BLE Audio

[mrhempman69]

I was directed here from the examples repo: sipeed/M0S_BL616_example#13

Can you please provide an example of how to set up the device to be used as a BLE Audio acceptor, from a phone connection? And the example can show both how to use I2S on the output, and how to use the DAC on the output too?

Where can i get more information on how to use BLE audio with this chip? I know it will involve using one of the LC3 codec libraries on Github

[sakumisu]

examples/audio/player_bt bt audio here.

[mrhempman69]

Hello, I have successfully flashed M0S dock with https://github.com/bouffalolab/bouffalo_sdk/tree/master/examples/audio/player_bt

The problem is, that I cannot execute the A2DP start command, because there is no UART terminal available when plugged in over USB, nor when using the boards GND TX RX pins.

[gamelaster]

@mrhempman69 there are headers with GND RXD TXD on PCB of M0s Dock.

[mrhempman69]

But which IOs for this example?

I already tried the holes labeled "T" and "R"

It says "uart0" in the main.c file, but "uart0" is also listed as many different pins in bl616 document

[gamelaster]

@mrhempman69 that pins labeled T, R and G are those you need.

[mrhempman69]

Thanks. I do not know why it isn't working. The baud rate is supposed to be 2000000 right? And it's not supposed to show a UART interface when connected by USB-C, I tried with both silicon labs CP210x UART bridge (usb adapter), and LTD FT232 Serial Uart (usb adapter), on two separate M0S docks!

I have wired it correctly (T<-->R and R<-->T), tried powering from both USB-C and header-power, The "G" pin is the unlabeled pin near the USB C port, i'm assuming.

Here is the output from the flash log? Perhaps it will help:

