翻译Low-power mode (LPM) is used to reduce system quiescent currents. Low-power mode may be entered only by sending the Low-power command. When returning to Normal mode, all register settings is maintained. The Enter Low-power mode register is write only and has the effect of going to LPM and beginning operation as selected (polling, interrupt timer). When returning form Low-power mode, the first SPI transaction will return the Fault Status and the intflg bit set to high, as well as the actual status of the Input pins.

时间: 2024-04-11 08:30:52 浏览: 170
低功耗模式(LPM)用于降低系统静态电流。只能通过发送低功耗命令进入低功耗模式。返回到正常模式时,所有寄存器设置将被保留。 进入低功耗模式寄存器只能写入,并且具有进入所选的LPM和开始操作(轮询、中断计时器)的效果。从低功耗模式返回时,第一个SPI事务将返回故障状态和intflg位设置为高,以及输入引脚的实际状态。
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请翻译In normal mode, the chip operates as selected in the available registers. Any command may be loaded in normal mode, although not all (Low-power mode) registers are used in the Normal mode. All the LPM registers must be programmed in Normal mode as the SPI is not active in LPM. The Normal mode of the chip is used to operate the AMUX, communicate via the SPI, Interrupt the IC, wetting and sustain currents, as well as the thresholds available to use. The WAKE_B pin is asserted (low) in Normal mode and can be used to enable a power supply (ENABLE_B). Various fault detections are available in this mode including overvoltage, overtemperature, thermal warning, SPI errors, and Hash faults.

在正常模式下,芯片按照可用寄存器中选择的方式运行。在正常模式下可以加载任何命令,尽管并非所有的低功耗模式寄存器都在正常模式下使用。在低功耗模式下,所有的LPM寄存器必须在正常模式下进行编程,因为SPI在LPM中不活动。芯片的正常模式用于操作AMUX、通过SPI进行通信、中断IC、湿润和维持电流,以及可用的阈值。在正常模式下,WAKE_B引脚被设为低电平,并可用于启用电源(ENABLE_B)。该模式下提供了各种故障检测功能,包括过压、过温、热警告、SPI错误和哈希故障。

翻译The tri-state command is use to set the input nodes as high-impedance (Table 16). By setting the tri-state register bit to logic [1], the input is high-impedance regardless of the Wetting current setting. The configurable comparator (4.0 V default) on each input remains active. The MCU may change or update the tri-state register via software at any time in Normal mode. The tri-state register defaults to 1 (inputs are tri-stated). Any inputs in tri-state is still polled in LPM but the current source is not active during this time. The determination of change of state occurs at the end of the tACTIVEPOLL and the wake-up decision is made.

