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JetHome Zigbee module ZB3CX v.1 (CC2538+CC2592)
The module is based on a reference design from TI CC2538-CC2592EM-RD using a TI wireless MCU CC2538
The module is designed to work as part of automation devices (controllers, end devices) and, depending on the software installed on the module, can perform various functions.
Supported protocols:
- Zigbee;
- 6LoWPAN.
Distinctive features of the module - the ability to connect via USB interface and increased transmitter power.
Specifications
- Microcontroller ARM® Cortex®-M3 32 MHz;
- RAM 32 KB;
- Flash 512 KB;
- Optional CC2592 +22dBm output power amplifier;
- Supply voltage +3.3V;
- USB interface for connecting a module with the possibility of power supply from a source of + 5V;
- Overall dimensions of the module: 28 x 18 mm.
Module pin assignments
The module is made in the format of a unified JetHome wireless module 28 x 18 mm in size with contacts located along the perimeter of the module.
Module pin assignment (top view):
| Module pin | Microcontroller assignment/pin |
|---|---|
| 1 | JTAG TCK |
| 2 | JTAG TMS |
| 3 | JTAG TDO |
| 4 | JTAG TDI |
| 5 | PB4 |
| 6 | PB3 |
| 7 | PB2 |
| 8 | PB1 |
| 9 | GND |
| 10 | USB D+ |
| 11 | USB D |
| 12 | +5V |
| 13 | +3.3V |
| 14 | GND |
| 15 | RESET |
| 16 | PA0(RX) |
| 17 | PA1(TX) |
| 18 | PD0(CTS) |
| 19 | PD1(RTS) |
| 20 | PA7 |
| 21 | GND |
| 22 | ANTENNA |
| 23 | GND |
- Pin 20 (PA7) - used to enter bootloader mode (depends on software)
- Pins 5..8 (PB1..PB4) - depending on the software, they can be used to connect LEDs or for other purposes.
Module Software
See documentation for supported firmware: Software for modules based on TI CC2538 chip
Module firmware procedure
The cc2538-bsl utility can be used to flash the module (see Flashing TI CC2538/CC2652 modules and sticks using the cc2538-bsl utility)
Before flashing, the module must be switched to bootloader mode (serial bootloader). To do this, you need to reset the module by holding a low logic level at the input PA7 of the microcontroller (pin 20 of the module). The module is switched back to the operating mode when the module is turned on/rebooted at a high logic level at pin PA7 (pin 20 of the module).
This is true only for firmware recommended for installation (see the “Module software” section).