mirror/mongoose
1
0
Fork 0
mirror of https://github.com/cesanta/mongoose.git synced 2024-12-03 00:59:02 +08:00
Code Issues Actions 6 Packages Projects Releases Wiki Activity
5f93f7162f
mongoose/examples/STM32F4_CC3100
History
Alexander Alashkin 5f93f7162f Add STM32F4/CC3100 example & Co 
PUBLISHED_FROM=7f805d89dcb795c9b3ee637ef1dbdcfcf3323469
2016-09-05 15:06:21 +00:00
..
main.c Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
Makefile Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
Makefile.build Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
README.md Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
sdk.version Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
startup_stm32f429xx.s Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
startup_utils.c Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
stm32f4xx_hal_msp.h Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
stm32f429xx.ld Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00
user_params.h Add STM32F4/CC3100 example & Co 2016-09-05 15:06:21 +00:00

README.md

STM32F4 example project

This example shows how to use mongoose on STM32 boards. To run it you will need:

Wiring scheme

By default, example uses SPI4 for communication with CC3100 and UART1 for the debug output. All parameters are described in file stm32f4xx_hal_msp.h, they can be changed to use another SPI and/or UART

To use default scheme connect (CC3100 -> STM32-DISCO) connect:

DO  -> PE5
DIN -> PE6
CLK -> PE2
CS  -> PB12
IRQ -> PA0
HIB -> PB0

Building firmware

Change user_params.h, put correct WiFi SSID and password there, also change MQTT_BROKER_ADDRESS to the real broker address.

make in mongoose/STM32F4_CC3100 will download required docker image and make firmware. Result will be in STM32F4_CC3100/out folder.

Uploading firmare

Uploading firmware method depends on how you connected STM32 board to your computer. If it is connected via USB ST-LINK connected it is appears as a flash drive and in order to upload firmware just copy out/example.bin to that drive.

Running

Compile two additional samples: mqtt_broker and mqtt_client and run them in different terminals. Press reset (or repower) STM board. The board will connect to broker and will start to publish its uptime in /stuff channel. mqtt_client is subscribed on this channel as well, so it should start to print

Got incoming message /stuff: Current tick: 99000
Forwarding to /test
Got incoming message /stuff: Current tick: 100120
Forwarding to /test
Got incoming message /stuff: Current tick: 101250
Forwarding to /test
...

If you connect UART to serial port monitor (pin PA9 or ST-LINK device, like /dev/ttyACM0) you should see device output:

**** Hello ****
Initializing CC3100 on SPI4
Starting WiFi connect
Done, waiting for events
Connected to WiFi
Got IP
Connected to 192.168.1.108:1883
Connected to broker
Subscribing to /test
Subscription acknowledged
Publishing message with tick=1
Got incoming message /test: Current tick: 4487
Publishing message with tick=2
Got incoming message /test: Current tick: 5597
Publishing message with tick=3
Got incoming message /test: Current tick: 6717
...

This output looks like this because the device sends messages Current tick: .... into /stuff channel, mqtt_client receives all messages in this channel and sends them to /test channel. But the device is subscribed to this channel so, it receives it back.