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Troubleshooting section; more checked targets #28

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9b7d37c
note about resistors; mark more chips as supported
ReDetection Jan 16, 2019
c5ecac0
more troubleshooting options
ReDetection Jan 25, 2019
6ee1ea8
this section is misleading. explained in the troubleshooting instead
ReDetection Jan 25, 2019
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26 changes: 10 additions & 16 deletions README.md
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Expand Up @@ -65,20 +65,6 @@ Device information:
PC : 002f
```

However, if you see something like this, something is wrong and you should probably check your wiring and/or reset the arduino board or the CC board.

```
Chip information:
Chip ID : 0x4113
Flash size : 16 Kb
SRAM size : 1 Kb
USB : No

Device information:
IEEE Address : 000000000000
PC : 0000
```

### 3. Using the software

The python utilities provide a straightforward interface for reading/writing to your CCxxxx chip:
Expand Down Expand Up @@ -109,6 +95,14 @@ _NOTE:_ If you don't want to use the `--port` parameter with every command you c
~$ export CC_SERIAL=/dev/ttyS0
```

## Troubleshooting

You wired everything up, you double-checked that your pin assignments are correct and you are still not able to flash your device? Then try the following:
* Try using 50k/100k resistors instead of 100k/200k. [#27](https://github.com/wavesoft/CCLib/issues/27)
* Try to check if voltage at expected level, e.g. if you disconnect `CC_DD_O` from the Arduino and connect to a 5V power rail instead, you should read about 3.3V at `DD`. If not – probably you have wrong wiring or bad resistors.
* If `cc_info.py` tool reports `DEBUG_LOCKED` flag, you will have to erase chip during flashing. Put the `--erase` option. [#29](https://github.com/wavesoft/CCLib/issues/29)
* If flashing begins but stops with a message `Progress 0%... ERROR: Could not read from the serial port!` – try to lower down the baudrate to 9600: in the Arduino file around [line 94](https://github.com/wavesoft/CCLib/blob/13ebd0878a8a691d1336b96609eb44d535021964/Arduino/CCLib/Examples/CCLib_proxy/CCLib_proxy.ino#L94), in the Python [ccproxy.py around line 85](https://github.com/wavesoft/CCLib/blob/13ebd0878a8a691d1336b96609eb44d535021964/Python/cclib/ccproxy.py#L85) replace to `self.ser = serial.Serial(port, baudrate=9600, timeout=3.0, write_timeout=3.0)`.

## Compatibility Table

In order to flash a CCxxxx chip there is a need to invoke CPU instructions, which makes the process cpu-dependant. This means that this code cannot be reused off-the-shelf for other CCxxxx chips. The following table lists the chips reported to work (or could work) with this library:
Expand All @@ -130,7 +124,7 @@ In order to flash a CCxxxx chip there is a need to invoke CPU instructions, whic
<td>CC2531</td>
<td><strong>0xb5</strong>..</td>
<td>CC254X</td>
<td>:large_orange_diamond: Looking for testers</td>
<td>:white_check_mark: Works with 50k/100k resistors</td>
</tr>
<tr>
<td>CC2533</td>
Expand All @@ -148,7 +142,7 @@ In order to flash a CCxxxx chip there is a need to invoke CPU instructions, whic
<td>CC2541</td>
<td><strong>0x41</strong>..</td>
<td>CC254X</td>
<td>:large_orange_diamond: Looking for testers</td>
<td>:white_check_mark: Works with 50k/100k resistors</td>
</tr>
<tr>
<td>CS2510</td>
Expand Down