1*cc528b9dSMatthias Ringwald# BTstack Port for POSIX Systems with NXP/Marvel H4 Bluetooth Controller 2*cc528b9dSMatthias Ringwald 3*cc528b9dSMatthias Ringwald## Configuration 4*cc528b9dSMatthias RingwaldMost Bluetooth Bluetooth Controllers connected via UART/H4 require some special configuration, e.g. to set the UART baud rate, and/or require firmware patches during startup. 5*cc528b9dSMatthias RingwaldIn this port, we've show how a NXP/Marvell Controller can be configured for use with BTstack. It's unclear if the required firmware file for older Controllers, 6*cc528b9dSMatthias Ringwalde.g. 88W8997, can be detected during the firmware upload. This port selects the firmware for NXP 88W8997. 7*cc528b9dSMatthias RingwaldFor newer Controllers, e.g. IW416 or IW612, the firmware can be selected automatically. 8*cc528b9dSMatthias Ringwald 9*cc528b9dSMatthias Ringwald## Compilation 10*cc528b9dSMatthias Ringwald 11*cc528b9dSMatthias RingwaldBTstack's posix-h4-nxp port does not have additional dependencies. You can directly run cmake and then your default build system. E.g. with Ninja: 12*cc528b9dSMatthias Ringwald 13*cc528b9dSMatthias Ringwald mkdir build 14*cc528b9dSMatthias Ringwald cd build 15*cc528b9dSMatthias Ringwald cmake -G Ninja .. 16*cc528b9dSMatthias Ringwald ninja 17*cc528b9dSMatthias Ringwald 18*cc528b9dSMatthias Ringwald## Running the examples 19*cc528b9dSMatthias Ringwald 20*cc528b9dSMatthias RingwaldPlease reset the Controller first. On start, BTstack prints the path to the packet log. 21*cc528b9dSMatthias Ringwald 22*cc528b9dSMatthias Ringwald $ ./gatt_counter 23*cc528b9dSMatthias Ringwald Packet Log: /tmp/hci_dump.pklg 24*cc528b9dSMatthias Ringwald BTstack counter 0001 25*cc528b9dSMatthias Ringwald BTstack up and running on 00:1A:7D:DA:71:13. 26*cc528b9dSMatthias Ringwald 27*cc528b9dSMatthias Ringwald## ToDo 28*cc528b9dSMatthias Ringwald- increase baud rate for firmware upload 29*cc528b9dSMatthias Ringwald- skip firmware upload if firmware already present 30*cc528b9dSMatthias Ringwald- increase baud rate for application 31*cc528b9dSMatthias Ringwald- send SCO audio 32