[12:08:24.206] - Serial port is COM8
[12:08:24.206] - ==================================================
[12:08:24.226] - FW get address from partiton file C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\examples\audio\player_bt\./build/build_out\partition.bin
[12:08:24.227] - Address=0x10000
[12:08:24.229] - Program Start
[12:08:24.229] - ========= eflash loader cmd arguments =========
[12:08:24.240] - serial port is COM8
[12:08:24.240] - chiptype: bl616
[12:08:24.241] - cpu_reset=False
[12:08:24.518] - com speed: 2000000
[12:08:24.519] - ========= Interface is uart =========
[12:08:24.520] - Bootrom load
[12:08:24.523] - ========= get_boot_info =========
[12:08:24.524] - ========= image get bootinfo =========
[12:08:24.809] - tx rx and power off, press the machine!
[12:08:24.809] - cutoff time is 0.05
[12:08:24.872] - power on tx and rx
[12:08:25.862] - reset cnt: 0, reset hold: 0.05, shake hand delay: 0.1
[12:08:25.862] - clean buf
[12:08:25.870] - send sync
[12:08:26.095] - ack is b'4f4b'
[12:08:26.098] - shake hand success
[12:08:26.612] - data read is b'010016060000010027928001536336cf0eb417000f758010'
[12:08:26.613] - ========= ChipID: b40ecf366353 =========
[12:08:26.616] - Get bootinfo time cost(ms): 2091.80908203125
[12:08:26.618] - change bdrate: 2000000
[12:08:26.620] - Clock PLL set
[12:08:26.622] - Set clock time cost(ms): 1.00146484375
[12:08:26.751] - Read mac addr
[12:08:26.752] - MACADDR: b40ecf366353
[12:08:26.752] - flash set para
[12:08:26.754] - get flash pin cfg from bootinfo: 0x02
[12:08:26.757] - set flash cfg: 1014102
[12:08:26.759] - Set flash config
[12:08:26.761] - Set para time cost(ms): 1.12890625
[12:08:26.762] - ========= flash read jedec ID =========
[12:08:26.764] - Read flash jedec ID
[12:08:26.765] - readdata:
[12:08:26.766] - b'c8601600'
[12:08:26.767] - Finished
[12:08:26.772] - flash config Not found,use default
[12:08:26.773] - jedec_id:c86016
[12:08:26.774] - capacity_id:22
[12:08:26.776] - capacity:4.0M
[12:08:26.777] - get flash size: 0x00400000
[12:08:26.778] - Program operation
[12:08:26.781] - Dealing Index 0
[12:08:26.781] - ========= programming C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\examples\audio\player_bt\.\build\build_out\boot2_bl616_isp_release_v8.1.1.bin to 0x000000
[12:08:26.785] - flash para file: C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\tools\bflb_tools\bouffalo_flash_cube\chips/bl616/efuse_bootheader/flash_para.bin
[12:08:26.788] - Set flash config
[12:08:26.790] - Set para time cost(ms): 2.6806640625
[12:08:26.790] - ========= flash load =========
[12:08:26.793] - ========= flash erase =========
[12:08:26.794] - Erase flash  from 0x0 to 0xb76f
[12:08:27.028] - Erase time cost(ms): 233.175048828125
[12:08:27.074] - decompress flash load 23368
[12:08:27.101] - Load 2048/23368 {"progress":8}
[12:08:27.116] - Load 4096/23368 {"progress":17}
[12:08:27.133] - Load 6144/23368 {"progress":26}
[12:08:27.142] - Load 8192/23368 {"progress":35}
[12:08:27.158] - Load 10240/23368 {"progress":43}
[12:08:27.174] - Load 12288/23368 {"progress":52}
[12:08:27.191] - Load 14336/23368 {"progress":61}
[12:08:27.207] - Load 16384/23368 {"progress":70}
[12:08:27.223] - Load 18432/23368 {"progress":78}
[12:08:27.240] - Load 20480/23368 {"progress":87}
[12:08:27.250] - Load 22528/23368 {"progress":96}
[12:08:27.266] - Load 23368/23368 {"progress":100}
[12:08:27.267] - Load 23368/23368 {"progress":100}
[12:08:27.269] - Write check
[12:08:27.273] - Flash load time cost(ms): 242.020263671875
[12:08:27.273] - Finished
[12:08:27.276] - Sha caled by host: 1d1f24bc7adc9675a60b3ae92ef4280347781db0788c9dcf52498c476fcda615
[12:08:27.277] - xip mode Verify
[12:08:27.319] - Read Sha256/46960
[12:08:27.319] - Flash xip readsha time cost(ms): 39.420166015625
[12:08:27.322] - Finished
