2023-04-06 09:35:18 +00:00
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# BTstack Port for POSIX Systems with modern Infineon (CYW) H4 Bluetooth Controller
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## Configuration
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Newer Infineon Airoc (tm) Controllers like the CYW5557x series accept PatchRAM upload only in a so-called
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'auto-baud mode' which is entered by asserting CTS (low) and starting/resetting the controller via BT_REG_EN.
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2023-04-20 09:21:43 +00:00
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This port currently only supports the CYW5557x Controllers.
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2023-04-06 09:35:18 +00:00
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## Compilation
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BTstack's posix-h4-bcm port does not have additional dependencies. You can directly run cmake and then your default
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build system. E.g. with Ninja:
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mkdir build
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cd build
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cmake -G Ninja ..
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ninja
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## Running the examples
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On start, BTstack opens the serial port, which asserts CTS, and requests you to reset the Controller with a countdown.
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$ ./gatt_counter
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Packet Log: /tmp/hci_dump.pklg
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Phase 1: Download firmware
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Please reset Bluetooth Controller, e.g. via RESET button. Firmware download starts in:
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3
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2
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1
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Firmware download started
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2023-04-20 09:21:43 +00:00
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Local version information:
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- HCI Version 0x000a
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- HCI Revision 0x0b73
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- LMP Version 0x000a
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- LMP Subversion 0x2257
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- Manufacturer 0x0009
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2023-04-06 09:35:18 +00:00
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Phase 2: Main app
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BTstack up and running at 55:56:0A:0A:76:93
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2023-04-20 09:21:43 +00:00
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...
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2023-04-06 09:35:18 +00:00
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## ToDo
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2023-04-20 09:21:43 +00:00
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- select PatchRAM file based on HCI Read Local Version Information
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