scsi spc/sbc的指令集
时间: 2023-12-25 14:01:17 浏览: 47
SCSI(Small Computer System Interface)SPC(SCSI Primary Commands)和SBC(SCSI Block Commands)是SCSI指令集的两个重要部分。SPC定义了与设备通信的基本命令和功能,而SBC则定义了与块设备(如硬盘驱动器)通信的命令和功能。
SPC包括了对设备的识别、初始化、数据传输等基本功能的指令。其中包括了INQUIRY(查询设备信息)、TEST UNIT READY(检测设备是否就绪)、START STOP UNIT(启动或停止设备)等命令,这些命令使得主机能够与SCSI设备进行基本的通信和控制。
而SBC则包括了对于块设备的读写和控制的指令。比如READ(读取数据)、WRITE(写入数据)、VERIFY(校验数据)、FORMAT UNIT(格式化设备)等命令,这些命令使得主机能够与硬盘等块设备进行高效的数据交互。
总的来说,SPC/SBC指令集定义了主机与SCSI设备进行通信和控制的具体命令和功能,它们为SCSI设备的管理和操作提供了标准化的接口和方法。通过这些指令,主机可以有效地与SCSI设备进行通信,执行数据传输和操作控制,从而实现了SCSI设备的高效管理和使用。
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void TestDelay(uint32 delay); void TestDelay(uint32 delay) { static volatile uint32 DelayTimer = 0; while (DelayTimer<delay) { DelayTimer++; } DelayTimer=0; } extern void CAN2_ORED_0_31_MB_IRQHandler(void); #if 1 // #include "Can_Ipw.h" #define MSG_ID 20u #define RX_MB_IDX 1U #define TX_MB_IDX 0U volatile int exit_code = 0; extern Flexcan_Ip_StateType Can_Ipw_xStatus0; /* User includes / uint8 dummyData[8] = {1,2,3,4,5,6,7}; /! \brief The main function for the project. \details The startup initialization sequence is the following: * - startup asm routine * - main() / //extern const Clock_Ip_ClockConfigType Clock_Ip_aClockConfig[1]; extern void CAN0_ORED_0_31_MB_IRQHandler(void); int main(void) { uint8 u8TimeOut = 100U; CanIf_bTxFlag = FALSE; CanIf_bRxFlag = FALSE; / Initialize the Mcu driver / #if (MCU_PRECOMPILE_SUPPORT == STD_ON) Mcu_Init(NULL_PTR); #elif (MCU_PRECOMPILE_SUPPORT == STD_OFF) Mcu_Init(&Mcu_Config); / Initialize the clock tree and apply PLL as system clock / Mcu_InitClock(McuClockSettingConfig_0); while ( MCU_PLL_LOCKED != Mcu_GetPllStatus() ) { / Busy wait until the System PLL is locked / } #endif / (MCU_PRECOMPILE_SUPPORT == STD_ON) / / Write your code here / Mcu_DistributePllClock(); Mcu_SetMode(McuModeSettingConf_0); / Initialize Platform driver */ Platform_Init(NULL_PTR); Port_Init(&Port_Config); Spi_Init(&Spi_Config); #if 1 // CanTrcv_TJA1145_Init(); uint8 SWK_WUF_Detection = 0u; uint8 tempRegVal = 0u; /SBC mode StandBy/ /SBC_SetMode(CANTRCV_TRCVMODE_STANDBY);/ /Disable wakepin/ Sbc_Reg_Write(CanTrcv_Tja1145_Wpe, 0x00, FALSE); /Set Lock control register/ Sbc_Reg_Write(CanTrcv_Tja1145_Lc, 0x00, FALSE); /Can baudrate config/ Sbc_Reg_Write(CanTrcv_Tja1145_Dr, CANTRCV_TJA1145_CAN_DATA_RATE, FALSE); /Set CAN control register/ Sbc_Reg_Write(CanTrcv_Tja1145_Cc, 0x31, FALSE); Sbc_Reg_Read(CanTrcv_Tja1145_Ts, &tempRegVal); Sbc_Reg_Read(CanTrcv_Tja1145_Tes, &SWK_WUF_Detection); Sbc_Reg_Write(CanTrcv_Tja1145_Mc, CanTrcv_Tja1145_Mc_MC_Normal, FALSE); Sbc_Reg_Write(CanTrcv_Tja1145_Cc,CanTrcv_Tja1145_Cc_CMC_Active,FALSE); #endif // Clock_Ip_Init(&Clock_Ip_aClockConfig[0]); volatile Flexcan_Ip_StatusType result = 1; volatile Flexcan_Ip_StatusType result1 = 1; IntCtrl_Ip_EnableIrq(FlexCAN0_1_IRQn); IntCtrl_Ip_InstallHandler(FlexCAN0_1_IRQn, CAN0_ORED_0_31_MB_IRQHandler, NULL_PTR); // Dio_WriteChannel(DioConf_DioChannel_DioChannel_O_S_STB_CAN3_M, STD_LOW);//CAN3 STB Flexcan_Ip_DataInfoType rx_info = { .msg_id_type = FLEXCAN_MSG_ID_STD, .data_length = 8u, .is_polling = TRUE, .is_remote = FALSE }; Flexcan_Ip_MsgBuffType rxData; FlexCAN_Ip_Init(CanController_0, &Can_Ipw_xStatus0, &Flexcan_aCtrlConfigPB[0U]);// while (1) { if(rx_compli==1) { FlexCAN_Ip_SetStartMode(CanController_0); FlexCAN_Ip_ConfigRxMb(CanController_0, RX_MB_IDX, &rx_info, MSG_ID); // rx_info.is_polling = FALSE; FlexCAN_Ip_Send(CanController_0, TX_MB_IDX, &rx_info, MSG_ID, (uint8 *)&dummyData); FlexCAN_Ip_Receive(CanController_0, RX_MB_IDX, &rxData, TRUE); while(FlexCAN_Ip_GetTransferStatus(CanController_0, RX_MB_IDX)
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SBC stream
SBC是Subband Coding的缩写,是一种基于子带的音频编码格式。它是蓝牙音频传输协议(A2DP)所采用的编码格式之一,用于将高质量的音频数据传输到蓝牙耳机或扬声器等设备上。SBC编码器将音频信号分成多个子带,然后对每个子带进行独立编码,以实现更高的压缩比。SBC编码器可以根据不同的应用场景和带宽要求进行配置,以平衡音频质量和传输效率。
如果你想了解更多关于SBC编码格式的信息,可以使用以下命令查看test.sbc文件的格式:
```shell
ffmpeg -i test.sbc
```