LPC845 Capacitive Touch Kit User Manual User Manual for LPC845 Development Kit Rev. 1.
LPC845 Capacitive Touch Kit NXP Semiconductors User Manual Revision history Rev Date Description 1.0 20171115 First draft Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com UM11080 User Manual All information provided in this document is subject to legal disclaimers. Rev. 1.0 — 27 November 2017 © NXP B.V. 2017. All rights reserved.
LPC845 Capacitive Touch Kit NXP Semiconductors User Manual 1. Introduction The LPC845 Capacitive Touch Kit enables easy evaluation of the capacitive touch features of the LPC84x family of devices. The Kit can be used with a range of development tools, including the MCUXpresso IDE, IAR EWARM and Keil MDK. Fig 1. LPC845 Capacitive Touch Kit boards The LPC845 Capacitive Touch Kit board includes the following features: • Compatible with MCUXpresso IDE and other popular toolchains (incl.
LPC845 Capacitive Touch Kit NXP Semiconductors User Manual P4 D1 P6 J4 S1 RESET S3 ISP S2 WAKE J3 D9 D10 D8 P8 P5 P7 P1 P3 P2 P11 P9 P10 Fig 2. MP board layout (top silkscreen) Table 1 below shows the layout of the MP board, indicating location of jumpers, buttons, connectors/expansion options and MCU devices. Table 1. Jumpers and connectors Circuit reference Description Reference section J3 External SWD debug connector for LPC845 [4.
NXP Semiconductors LPC845 Capacitive Touch Kit User Manual Table 1. Jumpers and connectors Circuit reference Description Reference section P2 Power measurement point. Connect a voltmeter across P2 to measure voltage drop across a 2.43 ohm resistor connected in-line with the supply to the LPC845 device. [6] P4 External supply voltage connection. An external power supply may be used by connecting it to P4; pin 1 should be connected to pin 1 and ground to pin 2. A 5V nominal supply should be used.
NXP Semiconductors LPC845 Capacitive Touch Kit User Manual 3. Getting Started The firmware for the on-board debug probe and Windows 7/8 driver for the virtual com (VCOM) port are available from http://nxp.com/demoboard/om40004 under the Software and Tools tab (look under “Software” download types). If using Window 7 or 8, you will need to install the VCOM driver by running the installer program (see installation notes included in the package.
NXP Semiconductors LPC845 Capacitive Touch Kit User Manual 4. In the “Import project(s) from file system...” dialog box that opens, click “Browse...” in the Project Archive (from zip) section, and select the LPC84x Code Bundle zip file downloaded in step (1). Click “Next >” on the “Import project(s) from file system...” dialog to continue. 5. You will see several projects listed in the Code Bundle; click “Finish” to import them all. 6.
LPC845 Capacitive Touch Kit NXP Semiconductors User Manual The CMSIS, DISK and COMM LEDs are connected to the LPC11U35 device. The behavior of the LEDs will vary depending on firmware used, typically the CMSIS LED will blink when debug communication is occurring, and the COMM LED will blink when data is being transferred over the VCOMM port. The board design includes pads for an external debug probe to be connected to the LPC11U35 (connector J5).
LPC845 Capacitive Touch Kit NXP Semiconductors User Manual VCC PIO0_15 PIO0_17 PIO0_19 PIO0_21 PIO0_23 PIO1_9 / CAPT_YH PIO0_30/ACMP_I5 P1_6-CAPT_X7 P1_4-CAPT_X5 P1_2-CAPT_X3 P1_0-CAPT_X1 VCC P9 25 23 21 19 17 15 13 11 9 7 5 3 1 26 24 22 20 18 16 14 12 10 8 6 4 2 PIO0_16 PIO0_18 PIO0_20 PIO0_22 P1_8-CAPT_Y_LOW P1_7-CAPT_X8 P1_5-CAPT_X6 P1_3-CAPT_X4 P1_1-CAPT_X2 P0_31-CAPT_X0 HEADER 2x13 RA Fig 3. MP Sensor Board Connector (P9) 6.
LPC845 Capacitive Touch Kit NXP Semiconductors User Manual 7.2 Wake button The Wake button (S2) is for general purpose use by LPC845 applications. It is connected via a 100 ohm resistor to a 100K ohm pull-up to 3.3V, and to the LPC845 PIO0_4 pin. This pin can wake the LPC845 from deep power-down. 7.3 User LEDs Three users LEDs are provided on the board, one blue, one green and one red. The anodes of the LEDs are connected together, then through solder jumper SJ1 to the 3.3V regulator output.
LPC845 Capacitive Touch Kit NXP Semiconductors User Manual 8. Legal information 8.1 Disclaimers Limited warranty and liability — Information in this document is believed to be accurate and reliable. However, NXP Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information.
NXP Semiconductors LPC845 Capacitive Touch Kit User Manual 9. Contents 1 2 3 3.1 3.2 3.3 4 4.1 5 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . Driver installation and (optional) debugger firmware update . . . . . . . . . . . . . . . . . . . . . . . . Using the board with MCUXpresso IDE . . . . . . Using MP with 3rd Party IDEs . . . . . . . . . . . .
