TPL5010EVM

User's Guide SNAU173 – January 2015 TPL5010 Evaluation Module This user's guide provides the setup instructions, configuration, and operation of the TPL5010 evaluation module (EVM). Also included are the printed-circuit board (PCB) layouts, schematic, and the bill of materials (BOM). 1 2 3 4 5 6 Contents Introduction ................................................................................................................... 2 Setup .......................................................................................................................... 3 2.1 Jumpers and Connectors .......................................................................................... 3 2.2 Battery Requirements .............................................................................................. 5 2.3 TPL5010EVM Configuration ....................................................................................... 5 Operation .................................................................................................................... 11 3.1 Supply Current Measurement ................................................................................... 11 Board Layout ................................................................................................................ 14 Schematic ................................................................................................................... 16 Bill of Materials ............................................................................................................. 17 List of Figures ................................................................................................................ 2 ........................................................................................................... 3 J1 Jumper Setting ........................................................................................................... 3 J2 Jumper Setting ........................................................................................................... 4 I_SEL Jumper Setting ....................................................................................................... 4 R_SEL Jumper Setting ...................................................................................................... 4 Jumpers Configuration – EVM Standalone Without Microcontroller .................................................. 6 Jumpers Configuration – EVM With Microcontroller .................................................................... 7 Jumpers Configuration – EVM With LaunchPad ........................................................................ 8 Current Measurement Setup – TPL5010 Only ......................................................................... 11 Current Measurement Setup – TPL5010 During the Reading of the Resistance .................................. 12 Current Measurement Setup – TPL5010 With Microcontroller ....................................................... 13 Top Layer.................................................................................................................... 14 Bottom Layer ................................................................................................................ 15 TPL5010EVM Schematic.................................................................................................. 16 1 TPL5010EVM 2 J1 Jumper Setting 3 4 5 6 7 8 9 10 11 12 13 14 15 List of Tables 1 Device and Package Configurations ...................................................................................... 2 2 Input/Output Connectors Description...................................................................................... 3 3 Jumpers Description ......................................................................................................... 3 4 Switches and Selectors Description ....................................................................................... 4 5 Test Points Description 6 ..................................................................................................... 4 TPL5010EVM Bill of Materials ........................................................................................... 17 LaunchPad is a trademark of Texas Instruments. DURACELL is a registered trademark of The Gillette Company. SNAU173 – January 2015 Submit Documentation Feedback TPL5010 Evaluation Module Copyright © 2015, Texas Instruments Incorporated 1 Introduction 1 www.ti.com Introduction I_SEL J1/J3 J4/J2 REXT Q1 J1 R_SEL U1 J2 Q2 REXT1 REXT2 IO MANUAL_DRV DONE Figure 1. TPL5010EVM TI's TPL5010EVM evaluation module (EVM) allows a designer to configure the timer intervals of the TPL5010 and measure its very low current consumption. Moreover, the TPL5010EVM is ready to be connected to the LaunchPad™ of the MSP430F5529 in order to test its watchdog and timer features. The EVM has an onboard battery holder (coin battery) to supply the TPL5010 and the microcontroller, if connected. The EVM contains one TPL5010 (see Table 1). Table 1. Device and Package Configurations 2 Device IC Package U1 TPL5010DDC SOT23-6 TPL5010 Evaluation Module SNAU173 – January 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Setup www.ti.com 2 Setup Section 2.1 describes the jumpers and connectors on the EVM and Section 2.3 describes how to properly connect, set up, and use the TPL5010EVM. See Figure 1 for locations of the top layer jumpers and switches. 