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121 lines
3.9 KiB
Markdown
121 lines
3.9 KiB
Markdown
# Alternative flashing methods
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### Via Arduino/ESP8266
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Flashing firmware via Arduino is implemented using the project https://github.com/wavesoft/CCLib
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**But with minor improvements!!!**
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[AndrewLinden](https://github.com/AndrewLinden) described that he was able to flash CC2531 using CCLib [with comments](https://github.com/wavesoft/CCLib/issues/19).
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As described [I made a fork of the CCLib library with minor changes](https://github.com/kirovilya/CCLib) for flashing firmware via Arduino:
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* Timeouts of operations
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* After opening the port (I have in Windows 7) Arduino reboots and, accordingly, does not respond to requests - made a 3 seconds pause (found somewhere in internet).
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* The port speed is reduced to 9600, because at another speed leaving communication errors:
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`ERROR: Could not read from the serial port!`
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Flashing proccess:
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1. Download and unpack the archive with the library https://github.com/kirovilya/CCLib.
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2. Flashing Arduino sketch via Arduino IDE
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CCLib\Arduino\CCLib\Examples\CCLib_proxy\CCLib_proxy.ino
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**If flashing via esp8266 (wemos d1 mini), you need change connection (p. 5) and Pinout configuration in Arduino/CCLib/Examples/CCLib_proxy/CCLib_proxy.ino:**
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```
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int CC_RST = 5;
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int CC_DC = 4;
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int CC_DD_I = 14;
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int CC_DD_O = 12;
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```
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3. Install Python 2.7 or later (tested with python 2.7.13), if not installed
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4. Install pyserial 3.0.1, if not installed
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`pip install -r CCLib\Python\requirements.txt`
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or
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`pip install pyserial==3.0.1`
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5. Connect the contacts as described https://github.com/kirovilya/CCLib#1-prepare-your-arduino-board
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**But in my case, I connected completely without resistors, combined the contacts CC_DD_I and CC_DD_O together and connected to the DD pin of the DEBUG connector!**
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I connected only 3 specified contacts and GND. During the firmware, the stick and Arduino must be connected to the USB.
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6. After that, try to get information about the chip - if it works, then the connection is correct (example for COM9 port - Arduino port):
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```
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C:\Projects\CCLib\Python>python cc_info.py -p COM9
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INFO: Found a CC2531 chip on COM9
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Chip information:
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Chip ID : 0xb524
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Flash size : 256 Kb
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Page size : 2 Kb
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SRAM size : 8 Kb
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USB : Yes
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Device information:
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IEEE Address : 00124b0014aa
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PC : 0000
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Debug status:
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[ ] CHIP_ERASE_BUSY
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[ ] PCON_IDLE
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[X] CPU_HALTED
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[ ] PM_ACTIVE
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[ ] HALT_STATUS
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[ ] DEBUG_LOCKED
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[X] OSCILLATOR_STABLE
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[ ] STACK_OVERFLOW
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Debug config:
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[ ] SOFT_POWER_MODE
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[ ] TIMERS_OFF
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[X] DMA_PAUSE
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[X] TIMER_SUSPEND
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```
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[Another example of connection on MacOS](https://github.com/wavesoft/CCLib/issues/22#issuecomment-384452424)
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7. If everything is successful, then download [modified firmware for flashing via Arduino](https://github.com/kirovilya/files/blob/master/CC2531ZNP-Pro-Secure_LinkKeyJoin_mod.hex)
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8. Start the flashing firmware (it takes a long time, about 2-3 hours):
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```
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C:\Projects\ZigBee>python cc_write_flash.py -e -p COM9 --in=CC2531ZNP-Pro-Secure_LinkKeyJoin_mod.hex
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INFO: Found a CC2531 chip on COM9
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Chip information:
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Chip ID : 0xb524
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Flash size : 256 Kb
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Page size : 2 Kb
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SRAM size : 8 Kb
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USB : Yes
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Sections in CC2531ZNP-Pro-Secure_LinkKeyJoin_mod.hex:
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Addr. Size
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-------- -------------
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0x0000 8176 B
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0x1ff6 10 B
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0x3fff0 1 B
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0x2000 239616 B
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This is going to ERASE and REPROGRAM the chip. Are you sure? <y/N>: y
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Flashing:
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- Chip erase...
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- Flashing 4 memory blocks...
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-> 0x0000 : 8176 bytes
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Progress 100%... OK
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-> 0x1ff6 : 10 bytes
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Progress 100%... OK
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-> 0x3fff0 : 1 bytes
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Progress 100%... OK
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-> 0x2000 : 239616 bytes
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Progress 100%... OK
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Completed
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``` |