SPP profile in bluedroid missing?

[loboris]

Are you shure you are using the components directory from the zip file?
To remove low level logging the file hci_dump.c in src directory has to be modified.
The modified file is is included in the zip, and you can get it directly hci_dump.c link

Here is my output with log level set to warning (esp_log_level_set("[BT_STACK]", 2);):

Code: Select all

HEAP after BT: 192224
BTstack: execute run loop
BTstack: up and running.
RFCOMM channel 1 requested for 06:84:16:21:13:18
RFCOMM channel open succeeded. New RFCOMM Channel ID 1, max frame size 990
BTstack counter 0001
BTstack counter 0002
BTstack counter 0003
BTstack counter 0004
BTstack counter 0005
BTstack counter 0006
BTstack counter 0007
BTstack counter 0008
BTstack counter 0009
BTstack counter 0010
BTstack counter 0011
BTstack counter 0012
BTstack counter 0013
BTstack counter 0014
BTstack counter 0015
BTstack counter 0016
BTstack counter 0017
BTstack counter 0018
BTstack counter 0019
BTstack counter 0020
BTstack counter 0021
BTstack counter 0022
BTstack counter 0023
BTstack counter 0024
BTstack counter 0025
BTstack counter 0026
BTstack counter 0027
RCV: 'Hi from Android'
BTstack counter 0028
BTstack counter 0029
BTstack counter 0030
BTstack counter 0031
BTstack counter 0032
BTstack counter 0033
BTstack counter 0034
BTstack counter 0035
BTstack counter 0036
BTstack counter 0037
BTstack counter 0038
BTstack counter 0039
BTstack counter 0040
BTstack counter 0041
BTstack counter 0042
BTstack counter 0043
BTstack counter 0044
BTstack counter 0045
RCV: 'It works'
BTstack counter 0046
BTstack counter 0047
BTstack counter 0048
BTstack counter 0049
BTstack counter 0050
BTstack counter 0051
BTstack counter 0052
BTstack counter 0053
BTstack counter 0054
BTstack counter 0055
BTstack counter 0056
BTstack counter 0057
BTstack counter 0058
BTstack counter 0059
BTstack counter 0060
BTstack counter 0061
BTstack counter 0062
BTstack counter 0063
BTstack counter 0064
BTstack counter 0065
BTstack counter 0066
BTstack counter 0067
BTstack counter 0068
BTstack counter 0069
BTstack counter 0070
BTstack counter 0071
RCV: 'sddfhhj. kk jjigjfjfjfghjjhfsdgjkmmjjjjjkkkkk jjjjkkkk kkkkkkk. j hg.  ffffffff. ffffffffgggggghvvdddddddFgghjj. jjjjjjjj'
BTstack counter 0072
BTstack counter 0073
BTstack counter 0074
BTstack counter 0075
BTstack counter 0076
BTstack counter 0077
BTstack counter 0078
BTstack counter 0079
BTstack counter 0080
BTstack counter 0081
BTstack counter 0082

[squonk11]

now I also changed hci_dump.c and now there is no logging any more. But my problem remains the same: the communication is too slow. Can you check how fast you can exchange data?

[squonk11]

now I fixed my problem: it was related to a race condition between incoming and outgoing telegrams. Now btStack works. Unfortunately even after tuning everything the the BT communication is much slower than the direct serial communication (approx. factor 2).
@loboris: Thanks for your support.

[squonk11]

Now I saw that there is a bt_spp_acceptor and bt_spp_initiator example available. This seems to be the "missing" BT-classic SPP profile. Has anybody tested it?

[loboris]

Yes, it works fine.

[squonk11]

@loboris: how did you make it work? I am trying to use it but I am getting a system crash after approx. 2 minutes; see here: https://www.esp32.com/viewtopic.php?f=1 ... 742#p39742