2.1 Jumpers and Connectors Table 2 through Table 5 list the input/output connectors description, jumpers description, switches and selectors description, and the test points description. Table 2. Input/Output Connectors Description Name Layer Description J1/J3 Bottom 2 × 10 pin receptacle to plug the TPL5010EVM into the MSP430F5529 LaunchPad J4/J2 Bottom 2 × 10 pin receptacle to plug the TPL5010EVM into the MSP430F5529 LaunchPad RST Bottom 2-pin receptacle to plug the TPL5010EVM into the MSP430F5529 LaunchPad VCC Bottom 2-pin receptacle to plug the TPL5010EVM into the MSP430F5529 LaunchPad IO Top 4-pin header connector to bring out RSTn, WAKE, DONE, and GND signals IO.1 GND Ground IO.2 DONE DONE signal from external microcontroller IO.3 WAKE WAKE signal to external microcontroller IO.4 RSTn RSTn signal to external microcontroller Table 3. Jumpers Description Name Layer J1 Top Description J1.5–J1.3 shorted, the RSTn pin of the TPL5010 is connected to the gate of Q1 MOSFET. J1.3–J1.1 shorted, the gate of Q1 MOSFET is connected to VDD (MOSFET OFF). J1 J1 J1 RSTn Connected to Q1 Q1 OFF RSTn Connected to IO Figure 2. J1 Jumper Setting J1.6–J1.4 shorted, the WAKE pin of the TPL5010 is connected to the gate of Q2 MOSFET. J1.4–J1.2 shorted, the gate of Q2 MOSFET is connected to VDD (MOSFET OFF). J1 J1 J1 WAKE Connected to Q2 Q2 OFF WAKE Connected to IO Figure 3. J1 Jumper Setting SNAU173 – January 2015 Submit Documentation Feedback TPL5010 Evaluation Module Copyright © 2015, Texas Instruments Incorporated 3 Setup www.ti.com Table 3. Jumpers Description (continued) Name Layer J2 Top Description In short configuration, the DONE pin of the TPL5010 is connected to the S2 switch with a pull-down resistor. J2 J2 DONE Connected to S2 DONE Connected to IO Figure 4. J2 Jumper Setting I_SEL Top In open configuration allows the measurement of the current consumption of the TPL5010. I_SEL Normal Operation I_SEL TPL5010 Current Measurement Figure 5. I_SEL Jumper Setting R_SEL Top Pin1-2 in short configuration, the variable resistance is used to set the timer interval. Pin2-3 in short configuration, the fix resistance is used to set the timer interval. R_SEL R_SEL Variable Resistance Fix Resistance Figure 6. R_SEL Jumper Setting Table 4. Switches and Selectors Description Name Layer Description S_ON_OFF Bottom In ON position turns ON the EVM, in OFF position turns OFF the EVM S1 Top When pushed, the SPST switch generates a DONE pulse S2 Top When pushed, the SPDT ON/Momentary switch generates a Manual reset pulse Table 5. Test Points Description 4 Name Layer Description GND Top Test point of the ground, connect the GND of the power supplies V_BATT Top Test point to monitor battery voltage AUX_VDD Top Test point to connect external supply voltage in alternative to the coin cell battery TPL5010 Evaluation Module SNAU173 – January 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Setup www.ti.com 2.2 Battery Requirements In • • • • case the EVM is battery powered, the battery must meet the following requirements: Battery type: CR2032 UL-certified battery Voltage: 3 V Minimum capacity: 220 mAh Minimum discharge rate: N/A mA NOTE: Only insert DURACELL® 2032 Lithium battery type CR2032, or equivalent. 2.3 TPL5010EVM Configuration The evaluation board can work standalone or plugged into the MSP430F5529 LaunchPad. 2.3.1 Setting the Time Interval Period Set the Time interval period by tuning the variable resistance (the trimmer can generate resistances in the range between 1 kΩ and 200 kΩ). To 1. 2. 3. tune the value of the resistance: Connect a DMM between pin 1 of R_SEL and GND. Turn the screw on the top of the trimmer until you reach the desired value. Disconnect the DMM at the end of the operation. Alternatively, set the DRV pulse interval with the fix resistances (R_EXT1 = 500 Ω, R_EXT2 = 0 Ω). If required, replace the resistances with customized ones. See Figure 1 for locations of the resistances REXT1 and REXT2. SNAU173 – January 2015 Submit Documentation Feedback TPL5010 Evaluation Module Copyright © 2015, Texas Instruments Incorporated 5 Setup www.ti.com 2.3.2 EVM Standalone Without Microcontroller The following settings are provided to use the EVM standalone, without a microcontroller: • Put the S_ON_OFF selector in the OFF position. • Set the mode of operation through the MODE header (see Table 3). • Insert a CR2032 coin cell battery in the battery holder (BT), alternatively, connect a voltage source between the AUX_VDD and GND test points. • Configure jumper J1 (RSTn connected to Q1, WAKE connected to Q2) and J2 (DONE connected to S2), as explained in Table 3. NOTE: Do not connect the coin cell battery and the voltage source to supply the evaluation board at same time. • Put the S_ON_OFF selector in the ON position, or turn on the external voltage source if it is used instead of the coin cell battery. The DONE and WAKE signals can be monitored at the IO connector (pin 2 and 3, respectively). S_ON_OFF CR2032 I_SEL J1 R_SEL J2 xx xx xx x IO x xx xx xx xx xx WAKE DONE Figure 7. Jumpers Configuration – EVM Standalone