Introduction to EC200U/A Evaluation Board
Supported Module List
Feature List
Basic Overview
The QuecPython_EC200U/A C4-P01 evaluation board is a compact and portable board designed specifically for QuecPython.
The main equipped modules are the EC200U/A series LTE Cat 1/LTE Cat 4 wireless communication modules.
The evaluation board has a USB Type-C interface, making it convenient for development. Developers only need a USB Type-C cable to easily use the evaluation board.
Additionally, the evaluation board is compatible with the expansion board of Raspberry Pi Zero, which can be directly used on the evaluation board.
Evaluation Board Resources
Function Description
The main component and interface placement of the evaluation board is shown in the following figure:
Evaluation board dimensions:
The main pin placement of the evaluation board is shown in the following figure:
Tip
The function multiplexing pins beginning with A/U in the figure indicate the functional difference of EC200A and EC200U series modules, that is, the function multiplexing pins beginning with U will take effect only when the module is EC200U. The function multiplexing pins starting with A takes effect only when the module is EC200A.
For more information about the evaluation board, please visit https://python.quectel.com/en/download.
Evaluation Board Configuration
The detailed assignment of the peripheral interfaces on the evaluation board is as follows:
| No. | Name | Model | Silkscreen | Comment |
|---|---|---|---|---|
| 1 | USB Type-C Interface | - | - | - |
| 2 | SIM Card Slot 1 | SMN-315-ARP7 | SIM1 | Nano-SIM |
| 3 | SIM Card Slot 2 | MUP-C7809-1 | SIM2 | - |
| 4 | SD Card Slot | TF-101A-P3 | SD | Before using the SD card, enable SD to provide power to the SD card in the 10-Pin Header. |
| 5 | USB Power Supply Switch | - | USB_ON/OFF | When the switch is normally closed, Type-C supplies power to the module and evaluation board, and USB can be connected normally. When the USB switch is normally open, Type-C supplies power only to the evaluation board. In this case, the module is not powered. |
| 6 | MIPI Interface | - | MIPI_DSI | When the main module is EC200U-XX, it supports MIPI LCD and is fully compatible with Raspberry Pi peripherals. |
| 7 | Camera Interface | - | - | The evaluation board supports customized SPI cameras with a maximum of 300,000 pixels. |
| 8 | Matrix Keyboard Interface | - | KO&KI | The matrix keyboard function is reserved. Users can customize the soldering or connection of the keyboard keys. No matrix keyboard on the board by default. |
| 9 | MIC&SPK Interface | AW8733A | +MIC-/-SPK+ | - |
| 10 | 40-Pin Header | - | - | Onboard 40-Pin header; For details, see the above figure and table. |
| 11 | 10-Pin Header | - | - | Onboard 10-Pin header; For details, see the above figure and table. |
| 12 | ADC Interface | - | ADC0_IN/ADC1_IN | ADC testing interface |
| 13 | PWK Botton | - | PWK | Turn-on button |
| 14 | RST Button | - | RST | Reset button |
| 15 | BOOT Button | - | BOOT | Firmware burning button |
| 16 | Antenna Interfaces | - | LTE DIV/WIFI/BT GNSS |
LTE antenna connector DIV/Wi-Fi/Bluetooth antenna connector GNSS antenna connector |
The evaluation board has 5 functional indication LEDs, as follows:
- P01: Module Pin 1, default as EC200A-XX PWM0.
- P05: Module Pin 5, NET_MODE indication LED.
- SCK1: SIM1 detection indication LED, lights up when SIM1 is inserted.
- SCK2: SIM2 detection indication LED, lights up when SIM2 is inserted. Default connection to Pin 128. EC200A-XX does not have SIM2, this LED can be ignored.
- PWR: Power indication LED.
The positions of the above indication LEDs refer to the silkscreen on the top of the evaluation board mentioned in the previous text (the side where the module is located is the top).
Evaluation Board Interfaces
This evaluation board provides 40 pins compatible with Raspberry Pi, as well as 10 pins with enabling function. The functions of the evaluation board are described as follows:
Pin Assignment of 10-Pin Header
| Header | No. | Silkscreen | Function |
|---|---|---|---|
| 10-Pin | 1 | PWK_AUTO | POWERKEY Auto turn on |
| 10-Pin | 2 | PWK_AUTO | GND Auto turn on |
| 10-Pin | 3 | VDD_EXT | 1.8 V Provide power externally when connected and test power consumption when disconnected |
| 10-Pin | 4 | VDD_EXT | VDD_EXT Provide power externally when connected and test power consumption when disconnected |
| 10-Pin | 5 | MODULE_EN | 3.8 V Connect DCDC to power the module |
| 10-Pin | 6 | MODULE_EN | 3.8 V Connect DCDC to power the module |
| 10-Pin | 7 | SD_EN | SD_EN Enable SD power supply |
| 10-Pin | 8 | SD_EN | 3.3 V Enable SD power supply |
| 10-Pin | 9 | GNSS_EN | 3.3 V Enable GNSS active power supply |
| 10-Pin | 10 | GNSS_EN | GNSS_EN Enable GNSS active power supply |
When testing power consumption, make sure to switch off the USB power supply switch (USB_ON/OFF) on the back of the evaluation board.