[12:08:27.325] - Sha caled by dev: 1d1f24bc7adc9675a60b3ae92ef4280347781db0788c9dcf52498c476fcda615
[12:08:27.325] - Verify success
[12:08:27.329] - Dealing Index 1
[12:08:27.330] - ========= programming C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\examples\audio\player_bt\.\build\build_out\partition.bin to 0xE000
[12:08:27.332] - flash para file: C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\tools\bflb_tools\bouffalo_flash_cube\chips/bl616/efuse_bootheader/flash_para.bin
[12:08:27.333] - Set flash config
[12:08:27.337] - Set para time cost(ms): 2.58935546875
[12:08:27.337] - ========= flash load =========
[12:08:27.339] - ========= flash erase =========
[12:08:27.340] - Erase flash  from 0xe000 to 0xe133
[12:08:27.379] - Erase time cost(ms): 37.906982421875
[12:08:27.383] - Load 308/308 {"progress":100}
[12:08:27.383] - Load 308/308 {"progress":100}
[12:08:27.384] - Write check
[12:08:27.388] - Flash load time cost(ms): 6.878173828125
[12:08:27.389] - Finished
[12:08:27.390] - Sha caled by host: 99c055a2a7279c04d989a2a270106d2e2584a2d5773b57e40b3af0d87f623d12
[12:08:27.391] - xip mode Verify
[12:08:27.395] - Read Sha256/308
[12:08:27.396] - Flash xip readsha time cost(ms): 1.993896484375
[12:08:27.398] - Finished
[12:08:27.399] - Sha caled by dev: 99c055a2a7279c04d989a2a270106d2e2584a2d5773b57e40b3af0d87f623d12
[12:08:27.400] - Verify success
[12:08:27.404] - Dealing Index 2
[12:08:27.405] - ========= programming C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\examples\audio\player_bt\.\build\build_out\player_bt_bl616.bin to 0x10000
[12:08:27.410] - flash para file: C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\tools\bflb_tools\bouffalo_flash_cube\chips/bl616/efuse_bootheader/flash_para.bin
[12:08:27.410] - Set flash config
[12:08:27.413] - Set para time cost(ms): 1.993896484375
[12:08:27.414] - ========= flash load =========
[12:08:27.418] - ========= flash erase =========
[12:08:27.418] - Erase flash  from 0x10000 to 0x17d50f
[12:08:30.478] - Erase time cost(ms): 3059.501220703125
[12:08:31.255] - decompress flash load 888608
[12:08:31.281] - Load 2048/888608 {"progress":0}
[12:08:31.297] - Load 4096/888608 {"progress":0}
[12:08:31.307] - Load 6144/888608 {"progress":0}
[12:08:31.325] - Load 8192/888608 {"progress":0}
[12:08:31.342] - Load 10240/888608 {"progress":1}
[12:08:31.358] - Load 12288/888608 {"progress":1}
[12:08:31.376] - Load 14336/888608 {"progress":1}
[12:08:31.393] - Load 16384/888608 {"progress":1}
[12:08:31.403] - Load 18432/888608 {"progress":2}
[12:08:31.419] - Load 20480/888608 {"progress":2}
[12:08:31.436] - Load 22528/888608 {"progress":2}
[12:08:31.446] - Load 24576/888608 {"progress":2}
[12:08:31.463] - Load 26624/888608 {"progress":2}
[12:08:31.479] - Load 28672/888608 {"progress":3}
[12:08:31.496] - Load 30720/888608 {"progress":3}
[12:08:31.506] - Load 32768/888608 {"progress":3}
[12:08:31.523] - Load 34816/888608 {"progress":3}
[12:08:31.540] - Load 36864/888608 {"progress":4}
[12:08:31.557] - Load 38912/888608 {"progress":4}
[12:08:31.567] - Load 40960/888608 {"progress":4}
[12:08:31.583] - Load 43008/888608 {"progress":4}
[12:08:31.601] - Load 45056/888608 {"progress":5}
[12:08:31.611] - Load 47104/888608 {"progress":5}
[12:08:31.627] - Load 49152/888608 {"progress":5}
[12:08:31.643] - Load 51200/888608 {"progress":5}
[12:08:31.661] - Load 53248/888608 {"progress":5}
[12:08:31.671] - Load 55296/888608 {"progress":6}
[12:08:31.688] - Load 57344/888608 {"progress":6}
[12:08:31.705] - Load 59392/888608 {"progress":6}
[12:08:31.722] - Load 61440/888608 {"progress":6}
[12:08:31.739] - Load 63488/888608 {"progress":7}
[12:08:31.749] - Load 65536/888608 {"progress":7}
[12:08:31.766] - Load 67584/888608 {"progress":7}
[12:08:31.782] - Load 69632/888608 {"progress":7}
[12:08:31.799] - Load 71680/888608 {"progress":8}
[12:08:31.809] - Load 73728/888608 {"progress":8}
