AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
100 mhz clock mini zed8/8/2023 ![]() ![]() If UART is required for programming, USB± must be routed to a USB-to-serial conversion IC on the processor board.įor processors that support USB Host Mode. Differential serial data interface compliant to USB 2.0 specification. ![]() Pulling low puts processor into special boot mode. Open drain with pullup on processor board. Amplify the analog signal as needed for full 0-3.3V range 1/3 resistor divider is implemented on carrier board. Voltage above 1V will enable 3.3V power path.Ĭarrier board raw voltage over 3. Can be left NC.Ĭontrols the carrier board's main voltage regulator. Connect to pins maintaining an RTC during power loss. Connect to pins on processor board that require 5V for USB functionalityģV provided by external coin cell or mini battery. USB VIN compliant to USB 2.0 specification. In general, we don’t use UART2 for anything but RTCM correction data, so we recommend leaving the in/out protocols as RTCM. Additionally, but less often needed, the UART2 can be configured for NMEA output. ![]() If you plan to use Bluetooth for correction data (we found it to be easiest), we recommend you increase this port speed to 115200bps using u-center. Keep in mind our Bluetooth Mate defaults to 115200bps. The RTCM correction port (UART2) defaults to 38400bps serial but can be configured via software commands (checkout our Arduino library) or over USB using u-center. Note that RTCM3 data can also be sent over I 2C, UART1, SPI, or USB if desired. This pinout is compatible with our Bluetooth Mate and Serial Basic so you can send RTCM correction data from a cell phone or computer. While we label this as " Bluetooth" on the back of the board, you can still connect any transceiver or serial-to-USB converter to this port. In addition to the TXO2/RXI2 pins we have added an additional ‘RTCM Correction’ port where we arranged the pins to match the industry standard serial connection (aka the 'FTDI' pinout). By default, this port will automatically receive and parse incoming RTCM3 strings enabling RTK mode on the board. There is a second serial port (UART2) available on the ZED-F9P that is primarily used for RTCM3 correction data. Be sure the SPI jumper on the rear of the board is open. The classic serial pins are available on the ZED-F9P but are shared with the SPI pins. The only I 2C address for this and all u-Blox GPS products is 0x42, though each can have their address changed through software. This pin is available should you decide to power the board through the any of the PTH pins. GND - Of course, you'll need to connect the ground plane to your power source.Depending on your application, you could connect a regulated 3.3V through this port as well. Qwiic Connector - The Qwiic connector connects to 3.3V and GND to power any Qwiic-enabled devices.Otherwise, you could use this to power any peripherals attached to the board. 3V3 - If you decide to power the board through the 3.3V pin, you could connect a regulated 3.3V to this pin.The AP7361 voltage regulator will regulate the voltage down to 3.3V for the system voltage. VIN - If you decide to connect to the VIN pin, we recommend a voltage between 3.3V to 6.0V.The AP7361 voltage regulator will regulate the 5V from the USB port down to 3.3V for the system voltage. There are protection diodes connected to the voltage lines so you can connect two USB cables at the same time to power the board. USB C Connector - You can connect a USB Type C cable from your computer's USB port to the board through either of the USB Type C connectors labeled as u-center and processor.The square IC next to the USB C labeled as processor is where you will find the AP7361. Voltage is regulated down to 3.3V with the AP7361 voltage regulator. ![]()
0 Comments
Read More
Leave a Reply. |