Evaluate: MAX32625, MAX32626 MAX32625/MAX32626 Evaluation Kits General Description Benefits and Features The MAX32625/MAX32626 evaluation kit (EV kit) pro- Easily Load and Debug Code Using the Supplied vides a convenient platform for evaluating the capabilities Olimex ARM-USB-TINY-H JTAG Debugger Connected of the MAX32625/MAX32626 microcontroller. The EV Through a Standard 20-Pin ARM JTAG Header kit also provides a complete, functional system ideal for Selectable Power Sources for PMIC Include USB developing and debugging applications. Power Through the CN1 or CN2 Connector, Optional External Battery Through J2 Connector, or Bench EV Kit Contents Supply Through Test Points TP8 and TP9 EV kit board with a MAX32625 or MAX32626 micro- Selectable Power Source for On-Board Peripherals controller (Switches, LEDs, OLED Display, SPI Flash, Olimex ARM-USB-TINY-H JTAG debugger with JTAG Bluetooth LE Transceiver) ribbon cable (for connecting from debugger to EV kit Headers for Accessing the ICs I/O Pins and Analog header J1) and USB standard A-to-B cable (for con- Front End (AFE) Input Signals necting from PC to debugger) USB Micro-B Connection to the ICs USB Device Standard-A to Micro-B USB cable (for connecting Controller from PC or standalone USB power supply to EV USB Micro-B Connection to USB-UART Bridge kit USB Micro-B connector CN2) allows connection Selectable Between the ICs Internal UART 0 and from PC USB host to the ICs USB device controller UART 1 peripheral On-Board Bluetooth 4.0 BLE Transceiver with Chip Standard-A to Micro-B USB cable (for connecting PC Antenna to EV kit USB connector CN1) allows virtual COM port interface to the ICs UART 0 or UART 1 through General-Purpose Pushbutton Switches and Indicator a USB/UART bridge LEDs (All Connected to GPIOs) for User I/O MAX32625/MAX32626 EV Kit Quick Start Guide Prototyping Matrix (0.1in Grid) with Integrated Power Rails for Customer Circuitry Hex Keys for the Socket (MAX32626 EV Kit Only) MAX32625 EV Kit Ordering Information appears at end of data sheet. The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Maxim is under license. 19-8616 Rev 1 11/16MAX32625/MAX32626 Evaluate: MAX32625, MAX32626 Evaluation Kits Pushbuttons Getting Started Pushbuttons (normally open) SW1, SW2, and SW3 can 1) While observing safe ESD practices, carefully re- be used to generate a logic 0 signal on their correspond move the EV kit board out of its packaging. Quickly ing GPIO port pins. Firmware defines the action taken on inspect the board to ensure that no damage occurred during shipment. Jumpers/shunts were preinstalled switch closure. prior to testing and packaging. By default, the USB- Pushbutton SW4 provides a global POR reset function for UART bridge is the source of power for the EV kit the IC by asserting the RSTN input. board. See Table 1 and Figure 3 for the default set- Pushbutton SW5 controls the PFN1 input of the PMIC. tings and descriptions. The function of the PFN1 input is configurable but is preset 2) The IC is preprogrammed with a demo program. to reset the PMIC when depressed for at least 12 seconds. To power up the board and run the demo, simply connect the Micro-USB cable to the Micro-USB jack USB found at the top left of the EV kit PCB. The jack is The IC provides an integrated USB2.0 full-speed interface labeled CN1. The other end of the Micro-USB cable (12Mbps). This interface is accessed through the Micro- can be connected either to a computer or to a USB USB type-B connector, CN2. wall charger to get +5V power. USB-UART Bridge 3) Once power is applied, the demo initiates. The demo The EV kit board provides a USB-to-UART bridge chip, displays text and graphics on the OLED display, FTDI FT230X. This bridge eliminates the requirement flashes LED0LED3, and outputs data to UART0. for a physical RS-232 COM port. Instead, the ICs UART 4) Do not connect any of the additional USB cables or access is through the Micro-USB type-B connector, Olimex JTAG adapter until after the tool chain/drivers CN1. Virtual COM port drivers and guides for installing are installed. Windows drivers are available at the FTDI Chip website. If the demo runs as expected, the next step is to down- Default parameters are 115,200 baud, 8 bits, no parity, 1 load and run the installer. Refer to the EV kits quick start stop bit, no flow control. guide. The installer is a small application that allows the The USB-to-UART bridge can be connected to UART 0 user to select which components to download and install or UART 1 of the IC with jumpers JP10 (RX), JP12 (TX), including tools, drivers, and documentation. A description JP13 (CTS), and JP14 (RTS). This interface is the default of each component and the hard drive size required for power source for the EV kit. each can be seen by clicking on each component. LEDs Detailed Description The EV kit board has four LEDs with series current- This section describes each major function or component limiting resistors. LEDs D1 (red), D2 (green), D3 (red), on the EV kit. This EV kit is general purpose in nature and and D4 (green) are connected to the ICs GPIO pins P3.0, provides many user-selectable options that are described in P3.1, P3.2, and P3.3, respectively. LED GPIOs must be the following sections. Each jumper setting is described and configured as open-drain due to 3.3V LED source volt- its default setting illustrated. ages. A LED illuminates when the appropriate GPIO pin is driven low. Board Power The EV kits main power supply input is +5V, made avail- Bluetooth Low-Energy (BLE) Controller able through Micro-USB type-B connector CN1 or CN2. The EV kit board has a low-power Bluetooth controller, The board is default jumpered for power to be provided EM9301. Communication with the IC is through SPIM2. by CN1. This particular SPI port was selected due to the additional flow control signals that it features. The EM9301 controller Current Monitoring is Bluetooth specification V4.0 compliant. Refer to the EM Jumpers JP15, JP16, JP18, and JP19 provide conve- Microelectronic EM9301 data sheet for additional details. nient current monitoring points for VDD12 (JP15), VRTC (JP18), VDDB (JP19), and VDD18 (JP16). VDDIO (JP27) and VDDIOH (JP28) current can be monitored using these source selection jumpers. Windows is a registered trademark and service mark of Microsoft Corp Maxim Integrated 2 www.maximintegrated.com