[12:08:31.827] - Load 75776/888608 {"progress":8}
[12:08:31.844] - Load 77824/888608 {"progress":8}
[12:08:31.861] - Load 79872/888608 {"progress":8}
[12:08:31.878] - Load 81920/888608 {"progress":9}
[12:08:31.895] - Load 83968/888608 {"progress":9}
[12:08:31.905] - Load 86016/888608 {"progress":9}
[12:08:31.922] - Load 88064/888608 {"progress":9}
[12:08:31.939] - Load 90112/888608 {"progress":10}
[12:08:31.948] - Load 92160/888608 {"progress":10}
[12:08:31.965] - Load 94208/888608 {"progress":10}
[12:08:31.982] - Load 96256/888608 {"progress":10}
[12:08:31.999] - Load 98304/888608 {"progress":11}
[12:08:32.009] - Load 100352/888608 {"progress":11}
[12:08:32.026] - Load 102400/888608 {"progress":11}
[12:08:32.043] - Load 104448/888608 {"progress":11}
[12:08:32.053] - Load 106496/888608 {"progress":11}
[12:08:32.071] - Load 108544/888608 {"progress":12}
[12:08:32.087] - Load 110592/888608 {"progress":12}
[12:08:32.104] - Load 112640/888608 {"progress":12}
[12:08:32.114] - Load 114688/888608 {"progress":12}
[12:08:32.131] - Load 116736/888608 {"progress":13}
[12:08:32.147] - Load 118784/888608 {"progress":13}
[12:08:32.158] - Load 120832/888608 {"progress":13}
[12:08:32.174] - Load 122880/888608 {"progress":13}
[12:08:32.191] - Load 124928/888608 {"progress":14}
[12:08:32.201] - Load 126976/888608 {"progress":14}
[12:08:32.218] - Load 129024/888608 {"progress":14}
[12:08:32.235] - Load 131072/888608 {"progress":14}
[12:08:32.251] - Load 133120/888608 {"progress":14}
[12:08:32.262] - Load 135168/888608 {"progress":15}
[12:08:32.279] - Load 137216/888608 {"progress":15}
[12:08:32.296] - Load 139264/888608 {"progress":15}
[12:08:32.313] - Load 141312/888608 {"progress":15}
[12:08:32.323] - Load 143360/888608 {"progress":16}
[12:08:32.340] - Load 145408/888608 {"progress":16}
[12:08:32.356] - Load 147456/888608 {"progress":16}
[12:08:32.367] - Load 149504/888608 {"progress":16}
[12:08:32.383] - Load 151552/888608 {"progress":17}
[12:08:32.400] - Load 153600/888608 {"progress":17}
[12:08:32.416] - Load 155648/888608 {"progress":17}
[12:08:32.427] - Load 157696/888608 {"progress":17}
[12:08:32.443] - Load 159744/888608 {"progress":17}
[12:08:32.460] - Load 161792/888608 {"progress":18}
[12:08:32.471] - Load 163840/888608 {"progress":18}
[12:08:32.489] - Load 165888/888608 {"progress":18}
[12:08:32.506] - Load 167936/888608 {"progress":18}
[12:08:32.522] - Load 169984/888608 {"progress":19}
[12:08:32.533] - Load 172032/888608 {"progress":19}
[12:08:32.551] - Load 174080/888608 {"progress":19}
[12:08:32.568] - Load 176128/888608 {"progress":19}
[12:08:32.585] - Load 178176/888608 {"progress":20}
[12:08:32.595] - Load 180224/888608 {"progress":20}
[12:08:32.612] - Load 182272/888608 {"progress":20}
[12:08:32.629] - Load 184320/888608 {"progress":20}
[12:08:32.646] - Load 186368/888608 {"progress":20}
[12:08:32.656] - Load 188416/888608 {"progress":21}
[12:08:32.673] - Load 190464/888608 {"progress":21}
[12:08:32.689] - Load 192512/888608 {"progress":21}
[12:08:32.706] - Load 194560/888608 {"progress":21}
[12:08:32.716] - Load 196608/888608 {"progress":22}
[12:08:32.733] - Load 198656/888608 {"progress":22}
[12:08:32.750] - Load 200704/888608 {"progress":22}
[12:08:32.767] - Load 202752/888608 {"progress":22}
[12:08:32.777] - Load 204800/888608 {"progress":23}
[12:08:32.794] - Load 206848/888608 {"progress":23}
[12:08:32.811] - Load 208896/888608 {"progress":23}
[12:08:32.827] - Load 210944/888608 {"progress":23}
[12:08:32.838] - Load 212992/888608 {"progress":23}
[12:08:32.855] - Load 215040/888608 {"progress":24}
[12:08:32.872] - Load 217088/888608 {"progress":24}
[12:08:32.882] - Load 219136/888608 {"progress":24}
[12:08:32.899] - Load 221184/888608 {"progress":24}
[12:08:32.916] - Load 223232/888608 {"progress":25}
[12:08:32.933] - Load 225280/888608 {"progress":25}
[12:08:32.943] - Load 227328/888608 {"progress":25}
