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Zigbee CCLib Flashing

Flash using CClib~

To simplify this procedure, a ready to use fork of the needed firmware files is available.

Flash CCLib on an ESP82xx Device~

Flashing the CC2530 normally requires a CC_DEBUGGER. Using an ESP82xx device like a Wemos D1 Mini is a lower cost alternative.

If you are using a Wemos D1 Mini or NodeMCU, just plug the microUSB port. Vcc (3.3V), GND, Tx (GPIO1), and Rx (GPIO3) are connected via the microUSB port. Be sure that you are using a USB data cable.

For ESP devices that do not have a microUSB connector, make the following connections:


ESP
Device
Serial
Programming
Adapter
Vcc Vcc
GND GND
GPIO0 GND
GPIO1 Rx
GPIO3 Tx

Follow the usual ESP82xx flashing process - you are just using CCLib_proxy.ino.bin instead of Tasmota.

Once the firmware upload completes, retain the serial interface connections (3.3V, GND, Tx, Rx). These will be used later for flashing the CC2530.

C. Flash a DL-20 Zigbee module The DL-20 Zigbee module has a 5-pin 1.27mm pitch unpopulated header with 0.6mm througholes. For flashing any of the Zigbee modules, you need the following connections:

ESP
Pin
D1 Mini
NodeMCU
CC2530
Pin
DL-20 J2
Pin Location
GPIO12 D6 CC_DD
(A.K.A. P2_1 ('P21') or Debug Data)
5
GPIO4 D2 CC_DC
(A.K.A. P2_2 ('P22') or Debug Clock)
4
Vcc 3.3v Vcc 3
GPIO5 D1 CC_RST 2
GND GND GND 1

DL-20 Flashing Jumpers
Insert alternating male Dupont jumpers; one jumper on one side, the next one on other side. This allows the pins to provide the friction themselves to maintain contact and remain firmly in place. You only need DD, DC, and RST (a fourth jumper is shown which is used to keep the RST jumper in place). Vcc and GND are available on the main serial interface pins.

D. Upload the firmware to the CC2530
The CC2530 requires Z-Stack_Home_1.2, of type Default (not Source Routing). For convenience, ready to use firmware files are provided. Select the right one for your hardware: CC2530, CC2530 + CC2591 or CC2530 + CC2592.

These Python scripts require Python 2.7.
1) Ensure that you have Python 2.7 installed

2) Install pyserial 3.0.1:

pip install pyserial==3.0.1

3) Check for connectivity before flashing:

python Python/cc_info.py -p <serial_port>

where <serial_port> is the serial port for the ESP82xx device. e.g. /dev/cu.usbserial-xxxx or COM7

Example of result:

INFO: Found a CC2530 chip on /dev/cu.usbserial-xxxx

Chip information:
      Chip ID : 0xa524
   Flash size : 16 Kb
    Page size : 2 Kb
    SRAM size : 1 Kb
          USB : No

Device information:
 IEEE Address : 000000000000
           PC : 0000

Debug status:
 [ ] CHIP_ERASE_BUSY
 [ ] PCON_IDLE
 [X] CPU_HALTED
 [ ] PM_ACTIVE
 [ ] HALT_STATUS
 [X] DEBUG_LOCKED
 [X] OSCILLATOR_STABLE
 [ ] STACK_OVERFLOW

Debug config:
 [ ] SOFT_POWER_MODE
 [ ] TIMERS_OFF
 [ ] DMA_PAUSE
 [ ] TIMER_SUSPEND

If your CC2530 is DEBUG_LOCKED, then the flash size will be incorrectly reported as 16kB. Dont worry flashing the Z-Stack firmware will work and reset the DEBUG_LOCKED bit.

In some situation flashing fails with a error message flash have not enough space. If this happens do the following:

python Python/cc_read_flash.py -p <serial_port> -o x.hex
python Python/cc_write_flash.py --erase -p <serial_port> -i x.hex

Recheck for connectivity and the correct flash size by repeating step #3.

4) Flash the Z-Stack firmware using the following command:

Flashing the CC2530 takes about 20 minutes

python Python/cc_write_flash.py -e -p <serial_port> -i Bin/CC2530_DEFAULT_20190608_CC2530ZNP-Prod.hex
INFO: Found a CC2530 chip on /dev/cu.usbserial-xxxx

Chip information:
 Chip ID : 0xa524
Flash size : 256 Kb
Page size : 2 Kb
SRAM size : 8 Kb
     USB : No
Sections in Bin/CC2530_DEFAULT_20190608_CC2530ZNP-Prod.hex:

Addr.    Size
-------- -------------
0x0000   8176 B 
0x1ff6   10 B 
0x3fff0   1 B 
0x2000   239616 B 

This is going to ERASE and REPROGRAM the chip. Are you sure? <y/N>:  y

Flashing:
- Chip erase...
- Flashing 4 memory blocks...
-> 0x0000 : 8176 bytes 
Progress 100%... OK
-> 0x1ff6 : 10 bytes 
Progress 100%... OK
-> 0x3fff0 : 1 bytes 
Progress 100%... OK
-> 0x2000 : 239616 bytes 
Progress 100%... OK

Completed

If you don't see any on screen activity that flashing has begun (i.e., progress percentages increasing) within a couple minutes, then abort the command, cycle power on the ESP82xx, and start this step over.

Described in greater detail in this blog post.