The signal pulse duration should at least 10 ms, the input voltage should not exceed 0,1 V and the load-carrying capacity should be not less than 0. All the voltage values are measured relative to bus GND common. The red dot indicates the last correct coordinate, sent by device. All the configuration can also be done manually. The application has an automatic identification mode for the NMEA channel serial port number. The receiver is based on Mediatek MT chipset. To do this open the Settings menu tab see see Fig.
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The right area of the window indicates messages, sent by application. The feature to connect and disconnect external battery on the fly allows developer to evaluate battery power impact on the design of the device. The board can also be disconnected while the application is running, and then reconnected again.
Made settings not saved. Components arrangement on the evaluation board Microcircuits, modules: Data exchange port quick search window. In this case you have to disconnect the board from the computer and ask the system administrator to configure the Windows. Coordinates are shown as point set. Two ways to define used satellite group exist — with parameter save and without parameter save.
To activate it click the Run button see Fig. The key features for this board design are the switchable power supply from the USB bus and the option to attach external battery supply at any time, which is not usually allowed in the finished devices. Module designed with using components inside with a common idea to do device smallest as small that allowed in fact to reach a dream target with form-factor 13mmx15mm.
The Application Operation After the Run button has been clicked, the application reads and analyses the input data, and displays a number of parameters: When the application is run for the first time in Fig. MLs module signal switch X3 signals switch is a set of pins to select connections that attach the module with electronic components of a evaluation board, with external devices, or left unconnected. Max height is 18, m 59, ft.
Besides, you can reset and restart the module.
Operating Manual – Navigation Receiver ML8088s Evaluation Board
To ensure the application operation you ml8808s to install. Receiver module has an excellent sensitivity, low power consumption and short cold start time. The m8088s — requiring no external components for basic operation — provides geographic coordinates and velocity plus time via RS or USB ports.
Not recommended to use backup battery with voltage, exceeding the main power supply voltage level, which results in the current overconsumption from the backup battery during the circuit operation.
Operating Manual – Navigation Receiver MLs Evaluation Board
After the ml8088ss board power supply is switched on, the LED HL1 orange-red light indicating the MLs module power supply should light up: The receiver board operation mostly matches the description of operation in the typical connection circuit. Symbol of satellite with solid fill means the satellite is estimated for navigation solution and the satellite shown as colored ring means it is not estimated.
This is necessary for the correct selection of the built-in microcontroller mode operation operation or the firmware write to build-in ml88088s memoryfor the firmware activation and write of its activation status to the register memory.
The purpose of the switch pins is shown in Table 2. The module contains a stage noise suppression system. This setting not require application restart. Antenna active or passive is connected to 21 RF IN pin. It is recommended to provide Vbat voltage permanently to keep internal clock and memory operational. Full description of messages, commands and configuration parameters is available on demand.
The application main window appearance is presented in Fig. This tab defines which satellite group is used for positioning solution.
The signal pulse duration should at least 10 ms, the input voltage should not exceed 0,1 V and the load-carrying capacity should be not less than 0. This tab defines message set, sent by device. The receiver allows applying specially prepared information for the primary search for satellite signals; this information is stored in the Receiver memory, which allows reducing a cold start time, and, more importantly, make a cold start when mo8088s weak signals from satellites.
The red dot indicates the last correct coordinate, sent by device.