Without Microcontroller 6 TPL5010 Evaluation Module SNAU173 – January 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Setup www.ti.com 2.3.3 EVM With Microcontroller The following settings are provided to use the EVM with a microcontroller: • Put the S_ON_OFF selector in the OFF position. • Set the mode of operation through the MODE header (see Table 3). • Connect the microcontroller to the IO header in order to manage the I/O signal of the design under test (DUT). • Supply the microcontroller, connecting its supply pin to the AUX_VDD test point and the ground to the GND pin of the IO header. • Insert a CR2032 coin cell battery in the battery holder (BT), alternatively, connect a voltage source between the AUX_VDD and GND test points. • Configure the jumper J1 (RSTn connected to IO, WAKE connected to IO) and J2 (DONE connected to IO), as explained in Table 3. NOTE: Do not connect the coin cell battery and the voltage source to supply the evaluation board at same time. Do not use the switch S2 (DONE), in this configuration the DONE switch is connected to a digital output pin of the microcontroller. • Put the S_ON_OFF selector in the ON position, or turn on the external voltage source if it is used instead of the coin cell battery. S_ON_OFF CR2032 I_SEL J1 R_SEL VDD J2 µC GND GPIO GPIO RST RSTn WAKE DONE GND IO Figure 8. Jumpers Configuration – EVM With Microcontroller SNAU173 – January 2015 Submit Documentation Feedback TPL5010 Evaluation Module Copyright © 2015, Texas Instruments Incorporated 7 Setup www.ti.com 2.3.4 EVM With LaunchPad Load the code from this section into the MSP430F5529 of the LaunchPad. Refer to MSP430 LaunchPad (MSP-EXP430F5529) Wiki for more details. • Put the S_ON_OFF selector in the OFF position. • Set the mode of operation through the MODE header (see Table 3). • Remove jumpers VCC and RST of the LaunchPad. • Plug the EVM into the LaunchPad (MSP430F5529), according to the following table: TPL5010EVM J1/J3 J4/J2 • • MSP430 LaunchPad J1.1 VDD_µC pin 4 GND pin 2 GND J1/J3 J4/J2 pin 1 3V3 pin 4 GND pin 2 GND P2.0 pin 4 WAKE pin 4 pin 10 RSTn pin 10 RST pin 18 DONE pin 18 P2.3 VCC 3V3 RST SBW RST Insert a CR2032 coin cell battery in the battery holder (BT), alternatively, connect a voltage source between the AUX_VDD and GND test points. Configure the jumper J1 (RSTn connected to Q1, WAKE connected to Q2) and J2 (DONE connected to IO), as explained in Table 3. NOTE: Do not connect the coin cell battery and the voltage source to supply the evaluation board at the same time. Do not use the switch S2 (DONE), in this configuration, the DONE switch is connected to a digital output pin of the microcontroller. • Put the S_ON_OFF selector in ON position, or turn on the external voltage source if it is used instead of the coin cell battery. S_ON_OFF CR2032 I_SEL RST VCC J1/J3 J4/J2 J1 R_SEL J2 Figure 9. Jumpers Configuration – EVM With LaunchPad 8 TPL5010 Evaluation Module SNAU173 – January 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated Setup www.ti.com Example code Once loaded into the MSP430 of the LaunchPad, the code presented in this section performs the following features: • At power on, the green LED present on the LaunchPad is turned on and turned off. • When the MSP430 receives a RSTn, the red LED is toggled 5 times, then the green LED is turned ON and OFF and the MSP430 sends a DONE signal to the TPL5010. • When the MSP430 receives a WAKE pulse, the green LED is turned ON and OFF and the MSP430 sends a DONE signal to the TPL5010. #include void main(void) { WDTCTL = WDTPW | WDTHOLD; // Stop watchdog timer P1DIR |= BIT0; P2DIR |= BIT3; P4DIR |= BIT7; // Set P1.0 to output direction // Set P2.3 to output direction // Set P4.7 to output direction P1OUT &= ~BIT0; P2OUT &= ~BIT3; P4OUT &= ~BIT7; // Set P1.0 RED LED OFF // Set P2.3 DONE Low // Set P4.7 GREEN LED OFF P2IES &= ~BIT0; P2IFG &= ~BIT0; P2IE |= BIT0; // P2.0 Lo/Hi edge // P2.0 IFG Cleared // P2.0 Interrupt Enabled SFRRPCR |= SYSNMIIES | SYSNMI; SFRIE1 |= NMIIE; // // // // P4OUT |= BIT7; __delay_cycles(500000); P4OUT &= ~BIT7; // Set P4.7 GREEN LED ON // Set Delay // Set P4.7 GREEN LED OFF P2OUT |= BIT3; __delay_cycles(100); P2OUT &= ~BIT3; // Done High // Set Delay // Done Low Select NMI function for the RST/NMI pin, interrupt on falling edge (pull-up R on RST/NMI is already enabled after PUC) Set NMI pin interrupt enable __bis_SR_register(LPM4_bits + GIE); // Enter LPM4 } // Port 2 interrupt service routine #pragma vector=PORT2_VECTOR __interrupt void Port_2(void) { volatile unsigned int i; P4OUT |= BIT7; i = 10000; do i--; while(i != 0); P4OUT &= ~BIT7; // GREEN LED ON // SW Delay P2OUT |= BIT3; __delay_cycles(100); P2OUT &= ~BIT3; // Done High // Set Delay // Done Low P2IES &= ~BIT0; P2IFG &= ~BIT0; P2IE |= BIT0; // P2.0 Lo/Hi edge // P2.0 IFG Cleared // P2.0 Interrupt Enabled // Set P4.7 GREEN LED OFF SNAU173 – January 2015 Submit Documentation Feedback TPL5010 Evaluation Module Copyright © 2015, Texas Instruments Incorporated 9 Setup www.ti.com } // User NMI interrupt service routine #pragma vector=UNMI_VECTOR __interrupt void UNMI_ISR (void) { int n=0; // Efficiently decode the User NMI interrupt source switch (__even_in_range(SYSUNIV, SYSUNIV_SYSBUSIV)) { case SYSUNIV_NMIIFG : { for(n=0; n