[ST NUCLEO-WBA52CG] 4-Create a BLE project using STM32CUBEMX

manhuami2007

[ST NUCLEO-WBA52CG] 4-Create a BLE project using STM32CUBEMX [Copy link]

To create a BLE project using STM32WBA52CG, you need to use the middle layer STM32_WPAN of STM32CUBEMX. WPAN is the abbreviation of Wireless Personal Area Network.

To enable this middle layer, you need to enable many peripherals first, namely:

• Temperature sensor channel of ADC4: used for calibration of PHY
• CRC: Verify BLE data transmission
• RAMCFG: Used to dynamically modify RAM configuration
• ICHACHE: Used to improve the efficiency of accessing instructions from memory
• RNG: Generate random numbers
• RF: Radio frequency output
• RTC: used for automatic wake-up in low power mode.
  If you need to output DEBUG information, you also need to enable the serial port:
• USART1
• GPDMA1

1. The sampling time of ADC4 can be set longer, for example, to 814.5 cycles, to improve the accuracy of ADC sampling.
2. ICHACHE is set to "1-way (dircet mapped cache)"
3. Activate RAMCFG for SRAM1

For other settings, please refer to the official sample settings.

After activating STM32_WPAN, you need to set up BLE.

1. Select the BLE mode, such as server, so that we can set the development board through the mobile phone

2. The settings of broadcast parameters and broadcast content are set in "BLE Advertising"
3. Set the number of services
   
4. Set the service's characteristic values, permissions, and other information according to your requirements
   
5. Some settings of BLE
6. Generate project settings
   1. The stack should be set larger, the heap is set to 0x3000 and the stack size is 0x1000
   2. Set the initialization function. Some of them cannot be set to static because they will be called elsewhere.

At this point, you can generate the relevant project. You can see that there is still a lot of content that needs to be set, and the usability is relatively poor.

wangerxian

I have always believed that the design of this type of wireless communication chip is quite special.

manhuami2007

wangerxian posted on 2023-8-24 16:44 I have always believed that the design of this kind of wireless communication chip is quite special.

It's quite complicated to use

wangerxian

manhuami2007 posted on 2023-8-24 17:40 It is quite complicated to use

There are also many main Bluetooth configurations.

lugl4313820

It is very convenient to build a project with stm32cubemax. I wonder if its monitoring protocol stack is easy to learn?

manhuami2007

lugl4313820 posted on 2023-8-25 07:25 It is very convenient to build a project with stm32cubemax. I wonder if its monitoring protocol stack is easy to learn?

It's a bit complicated, and involves a lot of files. But it's similar to other brands of Bluetooth protocol stacks, all are event-driven, and have some similarities.

lugl4313820

manhuami2007 posted on 2023-8-25 07:59 It is a bit complicated and involves many files. However, it is similar to the Bluetooth protocol stack of other brands, both are event-driven, and there are similarities.

The original poster can give a detailed introduction here. Nowadays, dental monitoring is very easy to use in wearable devices.