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README.mdH A D25-Apr-20252.7 KiB4625

btstack_aes128_wiced.cH A D25-Apr-20252.7 KiB7120

btstack_config.hH A D25-Apr-20251.6 KiB5539

create_examples.pyH A D25-Apr-20254.6 KiB14396

main.cH A D25-Apr-20255.9 KiB17583

wiced-h5.mkH A D25-Apr-20252.8 KiB8064

README.md

1# BTstack port for WICED platform using H5 transport and Broadcom/Cypress Bluetooth chipsets.
2
3# BTstack port for WICED platform
4
5Tested with:
6- WICED SDK 3.4-6.2.1
7- [RedBear Duo](https://redbear.cc/product/wifi-ble/redbear-duo.html): Please install [RedBear WICED Add-On](https://github.com/redbear/WICED-SDK)
8- [Inventek Systems ISM4334x](https://www.inventeksys.com/products-page/wifi-modules/serial-wifi/ism43341-m4g-l44-cu-embedded-serial-to-wifi-ble-nfc-module/) - Please contact Inventek Systems for WICED platform files
9- [Inventek Systems ISM4343](https://www.inventeksys.com/wifi/wifi-modules/ism4343-wmb-l151/) (BCM43438 A1) - Please contact Inventek Systems for WICED platform files
10
11To integrate BTstack into the WICED SDK, please move the BTstack project into WICED-SDK-6.2.1/libraries.
12
13Then create projects for BTstack examples in WICED/apps/btstack by running:
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15	./create_examples.py
16
17Now, the BTstack examples can be build from the WICED root in the same way as other examples, e.g.:
18
19	./make btstack.spp_and_le_counter-RB_DUO
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21to build the SPP-and-LE-Counter example for the RedBear Duo (or use ISM43340_M4G_L44 / ISM4343_WBM_L151 for the Inventek Systems devices).
22
23See WICED documentation about how to upload the firmware.
24
25It should work with all WICED platforms that contain a Broadcom Bluetooth chipset.
26
27The maximal baud rate is currenty limited to 1 mbps.
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29The port uses the generated WIFI address plus 1 as Bluetooth MAC address.
30It persists the LE Device DB and Classic Link Keys via the DCT mechanism.
31
32All examples that rovide a GATT Server use the GATT DB in the .gatt file. Therefore you need to run ./update_gatt_db.sh in the apps/btstack/$(EXAMPLE) folder after modifying the .gatt file.
33
34
35## Additional notes on the H5 port
36
37If the CTR/RTS hardware control lines of the Bluetooth Controller is connected to your MCU, we recommend using the wiced-h4 port instead.
38If they are not connected, H5 is required to provide a reliable connection including retransmissions in both directions.
39
40There are a few oddities so far that had to be worked around in H5 mode:
41
42- It does not seem possible to upload the FW Mini Driver a.k.a. patchram a.k.a. init script via H5. BTstack uses btstack_chipset_bcm_download_firmware.c to upload the FW Mini Driver via a minimal H4 implementation, before starting up in H5 mode. BCM/CYP chipsets are able to switch to H5.
43
44- With the AP6212A on the RedBear Duo and the FW Mini Driver from WICED-SDK-3.5.2/libraries/drivers/bluetooth/firmware/43438A1/26MHz/bt_firmware_image.c, the HCI LE Encrypt command to perform an AES128 encryption hangs in H5 (but works in H4). See [Bug Report in Community Forum](https://community.cypress.com/thread/8424) As a work around, BTstack was configured to use a CPU implementation of AES128 (#define HAVE_AES128).
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