RXD2NET_RXCLKNET_TXCLKNET_COLNET_MDCNET_TXD2NET_TXD3SPICLK1SPIMOSI1BUT_INT1NET_CRSEX_CS1NET_RXD3NET_RXERNET_MDI0SPIMOSI0NET_TXENSPIMISO0NET_TXD1SPICLK0SPIMISO1BUT_INT2NSS0IICSCLIICSDA
aPCI bPCI6.5.2 PCI
6.6 I2S6.6.1 CDMP3MDVCDDVDA/DD/ADSPA/DDSPD/A
Nyquist40kHz8kHz11.025kHz22.05kHz16kHz37.8kHz44.1kHz48kHzDVD81216
PCMMP3WMAWAVOgg VorbisRAAACATRAC 3 1PCMPCMCD-ROMDVDPCM44.1kHz163216PCM1.41Mb/s32PCM2.42Mb/s700MBCD6016PCM
2MP3MP3MPEG1 Layer-3MP3PCMCD10MBMP31MBMP3112kb/s128kb/sMP3CDMP323WMAWMAWindows Media AudioWMA64kbpsWMACDWMAWindows Media Rights ManagerWMA
4WAVWAVWAVRIFFResource Interchange File FormatWAVPCMACMWAVWindowsPCMWAVWAVWAVPCMWAVMP3WMA5Ogg VorbisOgg VorbisVorbisOGGOgg VorbisMP3Ogg VorbisOgg Vorbis
6RARARealAudioRARAATRAC3WMARA7APEAPEMonkeys AudioMP3APEAPE
8AACAACAdvanced Audio Coding4896kHzAAC320kbps5.1ITU-RAACMPEG-2MP330%9ATRAC 3ATRAC3Adaptive Transform Acoustic Coding3MDATRACATRAC2MP3ATRAC3OpenMG
6.6.2 I2S1I2SI2SI2SInter-IC Sound BusPhilipI2SI2S3SDSerial dataWSWord selectSCK Continuous Serial clockI2S6.6.1
ab
c6.6.1 I2S
2I2SI2S6.6.26.6.2 I2S
1SD816MSBMost Significant Bit0LSBLeast Significant Bit 2WSWS=0WS=1WSMSBWS
3SCKI2SI2S6.6.3 S3C2410AI2S1S3C2410A I2SI2SCODECS3C2410AI2SInter-IC Sound8/16CODECI2SMSB-justifiedFIFODMA
S3C2410A I2S31FIFOI2SFIFOFIFOFIFOFIFO1FIFO0FIFOFIFO1FIFO0FIFOCPUFIFO2DMADMADMAFIFOFIFODMA3I2S
2S3C2410A I2SS3C2410A I2S6.6.3 6.6.3 S3C2410A I2S
S3C2410A I2S BRFCFIFO IPSR5bitIPSR_AIPSR_BI2SCODEC TxFIFORxFIFO64byteFIFOTxFIFORxFIFO SCLKGIISCLK CHNCIISCLKIISLRCK SFTR16SFTRSFTR
3S3C2410A I2SS3C2410AI2SI2SMSB-justified1I2SI2SIISDIIISDOIIS-LRCKIISCLK4IISLRCKIISCLK2MSBMSB00MSBLSBIISLRCKMSB
LRIISLRCKIISLRCKMSB2MSB-justifiedMSB-justifiedI2SI2SIISLRCKMSB-justifiedIISLRCKCODECLK6.6.1fs
6.6.1 IISLRCKCODECLK
IISLRCKfs/kHz8.00011.02516.00022.05032.00044.10048.00064.00088.20096.000CODECLK/MHz256 fs2.04802.82244.09605.64488.192011.289612.288016.384022.579224.5760384 fs3.07204.23366.14408.467212.288016.934418.432024.576033.868836.8640
4S3C2410A I2SS3C2410A I2SS3C2410A I2SIISCONI2S20x5500 00000x5500 00020x100IISCON6.6.2
6.6.2 IISCON
IISMODI2S20x5500 00040x5500 00060x0IISMOD6.6.3
6.6.3 IISMOD
6.6.4 IISPSR IISPSRI2S2 0x5500 00080x5500 000A0x0IISPSR6.6.4
6.6.5 IISFCONIISFCONIIS FIFO2 0x5500 000C0x5500 000E0x0IISFCON6.6.5
IISFIFOIIS FIFO20x5500 00100x5500 00120x0I2S 5I2S1I2SI2S IISFCONFIFO IISFCONDMA IISFCON2I2SI2S IISFCONFIFOFIFO IISFCONDMA IISFCON
6.6.4 I2SS3C2410AI2SPhilipsUDA1341TS CODEC6.6.4UDA1341TSMICROPHONESPEADERUDA1341TSPGAAGCUDA1341TSDSPS3C2410AI2SUDA1341TSBCKWSDATAISYSCLKUDA1341TSUDA1341TSL3L3DATAL3MODEL3CLOCKL3DATAL3MODEL3CLOCKL3DATAL3MODEL3CLOCKUDA1341TSS3C2410AL3I/O