[12:08:32.960] - Load 229376/888608 {"progress":25}
[12:08:32.977] - Load 231424/888608 {"progress":26}
[12:08:32.994] - Load 233472/888608 {"progress":26}
[12:08:33.011] - Load 235520/888608 {"progress":26}
[12:08:33.028] - Load 237568/888608 {"progress":26}
[12:08:33.045] - Load 239616/888608 {"progress":26}
[12:08:33.054] - Load 241664/888608 {"progress":27}
[12:08:33.071] - Load 243712/888608 {"progress":27}
[12:08:33.088] - Load 245760/888608 {"progress":27}
[12:08:33.105] - Load 247808/888608 {"progress":27}
[12:08:33.115] - Load 249856/888608 {"progress":28}
[12:08:33.131] - Load 251904/888608 {"progress":28}
[12:08:33.148] - Load 253952/888608 {"progress":28}
[12:08:33.166] - Load 256000/888608 {"progress":28}
[12:08:33.183] - Load 258048/888608 {"progress":29}
[12:08:33.200] - Load 260096/888608 {"progress":29}
[12:08:33.210] - Load 262144/888608 {"progress":29}
[12:08:33.227] - Load 264192/888608 {"progress":29}
[12:08:33.244] - Load 266240/888608 {"progress":29}
[12:08:33.261] - Load 268288/888608 {"progress":30}
[12:08:33.277] - Load 270336/888608 {"progress":30}
[12:08:33.288] - Load 272384/888608 {"progress":30}
[12:08:33.305] - Load 274432/888608 {"progress":30}
[12:08:33.321] - Load 276480/888608 {"progress":31}
[12:08:33.339] - Load 278528/888608 {"progress":31}
[12:08:33.355] - Load 280576/888608 {"progress":31}
[12:08:33.365] - Load 282624/888608 {"progress":31}
[12:08:33.382] - Load 284672/888608 {"progress":32}
[12:08:33.399] - Load 286720/888608 {"progress":32}
[12:08:33.416] - Load 288768/888608 {"progress":32}
[12:08:33.433] - Load 290816/888608 {"progress":32}
[12:08:33.450] - Load 292864/888608 {"progress":32}
[12:08:33.467] - Load 294912/888608 {"progress":33}
[12:08:33.485] - Load 296960/888608 {"progress":33}
[12:08:33.496] - Load 299008/888608 {"progress":33}
[12:08:33.513] - Load 301056/888608 {"progress":33}
[12:08:33.529] - Load 303104/888608 {"progress":34}
[12:08:33.547] - Load 305152/888608 {"progress":34}
[12:08:33.563] - Load 307200/888608 {"progress":34}
[12:08:33.573] - Load 309248/888608 {"progress":34}
[12:08:33.590] - Load 311296/888608 {"progress":35}
[12:08:33.608] - Load 313344/888608 {"progress":35}
[12:08:33.624] - Load 315392/888608 {"progress":35}
[12:08:33.641] - Load 317440/888608 {"progress":35}
[12:08:33.652] - Load 319488/888608 {"progress":35}
[12:08:33.669] - Load 321536/888608 {"progress":36}
[12:08:33.685] - Load 323584/888608 {"progress":36}
[12:08:33.703] - Load 325632/888608 {"progress":36}
[12:08:33.713] - Load 327680/888608 {"progress":36}
[12:08:33.730] - Load 329728/888608 {"progress":37}
[12:08:33.747] - Load 331776/888608 {"progress":37}
[12:08:33.764] - Load 333824/888608 {"progress":37}
[12:08:33.780] - Load 335872/888608 {"progress":37}
[12:08:33.790] - Load 337920/888608 {"progress":38}
[12:08:33.807] - Load 339968/888608 {"progress":38}
[12:08:33.825] - Load 342016/888608 {"progress":38}
[12:08:33.842] - Load 344064/888608 {"progress":38}
[12:08:33.859] - Load 346112/888608 {"progress":38}
[12:08:33.876] - Load 348160/888608 {"progress":39}
[12:08:33.894] - Load 350208/888608 {"progress":39}
[12:08:33.911] - Load 352256/888608 {"progress":39}
[12:08:33.929] - Load 354304/888608 {"progress":39}
[12:08:33.946] - Load 356352/888608 {"progress":40}
[12:08:33.964] - Load 358400/888608 {"progress":40}
[12:08:33.981] - Load 360448/888608 {"progress":40}
[12:08:33.998] - Load 362496/888608 {"progress":40}
[12:08:34.016] - Load 364544/888608 {"progress":41}
[12:08:34.033] - Load 366592/888608 {"progress":41}
[12:08:34.050] - Load 368640/888608 {"progress":41}
[12:08:34.067] - Load 370688/888608 {"progress":41}
[12:08:34.077] - Load 372736/888608 {"progress":41}
[12:08:34.093] - Load 374784/888608 {"progress":42}
[12:08:34.111] - Load 376832/888608 {"progress":42}
[12:08:34.121] - Load 378880/888608 {"progress":42}