三态命令用于将输入节点设置为高阻抗(表16)。通过将三态寄存器位设置为逻辑[1],无论润湿电流设置如何,输入都是高阻抗的。每个输入上的可配置比较器(默认为4.0V)仍然处于活动状态。 MCU可以在正常模式下随时通过软件更改或更新三态寄存器。三态寄存器默认为1(输入处于三态)。在LPM中仍然轮询任何处于三态的输入,但在此期间电流源不活动。状态更改的确定发生在tACTIVEPOLL结束时,并做出唤醒决定。
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分析以下贴出的代码,为什么在receiveCount为1的时候调用了USCI_B_I2C_masterReceiveMultiByteFinish,而获取最后一个字节的时候,调用了USCI_B_I2C_masterReceiveMultiByteNext? /* --COPYRIGHT--,BSD * Copyright (c) 2017, Texas Instruments Incorporated * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * * Neither the name of Texas Instruments Incorporated nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * --/COPYRIGHT--*/ #include "driverlib.h" //***************************************************************************** //! This example shows how to configure the I2C module as a master for //! multi-byte reception with help of interrupts. The address of the slave module //! that the master communicating with also set in this example. This example uses //! the interrupt driven mode to receive data. //! //! This example uses the following peripherals and I/O signals. You must //! review these and change as needed for your own board: //! - I2C peripheral //! - GPIO Port peripheral (for I2C pins) //! - SCL2 //! - SDA //! //! This example uses the following interrupt handlers. To use this example //! in your own application you must add these interrupt handlers to your //! vector table. //! - USCI_B0_VECTOR //! // //***************************************************************************** //***************************************************************************** // //Set the address for slave module. This is a 7-bit address sent in the //following format: //[A6:A5:A4:A3:A2:A1:A0:RS] // //A zero in the "RS" position of the first byte means that the master //transmits (sends) data to the selected slave, and a one in this position //means that the master receives data from the slave. // //***************************************************************************** #define SLAVE_ADDRESS 0x48 //***************************************************************************** // //Specify Expected Receive data count. // //***************************************************************************** #define RXCOUNT 0x05 unsigned char receiveBuffer[10] = { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01}; unsigned char *receiveBufferPointer; unsigned char receiveCount = 0; void main () { //Stop WDT WDT_A_hold(WDT_A_BASE); //Assign I2C pins to USCI_B0 GPIO_setAsPeripheralModuleFunctionInputPin( GPIO_PORT_P3, GPIO_PIN1 + GPIO_PIN2 ); //Initialize Master USCI_B_I2C_initMasterParam param = {0}; param.selectClockSource = USCI_B_I2C_CLOCKSOURCE_SMCLK; param.i2cClk = UCS_getSMCLK(); param.dataRate = USCI_B_I2C_SET_DATA_RATE_100KBPS; USCI_B_I2C_initMaster(USCI_B0_BASE, ¶m); //Specify slave address USCI_B_I2C_setSlaveAddress(USCI_B0_BASE, SLAVE_ADDRESS ); //Set receive mode USCI_B_I2C_setMode(USCI_B0_BASE, USCI_B_I2C_RECEIVE_MODE ); //Enable I2C Module to start operations USCI_B_I2C_enable(USCI_B0_BASE); //Enable master Receive interrupt USCI_B_I2C_enableInterrupt(USCI_B0_BASE, USCI_B_I2C_RECEIVE_INTERRUPT ); //wait for bus to be free while (USCI_B_I2C_isBusBusy(USCI_B0_BASE )) ; while (1) { receiveBufferPointer = (unsigned char *)receiveBuffer; receiveCount = RXCOUNT; //Initialize multi reception USCI_B_I2C_masterReceiveMultiByteStart(USCI_B0_BASE); //Enter low power mode 0 with interrupts enabled. __bis_SR_register(LPM0_bits + GIE); __no_operation(); } } //****************************************************************************** // //This is the USCI_B0 interrupt vector service routine. // //****************************************************************************** #if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__) #pragma vector=USCI_B0_VECTOR __interrupt #elif defined(__GNUC__) __attribute__((interrupt(USCI_B0_VECTOR))) #endif void USCI_B0_ISR (void) { switch (__even_in_range(UCB0IV,12)){ case USCI_I2C_UCRXIFG: { //Decrement RX byte counter receiveCount--; if (receiveCount){ if (receiveCount == 1) { //Initiate end of reception -> Receive byte with NAK *receiveBufferPointer++ = USCI_B_I2C_masterReceiveMultiByteFinish( USCI_B0_BASE ); } else { //Keep receiving one byte at a time *receiveBufferPointer++ = USCI_B_I2C_masterReceiveMultiByteNext( USCI_B0_BASE ); } } else { //Receive last byte *receiveBufferPointer = USCI_B_I2C_masterReceiveMultiByteNext( USCI_B0_BASE ); __bic_SR_register_on_exit(LPM0_bits); } break; } } }