J611PHONESPEADER6.6.4 I2SUDA1341TS
#define PLAY 0#define RECORD 1//#define REC_LEN 0x50000 //327,680 Bytes#define REC_LEN 0x100000 //1,048,576 Bytes#define DataCount 0x10000 //IIS Master/Slave Data Rx/Tx Count#define DataDisplay 0x100 //IIS Master Data Display Count#define PollMode 0 //1: Polling Mode#define DMA2Mode 1 //1: DMA2 Mode#define MICGain_Amp_Sel 0 //0: Input channel 2 Amp. 1: MIC Amp.unsigned char *Buf, *_temp;unsigned short *rec_buf;volatile unsigned int size = 0;volatile unsigned int fs = 0;volatile char which_Buf = 1;volatile char Rec_Done = 0;volatile char mute = 1;void PlayTest_Iisvoid{unsigned int save_B, save_E, save_PB, save_PE;Uart_TxEmpty0;
2PCLKIISPCLK33MHzChangeClockDivider1,1; //1:2:4ChangeMPllValue0x96,0x5,0x1; //FCLK=135.428571MHz PCLK=33.857142MHzUart_Init33857142,115200;Uart_Printf"[ IIS test Play using UDA1341 CODEC ]\n";3save_B = rGPBCON;save_E = rGPECON;save_PB = rGPBUP;save_PE = rGPEUP;IIS_PortSetting;
8IISIIS IISDMA//IIS Tx StartUart_Printf"\nPress any key to exit!!!\n";rIISCON |= 0x1; //IIS Interface startwhile!Uart_GetKey{ifrDSTAT2 & 0xfffff < size/6ChangeDMA2;}ChangeDMA2which_Bufwhich_BufDMA2_Done
21void Record_Iisvoid{unsigned int save_B, save_E, save_PB, save_PE;Uart_TxEmpty0;ChangeClockDivider1,1; //1:2:4ChangeMPllValue0x96,0x5,0x1; //FCLK=135428571Hz, PCLK=3.385714MHzUart_Init33857142,115200;Uart_Printf"[ Record test using UDA1341 ]\n";save_B = rGPBCON;save_E = rGPECON;save_PB = rGPBUP;save_PE = rGPEUP;IIS_PortSetting;
3Uart_Printf"End of Record!!!\n";Uart_Printf"Press any key to play recorded data\n";Uart_Printf"If you want to mute or no mute push the 'EIN0' key repeatedly\n";Uart_Getch;size = REC_LEN * 2;Uart_Printf"Size = %d\n",size;Init1341PLAY;pISR_DMA2 = unsignedDMA2_Done;rINTMSK = ~BIT_DMA2 | BIT_EINT0;
6 1.2.3.RS-232C4.RS-232 RS-422RS-4855.UART6.6.1.5S3C2410AUART7.S3C2410AUART8.S3C2410A UART9.UART10.UARTUCONn11.UART FIFOUFCONn12.UART ModemUMCONn13.www.maxim-ic.comMAX232
14.www.maxim-ic.comMAX48715.I2C16.6.2.3S3C2410AI2C17S3C2410A I2C 18.IICCONI2C19.IICSTATI2C/20.IICADDI2C21.IICDS22.www.samsung.comKS24C080C23.USB24.USB
25.USB26.USB27.6.3.1S3C2410AUSB28.6.3.2S3C2410AUSB29.www.samsung.comS3C2410AUSBOHCI30.www.samsung.comKS24C080Cwww.samsung.com S3C2410AUSB 31.SPI32.6.4.3S3C2410A 33.SPI34.S3C2410A SPI
35.32PCI36.6.5.1 PCI37.38.I2S39.6.6.2I2S40.S3C2410A I2S41.6.6.3S3C2410A I2S42.I2SMSB-justified43.S3C2410A I2S44.I2S45.www.semiconductors.philips.comUDA1341TS