[12:08:34.138] - Load 380928/888608 {"progress":42}
[12:08:34.155] - Load 382976/888608 {"progress":43}
[12:08:34.171] - Load 385024/888608 {"progress":43}
[12:08:34.188] - Load 387072/888608 {"progress":43}
[12:08:34.199] - Load 389120/888608 {"progress":43}
[12:08:34.215] - Load 391168/888608 {"progress":44}
[12:08:34.232] - Load 393216/888608 {"progress":44}
[12:08:34.249] - Load 395264/888608 {"progress":44}
[12:08:34.267] - Load 397312/888608 {"progress":44}
[12:08:34.284] - Load 399360/888608 {"progress":44}
[12:08:34.301] - Load 401408/888608 {"progress":45}
[12:08:34.312] - Load 403456/888608 {"progress":45}
[12:08:34.330] - Load 405504/888608 {"progress":45}
[12:08:34.347] - Load 407552/888608 {"progress":45}
[12:08:34.365] - Load 409600/888608 {"progress":46}
[12:08:34.382] - Load 411648/888608 {"progress":46}
[12:08:34.399] - Load 413696/888608 {"progress":46}
[12:08:34.416] - Load 415744/888608 {"progress":46}
[12:08:34.432] - Load 417792/888608 {"progress":47}
[12:08:34.443] - Load 419840/888608 {"progress":47}
[12:08:34.460] - Load 421888/888608 {"progress":47}
[12:08:34.476] - Load 423936/888608 {"progress":47}
[12:08:34.494] - Load 425984/888608 {"progress":47}
[12:08:34.511] - Load 428032/888608 {"progress":48}
[12:08:34.521] - Load 430080/888608 {"progress":48}
[12:08:34.537] - Load 432128/888608 {"progress":48}
[12:08:34.554] - Load 434176/888608 {"progress":48}
[12:08:34.571] - Load 436224/888608 {"progress":49}
[12:08:34.581] - Load 438272/888608 {"progress":49}
[12:08:34.599] - Load 440320/888608 {"progress":49}
[12:08:34.616] - Load 442368/888608 {"progress":49}
[12:08:34.632] - Load 444416/888608 {"progress":50}
[12:08:34.650] - Load 446464/888608 {"progress":50}
[12:08:34.667] - Load 448512/888608 {"progress":50}
[12:08:34.676] - Load 450560/888608 {"progress":50}
[12:08:34.693] - Load 452608/888608 {"progress":50}
[12:08:34.710] - Load 454656/888608 {"progress":51}
[12:08:34.720] - Load 456704/888608 {"progress":51}
[12:08:34.737] - Load 458752/888608 {"progress":51}
[12:08:34.753] - Load 460800/888608 {"progress":51}
[12:08:34.771] - Load 462848/888608 {"progress":52}
[12:08:34.781] - Load 464896/888608 {"progress":52}
[12:08:34.799] - Load 466944/888608 {"progress":52}
[12:08:34.816] - Load 468992/888608 {"progress":52}
[12:08:34.832] - Load 471040/888608 {"progress":53}
[12:08:34.850] - Load 473088/888608 {"progress":53}
[12:08:34.867] - Load 475136/888608 {"progress":53}
[12:08:34.877] - Load 477184/888608 {"progress":53}
[12:08:34.895] - Load 479232/888608 {"progress":53}
[12:08:34.912] - Load 481280/888608 {"progress":54}
[12:08:34.929] - Load 483328/888608 {"progress":54}
[12:08:34.946] - Load 485376/888608 {"progress":54}
[12:08:34.964] - Load 487424/888608 {"progress":54}
[12:08:34.974] - Load 489472/888608 {"progress":55}
[12:08:34.991] - Load 491520/888608 {"progress":55}
[12:08:35.008] - Load 493568/888608 {"progress":55}
[12:08:35.025] - Load 495616/888608 {"progress":55}
[12:08:35.042] - Load 497664/888608 {"progress":56}
[12:08:35.059] - Load 499712/888608 {"progress":56}
[12:08:35.077] - Load 501760/888608 {"progress":56}
[12:08:35.086] - Load 503808/888608 {"progress":56}
[12:08:35.104] - Load 505856/888608 {"progress":56}
[12:08:35.121] - Load 507904/888608 {"progress":57}
[12:08:35.139] - Load 509952/888608 {"progress":57}
[12:08:35.156] - Load 512000/888608 {"progress":57}
[12:08:35.174] - Load 514048/888608 {"progress":57}
[12:08:35.191] - Load 516096/888608 {"progress":58}
[12:08:35.208] - Load 518144/888608 {"progress":58}
[12:08:35.225] - Load 520192/888608 {"progress":58}
[12:08:35.242] - Load 522240/888608 {"progress":58}
[12:08:35.252] - Load 524288/888608 {"progress":59}
[12:08:35.270] - Load 526336/888608 {"progress":59}
[12:08:35.287] - Load 528384/888608 {"progress":59}
[12:08:35.303] - Load 530432/888608 {"progress":59}
