| README.md (12eeba7a6d68258cefe4fbe44ca9f7f194f6d608) | README.md (d00ab9e3a0094f929407efbf0610465286ad22de) |
|---|---|
| 1# 2 3In this chapter, we first explain how Bluetooth chipsets are connected physically and then provide information about popular Bluetooth chipset and their use with BTstack. 4 5## HCI Interface 6 7The communication between a Host (a computer or an MCU) and a Host Controller (the actual Bluetooth chipset) follows the Host Controller Interface (HCI), see {@fig:HostChipsetConnection}. HCI defines how commands, events, asynchronous and synchronous data packets are exchanged. Asynchronous packets (ACL) are used for data transfer, while synchronous packets (SCO) are used for Voice with the Headset and the Hands-Free Profiles. 8 --- 50 unchanged lines hidden (view full) --- 59Broadcom UART | Dual mode | H4, H5 | Rarely | Partially (2) | No | Maybe (3) | 43438: Yes | | bcm | Max UART baudrate 2 mbps 60Broadcom USB Dongles | Dual mode | USB | Yes | Yes | No | No | BCM20702: No | | bcm | 61CSR UART | Dual mode | H4, H5, BCSP | Rarely | Partially (2) | No | No | CSR8811: No | | csr | 62CSR USB Dongles | Dual mode | USB | Mostly | Yes | No | No | CSR8510: No | | csr | 63Cypress CYW20704/7 | Dual mode | H4, H5, USB | Don't know | Partially (2) | Yes | Yes | Yes | Yes | bcm | 64Cypress CYW20819 | Dual mode | H4, H5, USB | Don't know | Partially (2) | Yes | Yes | Yes | Don't know | bcm | Keep CTS high during power cycle 65Cypress CYW43xxx | Dual mode + Wifi | H4, H5 | Don't know | Partially (2) | Don't know | No | Don't know | Don't know | bcm | Bluetooth + Wifi Combo Controller 66Cypress PSoC 4 | LE | H4 | Don't know | n.a. | Yes | Don't know | n.a. | Don't know | | HCI Firmware part of PSoC Creator kits examples | 1# 2 3In this chapter, we first explain how Bluetooth chipsets are connected physically and then provide information about popular Bluetooth chipset and their use with BTstack. 4 5## HCI Interface 6 7The communication between a Host (a computer or an MCU) and a Host Controller (the actual Bluetooth chipset) follows the Host Controller Interface (HCI), see {@fig:HostChipsetConnection}. HCI defines how commands, events, asynchronous and synchronous data packets are exchanged. Asynchronous packets (ACL) are used for data transfer, while synchronous packets (SCO) are used for Voice with the Headset and the Hands-Free Profiles. 8 --- 50 unchanged lines hidden (view full) --- 59Broadcom UART | Dual mode | H4, H5 | Rarely | Partially (2) | No | Maybe (3) | 43438: Yes | | bcm | Max UART baudrate 2 mbps 60Broadcom USB Dongles | Dual mode | USB | Yes | Yes | No | No | BCM20702: No | | bcm | 61CSR UART | Dual mode | H4, H5, BCSP | Rarely | Partially (2) | No | No | CSR8811: No | | csr | 62CSR USB Dongles | Dual mode | USB | Mostly | Yes | No | No | CSR8510: No | | csr | 63Cypress CYW20704/7 | Dual mode | H4, H5, USB | Don't know | Partially (2) | Yes | Yes | Yes | Yes | bcm | 64Cypress CYW20819 | Dual mode | H4, H5, USB | Don't know | Partially (2) | Yes | Yes | Yes | Don't know | bcm | Keep CTS high during power cycle 65Cypress CYW43xxx | Dual mode + Wifi | H4, H5 | Don't know | Partially (2) | Don't know | No | Don't know | Don't know | bcm | Bluetooth + Wifi Combo Controller 66Cypress PSoC 4 | LE | H4 | Don't know | n.a. | Yes | Don't know | n.a. | Don't know | | HCI Firmware part of PSoC Creator kits examples |
| 67Dialog DA14581 | LE | H4, SPI | No | n.a. | No | No | n.a. | Don't know | da14581 | Official HCI firmware included in BTstack 68Dialog DA14585 | LE | H4, SPI | No | n.a. | Yes | Yes | n.a. | Yes | da14581 | Official HCI firmware included in BTstack 69Dialog DA1469x | LE | H4, SPI | No | n.a. | Yes | Yes | n.a. | Yes | da14581 | HCI Firmware part of DA1469x SDK | 67Dialog DA14581 | LE | H4, SPI | No | n.a. | No | No | n.a. | Don't know | da145xx | Official HCI firmware included in BTstack 68Dialog DA14585 | LE | H4, SPI | No | n.a. | Yes | Yes | n.a. | Yes | da145xx | Official HCI firmware included in BTstack 69Dialog DA1469x | LE | H4, SPI | No | n.a. | Yes | Yes | n.a. | Yes | da145xx | HCI Firmware part of DA1469x SDK |
