8785645a95
The port currently implements support for GPIO, RTC, ExtInt and the WiFi subsystem. A small file system is available in the serial flash. A bootloader which makes OTA updates possible, is also part of this initial implementation.
82 lines
4.1 KiB
Markdown
82 lines
4.1 KiB
Markdown
# Build Instructions for the CC3200
|
|
|
|
Currently the CC3200 port of Micro Python builds under Linux and OSX and not under Windows.
|
|
|
|
The tool chain required for the build can be found at <https://launchpad.net/gcc-arm-embedded>.
|
|
|
|
In order to download the image to the CC3200 you will need the CCS_Uniflash tool from TI, which at this
|
|
moment is only available for Windows, so, you need Linux/OSX to build and Windows to flash the image.
|
|
|
|
## To build an image suitable for debugging:
|
|
|
|
In order to debug the port specific code, optimizations need to be disabled on the
|
|
port file (check the Makefile for specific details). You can use CCS from TI.
|
|
Use the CC3200.ccxml file supplied with this distribution for the debuuger configuration.
|
|
```bash
|
|
make BTARGET=application BTYPE=debug
|
|
```
|
|
## To build an image suitable to be flashed to the device:
|
|
```bash
|
|
make BTARGET=application BTYPE=release
|
|
```
|
|
## Building the bootloader
|
|
```bash
|
|
make BTARGET=bootloader BTYPE=release
|
|
```
|
|
|
|
## Flashing the CC3200
|
|
- Make sure the SOP2 jumper is in position.
|
|
- Open CCS_Uniflash and connect to the board (by default on port 22).
|
|
- Format the serial flash (select 1MB size in case of the CC3200-LAUNCHXL, leave the rest unchecked).
|
|
- Mark the following files for erasing: `/cert/ca.pem`, `/cert/client.pm`, `/cert/private.key` and `/tmp/pac.bin`.
|
|
- Add a new file with the name of /sys/factimg.bin, and select the correct URL to point to cc3200\build\<BOARD_NAME>\MCUIMG.BIN.
|
|
- Click "Program" to apply all changes.
|
|
- Flash the latest service pack (servicepack_1.0.0.1.2.bin) using the "Service Pack Update" button.
|
|
- Close CCS_Uniflash, remove the SOP2 jumper and reset the board.
|
|
|
|
## Playing with MicroPython and the CC3200:
|
|
|
|
Once the software is running, you have two options to access the MicroPython REPL:
|
|
|
|
- Through the UART.
|
|
**Connect to PORT 22, baud rate = 115200, parity = none, stop bits = 1**
|
|
- Through telnet.
|
|
* Connect to the network created by the board (as boots up in AP mode), **ssid = "micropy-wlan", key = "micropython"**
|
|
* You can also reinitialize the WLAN in station mode and connect to another AP, or in AP mode but with a
|
|
different ssid and/or key.
|
|
* Use your favourite telnet client with the following settings: **host = 192.168.1.1, port = 23.**
|
|
* Log in with **user = "micro" and password = "python"**
|
|
|
|
The board has a small file system of 64K located in the serial flash connected to the CC3200. SD cards are also supported, but
|
|
since the CC3200 LaunchXL doesn't come with an SD card socket installed, you will need to add one yourself. Any SD card breakout
|
|
board will do, as long as you connect it as described here: <http://processors.wiki.ti.com/index.php/CC32xx_SDHost_FatFS>
|
|
|
|
## Uploading scripts:
|
|
|
|
To upload your MicroPython scripts to the FTP server, open your FTP client of choice and connect to:
|
|
**ftp://192.168.1.1, user = "micro", password = "python"**
|
|
|
|
I have tested the FTP server with **FileZilla, FireFTP, FireFox, IE and Chrome,** other clients should work as well, but I am
|
|
not 100% sure of it.
|
|
|
|
## Upgrading the firmware Over The Air:
|
|
|
|
OTA software updates can be performed through the FTP server. After building a new MCUIMG.BIN in release mode, upload it to:
|
|
`/SFLASH/SYS/MCUIMG.BIN` it will take around 8s (The TI simplelink file system is quite slow because every file is mirrored for
|
|
safety). You won't see the file being stored inside `/SFLASH/SYS/` because it's actually saved bypassing FatFS, but rest assured that
|
|
the file was successfully transferred, and it has been signed with a MD5 checksum to verify its integrity.
|
|
Now, reset the MCU by pressing the switch on the board, or by typing:
|
|
|
|
```python
|
|
import pyb
|
|
pyb.hard_reset()
|
|
```
|
|
|
|
### Note regarding FileZilla:
|
|
|
|
Do not use the quick connect button, instead, open the site manager and create a new configuration. In the "General" tab make
|
|
sure that encryption is set to: "Only use plain FTP (insecure)". In the Transfer Settings tab limit the max number of connections
|
|
to one, otherwise FileZilla will try to open a second command connection when retrieving and saving files, and for simplicity and
|
|
to reduce code size, only one command and one data connections are possible.
|
|
|
|
|