[12:08:35.320] - Load 532480/888608 {"progress":59}
[12:08:35.329] - Load 534528/888608 {"progress":60}
[12:08:35.348] - Load 536576/888608 {"progress":60}
[12:08:35.364] - Load 538624/888608 {"progress":60}
[12:08:35.381] - Load 540672/888608 {"progress":60}
[12:08:35.398] - Load 542720/888608 {"progress":61}
[12:08:35.416] - Load 544768/888608 {"progress":61}
[12:08:35.433] - Load 546816/888608 {"progress":61}
[12:08:35.450] - Load 548864/888608 {"progress":61}
[12:08:35.467] - Load 550912/888608 {"progress":61}
[12:08:35.478] - Load 552960/888608 {"progress":62}
[12:08:35.495] - Load 555008/888608 {"progress":62}
[12:08:35.511] - Load 557056/888608 {"progress":62}
[12:08:35.528] - Load 559104/888608 {"progress":62}
[12:08:35.538] - Load 561152/888608 {"progress":63}
[12:08:35.555] - Load 563200/888608 {"progress":63}
[12:08:35.572] - Load 565248/888608 {"progress":63}
[12:08:35.589] - Load 567296/888608 {"progress":63}
[12:08:35.606] - Load 569344/888608 {"progress":64}
[12:08:35.616] - Load 571392/888608 {"progress":64}
[12:08:35.633] - Load 573440/888608 {"progress":64}
[12:08:35.650] - Load 575488/888608 {"progress":64}
[12:08:35.667] - Load 577536/888608 {"progress":64}
[12:08:35.677] - Load 579584/888608 {"progress":65}
[12:08:35.694] - Load 581632/888608 {"progress":65}
[12:08:35.711] - Load 583680/888608 {"progress":65}
[12:08:35.728] - Load 585728/888608 {"progress":65}
[12:08:35.745] - Load 587776/888608 {"progress":66}
[12:08:35.755] - Load 589824/888608 {"progress":66}
[12:08:35.772] - Load 591872/888608 {"progress":66}
[12:08:35.789] - Load 593920/888608 {"progress":66}
[12:08:35.806] - Load 595968/888608 {"progress":67}
[12:08:35.823] - Load 598016/888608 {"progress":67}
[12:08:35.841] - Load 600064/888608 {"progress":67}
[12:08:35.851] - Load 602112/888608 {"progress":67}
[12:08:35.867] - Load 604160/888608 {"progress":67}
[12:08:35.884] - Load 606208/888608 {"progress":68}
[12:08:35.902] - Load 608256/888608 {"progress":68}
[12:08:35.919] - Load 610304/888608 {"progress":68}
[12:08:35.929] - Load 612352/888608 {"progress":68}
[12:08:35.946] - Load 614400/888608 {"progress":69}
[12:08:35.962] - Load 616448/888608 {"progress":69}
[12:08:35.980] - Load 618496/888608 {"progress":69}
[12:08:35.997] - Load 620544/888608 {"progress":69}
[12:08:36.007] - Load 622592/888608 {"progress":70}
[12:08:36.024] - Load 624640/888608 {"progress":70}
[12:08:36.041] - Load 626688/888608 {"progress":70}
[12:08:36.058] - Load 628736/888608 {"progress":70}
[12:08:36.075] - Load 630784/888608 {"progress":70}
[12:08:36.084] - Load 632832/888608 {"progress":71}
[12:08:36.102] - Load 634880/888608 {"progress":71}
[12:08:36.120] - Load 636928/888608 {"progress":71}
[12:08:36.136] - Load 638976/888608 {"progress":71}
[12:08:36.146] - Load 641024/888608 {"progress":72}
[12:08:36.164] - Load 643072/888608 {"progress":72}
[12:08:36.181] - Load 645120/888608 {"progress":72}
[12:08:36.198] - Load 647168/888608 {"progress":72}
[12:08:36.215] - Load 649216/888608 {"progress":73}
[12:08:36.232] - Load 651264/888608 {"progress":73}
[12:08:36.242] - Load 653312/888608 {"progress":73}
[12:08:36.259] - Load 655360/888608 {"progress":73}
[12:08:36.276] - Load 657408/888608 {"progress":73}
[12:08:36.293] - Load 659456/888608 {"progress":74}
[12:08:36.310] - Load 661504/888608 {"progress":74}
[12:08:36.327] - Load 663552/888608 {"progress":74}
[12:08:36.338] - Load 665600/888608 {"progress":74}
[12:08:36.354] - Load 667648/888608 {"progress":75}
[12:08:36.372] - Load 669696/888608 {"progress":75}
[12:08:36.389] - Load 671744/888608 {"progress":75}
[12:08:36.398] - Load 673792/888608 {"progress":75}
[12:08:36.416] - Load 675840/888608 {"progress":76}
[12:08:36.433] - Load 677888/888608 {"progress":76}
[12:08:36.450] - Load 679936/888608 {"progress":76}
[12:08:36.468] - Load 681984/888608 {"progress":76}