| 70Espressif ESP32 | Dual mode + Wifi | VHCI | Yes | Yes | Yes | Yes | Yes | Don't know | | SoC with Bluetooth and Wifi 71EM 9301 | LE | SPI, H4 | No | n.a. | No | No | n.a. | Don't know | em9301 | Custom HCI SPI implementation 72EM 9304 | LE | SPI, H4 | Yes | n.a. | Yes | Yes | n.a. | Don't know | em9301 | Custom HCI SPI implementation 73Intel Dual Wireless 3165, 8260, 8265 | Dual mode | USB | Yes | Probably | Don't know | Don't know | Don't know | Don't know | intel | Firmware size: 400 kB 74Nordic nRF | LE | H4 | Fixed Random | n.a. | Yes | Yes | n.a. | Yes | | Requires HCI firmware 75STM STLC2500D | Classic | H4 | No | Don't know | n.a | n.a. | No | n.a. | stlc2500d | Custom deep sleep management not supported 76Renesas RX23W | LE | H4 | No | n.a. | Yes | Yes | n.a . | Don't know | | HCI Firmware part of BTTS 77Realtek RTL8822CS | Dual mode + Wifi | H5 | Yes | Yes | Don't know | Don't know | Don't know | Don't know | | Requires initial firmware + config --- 85 unchanged lines hidden (view full) --- 163The DA14585 uses the same firmware upload mechanism as the 581 model. In addition, it supports both Data Length Extension as well as multiple concurrent roles. 164 165The newer DA1469x uses an external flash. The DA 1469x SDK contains a HCI firmware that can be compiled and downloaded into flash using the SmartSnippets Studio. 166 167**BD Addr** fixed to 80:EA:CA:00:00:01. No command in HCI firmware to set it differently. Random addresses could be used instead. 168 169**Baud rate**: The baud rate is fixed at 115200 with the provided firmware. A higher baud rate could be achieved by re-compiling the HCI firmware. 170 | 70Espressif ESP32 | Dual mode + Wifi | VHCI | Yes | Yes | Yes | Yes | Yes | Don't know | | SoC with Bluetooth and Wifi 71EM 9301 | LE | SPI, H4 | No | n.a. | No | No | n.a. | Don't know | em9301 | Custom HCI SPI implementation 72EM 9304 | LE | SPI, H4 | Yes | n.a. | Yes | Yes | n.a. | Don't know | em9301 | Custom HCI SPI implementation 73Intel Dual Wireless 3165, 8260, 8265 | Dual mode | USB | Yes | Probably | Don't know | Don't know | Don't know | Don't know | intel | Firmware size: 400 kB 74Nordic nRF | LE | H4 | Fixed Random | n.a. | Yes | Yes | n.a. | Yes | | Requires HCI firmware 75STM STLC2500D | Classic | H4 | No | Don't know | n.a | n.a. | No | n.a. | stlc2500d | Custom deep sleep management not supported 76Renesas RX23W | LE | H4 | No | n.a. | Yes | Yes | n.a . | Don't know | | HCI Firmware part of BTTS 77Realtek RTL8822CS | Dual mode + Wifi | H5 | Yes | Yes | Don't know | Don't know | Don't know | Don't know | | Requires initial firmware + config --- 85 unchanged lines hidden (view full) --- 163The DA14585 uses the same firmware upload mechanism as the 581 model. In addition, it supports both Data Length Extension as well as multiple concurrent roles. 164 165The newer DA1469x uses an external flash. The DA 1469x SDK contains a HCI firmware that can be compiled and downloaded into flash using the SmartSnippets Studio. 166 167**BD Addr** fixed to 80:EA:CA:00:00:01. No command in HCI firmware to set it differently. Random addresses could be used instead. 168 169**Baud rate**: The baud rate is fixed at 115200 with the provided firmware. A higher baud rate could be achieved by re-compiling the HCI firmware. 170 |
| 171**BTstack integration**: *btstack_chipset_da14581.c* contains the code to download the provided HCI firmware into the SRAM of the DA1458x. After that, it can be used as any other HCI chipset. No special support needed for DA1469x after compiling and flashing the HCI firmware. | 171**BTstack integration**: *btstack_chipset_da145xx.c* contains the code to download the provided HCI firmware into the SRAM of the DA145xx. After that, it can be used as any other HCI chipset. No special support needed for DA1469x after compiling and flashing the HCI firmware. |
| 172 173 174## Espressif ESP32 175 176The ESP32 is a SoC with a built-in Dual mode Bluetooth and Wifi radio. The HCI Controller is implemented in software and accessed via a so called Virtual HCI (VHCI) interface. 177It supports both LE Data Length Extensions (DLE) as well as multiple LE roles. Since ESP-IDF v4.3, SCO-over-HCI is usable for HSP/HFP. 178 179 --- 162 unchanged lines hidden --- | 172 173 174## Espressif ESP32 175 176The ESP32 is a SoC with a built-in Dual mode Bluetooth and Wifi radio. The HCI Controller is implemented in software and accessed via a so called Virtual HCI (VHCI) interface. 177It supports both LE Data Length Extensions (DLE) as well as multiple LE roles. Since ESP-IDF v4.3, SCO-over-HCI is usable for HSP/HFP. 178 179 --- 162 unchanged lines hidden --- |