/*********************************************************************************** Filename: light_switch.c Description: This application function either as a light or a switch toggling the ligh. The role of the application is chosen in the menu with the joystick at initialisation. Push S1 to enter the menu. Choose either switch or light and confirm choice with S1. Joystick Up: Sends data from switch to light ***********************************************************************************/ /*********************************************************************************** * INCLUDES */ #include <hal_lcd.h> #include <hal_led.h> #include <hal_joystick.h> #include <hal_assert.h> #include <hal_board.h> #include <hal_int.h> #include "hal_mcu.h" #include "hal_button.h" #include "hal_rf.h" #include "util_lcd.h" #include "basic_rf.h" /*********************************************************************************** * CONSTANTS */ // Application parameters #define RF_CHANNEL 25 // 2.4 GHz RF channel // BasicRF address definitions #define PAN_ID 0x2007 #define SWITCH_ADDR 0x2520 #define LIGHT_ADDR 0xBEEF #define APP_PAYLOAD_LENGTH 1 #define LIGHT_TOGGLE_CMD 0 // Application states #define IDLE 0 #define SEND_CMD 1 // Application role #define NONE 0 #define SWITCH 1 #define LIGHT 2 #define APP_MODES 2 /*********************************************************************************** * LOCAL VARIABLES */ static uint8 pTxData[APP_PAYLOAD_LENGTH]; static uint8 pRxData[APP_PAYLOAD_LENGTH]; static basicRfCfg_t basicRfConfig; // Mode menu static menuItem_t pMenuItems[] = { #ifdef ASSY_EXP4618_CC2420 // Using Softbaugh 7-seg display " L S ", SWITCH, " LIGHT ", LIGHT #else // SRF04EB and SRF05EB "Switch", SWITCH, "Light", LIGHT #endif }; static menu_t pMenu = { pMenuItems, N_ITEMS(pMenuItems) }; #ifdef SECURITY_CCM // Security key static uint8 key[]= { 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, }; #endif /*********************************************************************************** * LOCAL FUNCTIONS */ static void appLight(); static void appSwitch(); static uint8 appSelectMode(void); /*********************************************************************************** * @fn appLight * * @brief Application code for light application. 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Puts MCU in * endless loop to wait for commands from from switch * * @param basicRfConfig - file scope variable. Basic RF configuration data * pTxData - file scope variable. Pointer to buffer for TX * payload * appState - file scope variable. Holds application state * * @return none */ static void appSwitch() { // halLcdWriteLine(HAL_LCD_LINE_1, "Switch"); // halLcdWriteLine(HAL_LCD_LINE_2, "Joystick Push"); // halLcdWriteLine(HAL_LCD_LINE_3, "Send Command"); #ifdef ASSY_EXP4618_CC2420 halLcdClearLine(1); halLcdWriteSymbol(HAL_LCD_SYMBOL_TX, 1); #endif pTxData[0] = LIGHT_TOGGLE_CMD; // Initialize BasicRF basicRfConfig.myAddr = SWITCH_ADDR; if(basicRfInit(&basicRfConfig)==FAILED) { HAL_ASSERT(FALSE); } // Keep Receiver off when not needed to save power basicRfReceiveOff(); // Main loop while (TRUE) { // if( halJoystickPushed() ) { //bu qiujie tech if(halButtonPushed()==HAL_BUTTON_1){ basicRfSendPacket(LIGHT_ADDR, pTxData, APP_PAYLOAD_LENGTH); // Put MCU to sleep. 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The License limits your use, and you acknowledge, that the Software may not be modified, copied or distributed unless embedded on a Texas Instruments microcontroller or used solely and exclusively in conjunction with a Texas Instruments radio frequency transceiver, which is integrated into your product. Other than for the foregoing purpose, you may not use, reproduce, copy, prepare derivative works of, modify, distribute, perform, display or sell this Software and/or its documentation for any purpose. YOU FURTHER ACKNOWLEDGE AND AGREE THAT THE SOFTWARE AND DOCUMENTATION ARE PROVIDED 揂S IS?WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, TITLE, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL TEXAS INSTRUMENTS OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER CONTRACT, NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR OTHER LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE OR CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT OF SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES (INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS. Should you have any questions regarding your right to use this Software, contact Texas Instruments Incorporated at www.TI.com. ***********************************************************************************/ 这是SW1控制LED1的代码,我想改为SW2控制LED2的代码

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