Singular-pin Assignment of 40-Pin Header
| Header | No. | Name | Function Multiplexing | Function |
|---|---|---|---|---|
| 40-Pin | 1 | 3V3 | - | 3.3 V output |
| 40-Pin | 3 | SDA | I2C0_SDA/GPIO35 | I2C0 serial data/General-purpose input/output |
| 40-Pin | 5 | SCL | I2C0_SCL | I2C0 serial clock |
| 40-Pin | 7 | P06 | GPIO46/A_PWM2 | General-purpose input/output/PWM2 output (When the module is EC200A) |
| 40-Pin | 9 | GND | - | Ground |
| 40-Pin | 11 | P64 | GPIO19 | General-purpose input/output |
| 40-Pin | 13 | P136 | GPIO7 | General-purpose input/output |
| 40-Pin | 15 | P03 | GPIO9 | General-purpose input/output |
| 40-Pin | 17 | 3V3 | - | 3.3 V output |
| 40-Pin | 19 | MO1 | SPI1_MOSI/GPIO3 | SPI1 master-out slave-in/General-purpose input/output |
| 40-Pin | 21 | MI1 | SPI1_MISO/GPIO4 | SPI1 master-in slave-out/General-purpose input/output |
| 40-Pin | 23 | CLK1 | SPI1_CLK/GPIO1 | SPI1 clock/General-purpose input/output |
| 40-Pin | 25 | GND | - | Ground |
| 40-Pin | 27 | P63 | GPIO44/A_UART1_TXD | General-purpose input/output/UART1 transmit (When the module is EC200A) |
| 40-Pin | 29 | P01 | GPIO28/A_PWM0 | General-purpose input/output/PWM0 output (When the module is EC200A) |
| 40-Pin | 31 | P02 | GPIO29 | General-purpose input/output |
| 40-Pin | 33 | P04 | GPIO30/A_PWM1 | General-purpose input/output/PWM1 output (When the module is EC200A) |
| 40-Pin | 35 | P39 | GPIO13/A_SPI0_MISO | General-purpose input/output/SPI0 master-in slave-out (When the module is EC200A) |
| 40-Pin | 37 | P134 | GPIO37 | General-purpose input/output |
| 40-Pin | 39 | GND | Ground |
Double-pin Assignment of 40-Pin Header
| Header | No. | Name | Function Multiplexing | Function |
|---|---|---|---|---|
| 40-Pin | 2 | 5V | - | 5 V output |
| 40-Pin | 4 | 5V | - | 5 V output |
| 40-Pin | 6 | GND | - | Ground |
| 40-Pin | 8 | TXD | UART2_TXD | UART2 transmit |
| 40-Pin | 10 | RXD | UART2_RXD | UART2 receive |
| 40-Pin | 12 | P37 | GPIO11/A_SPI0_CS | General-purpose input/output/SPI0 chip select (When the module is EC200A) |
| 40-Pin | 14 | GND | - | Ground |
| 40-Pin | 16 | P133 | GPIO8 | General-purpose input/output |
| 40-Pin | 18 | P65 | GPIO18 | General-purpose input/output |
| 40-Pin | 20 | GND | - | Ground |
| 40-Pin | 22 | P127 | GPIO22 | General-purpose input/output |
| 40-Pin | 24 | CS1 | SPI1_CS/GPIO2 | SPI1 chip select/General-purpose input/output |
| 40-Pin | 26 | P139 | GPIO20 | General-purpose input/output |
| 40-Pin | 28 | P66 | GPIO45/A_UART1_RXD | General-purpose input/output/UART1 receive (When the module is EC200A) |
| 40-Pin | 30 | GND | - | Ground |
| 40-Pin | 32 | P135 | GPIO6/U_PWM0 | General-purpose input/output/PWM0 output (When the module is EC200U) |
| 40-Pin | 34 | GND | - | Ground |
| 40-Pin | 36 | P62 | GPIO43 | General-purpose input/output |
| 40-Pin | 38 | P38 | GPIO12/A_SPI0_MOSI | General-purpose input/output/SPI0 master-out slave-in (When the module is EC200A) |
| 40-Pin | 40 | P40 | GPIO10/A_SPI0_CLK | General-purpose input/output/SPI0 clock (When the module is EC200A) |
Getting Started Preparation
First, you need a computer running Windows 10 or above.
- Step 1: Connect the Evaluation Board
Connect the evaluation board to the computer's USB port using a USB Type-C cable for power supply.
- Step 2: Turn on the Evaluation board
Long press the PWRKEY button to turn on the board. Before pressing the PWRKEY button, make sure the power supply voltage is stable. It is recommended to have a time interval of not less than 30 ms between powering up and pressing the PWRKEY button. If you want the board to power up and turn on automatically without the need for a turn-off function, you can directly short the two pins with PWK_AUTO silkscreen on the 10-Pin header.
After performing the above operations, wait for the power indication LED on the board to light up (the silkscreen on the board indicates the PWR LED, refer to the previous section on indication LEDs).
If the PWR LED lights up, the board has been successfully turned on.