[12:08:36.485] - Load 684032/888608 {"progress":76}
[12:08:36.503] - Load 686080/888608 {"progress":77}
[12:08:36.520] - Load 688128/888608 {"progress":77}
[12:08:36.537] - Load 690176/888608 {"progress":77}
[12:08:36.553] - Load 692224/888608 {"progress":77}
[12:08:36.570] - Load 694272/888608 {"progress":78}
[12:08:36.588] - Load 696320/888608 {"progress":78}
[12:08:36.598] - Load 698368/888608 {"progress":78}
[12:08:36.615] - Load 700416/888608 {"progress":78}
[12:08:36.632] - Load 702464/888608 {"progress":79}
[12:08:36.649] - Load 704512/888608 {"progress":79}
[12:08:36.666] - Load 706560/888608 {"progress":79}
[12:08:36.683] - Load 708608/888608 {"progress":79}
[12:08:36.693] - Load 710656/888608 {"progress":79}
[12:08:36.710] - Load 712704/888608 {"progress":80}
[12:08:36.726] - Load 714752/888608 {"progress":80}
[12:08:36.744] - Load 716800/888608 {"progress":80}
[12:08:36.754] - Load 718848/888608 {"progress":80}
[12:08:36.771] - Load 720896/888608 {"progress":81}
[12:08:36.789] - Load 722944/888608 {"progress":81}
[12:08:36.806] - Load 724992/888608 {"progress":81}
[12:08:36.823] - Load 727040/888608 {"progress":81}
[12:08:36.852] - Load 729088/888608 {"progress":82}
[12:08:36.868] - Load 731136/888608 {"progress":82}
[12:08:36.876] - Load 733184/888608 {"progress":82}
[12:08:36.893] - Load 735232/888608 {"progress":82}
[12:08:36.909] - Load 737280/888608 {"progress":82}
[12:08:36.918] - Load 739328/888608 {"progress":83}
[12:08:36.934] - Load 741376/888608 {"progress":83}
[12:08:36.944] - Load 743424/888608 {"progress":83}
[12:08:36.961] - Load 745472/888608 {"progress":83}
[12:08:36.978] - Load 747520/888608 {"progress":84}
[12:08:36.989] - Load 749568/888608 {"progress":84}
[12:08:37.007] - Load 751616/888608 {"progress":84}
[12:08:37.018] - Load 753664/888608 {"progress":84}
[12:08:37.035] - Load 755712/888608 {"progress":85}
[12:08:37.052] - Load 757760/888608 {"progress":85}
[12:08:37.071] - Load 759808/888608 {"progress":85}
[12:08:37.080] - Load 761856/888608 {"progress":85}
[12:08:37.097] - Load 763904/888608 {"progress":85}
[12:08:37.107] - Load 765952/888608 {"progress":86}
[12:08:37.125] - Load 768000/888608 {"progress":86}
[12:08:37.144] - Load 770048/888608 {"progress":86}
[12:08:37.161] - Load 772096/888608 {"progress":86}
[12:08:37.172] - Load 774144/888608 {"progress":87}
[12:08:37.192] - Load 776192/888608 {"progress":87}
[12:08:37.210] - Load 778240/888608 {"progress":87}
[12:08:37.236] - Load 780288/888608 {"progress":87}
[12:08:37.247] - Load 782336/888608 {"progress":88}
[12:08:37.264] - Load 784384/888608 {"progress":88}
[12:08:37.282] - Load 786432/888608 {"progress":88}
[12:08:37.291] - Load 788480/888608 {"progress":88}
[12:08:37.308] - Load 790528/888608 {"progress":88}
[12:08:37.325] - Load 792576/888608 {"progress":89}
[12:08:37.342] - Load 794624/888608 {"progress":89}
[12:08:37.360] - Load 796672/888608 {"progress":89}
[12:08:37.378] - Load 798720/888608 {"progress":89}
[12:08:37.395] - Load 800768/888608 {"progress":90}
[12:08:37.411] - Load 802816/888608 {"progress":90}
[12:08:37.422] - Load 804864/888608 {"progress":90}
[12:08:37.440] - Load 806912/888608 {"progress":90}
[12:08:37.456] - Load 808960/888608 {"progress":91}
[12:08:37.474] - Load 811008/888608 {"progress":91}
[12:08:37.483] - Load 813056/888608 {"progress":91}
[12:08:37.499] - Load 815104/888608 {"progress":91}
[12:08:37.509] - Load 817152/888608 {"progress":91}
[12:08:37.526] - Load 819200/888608 {"progress":92}
[12:08:37.543] - Load 821248/888608 {"progress":92}
[12:08:37.561] - Load 823296/888608 {"progress":92}
[12:08:37.571] - Load 825344/888608 {"progress":92}
[12:08:37.588] - Load 827392/888608 {"progress":93}
[12:08:37.605] - Load 829440/888608 {"progress":93}
[12:08:37.625] - Load 831488/888608 {"progress":93}
[12:08:37.644] - Load 833536/888608 {"progress":93}
[12:08:37.671] - Load 835584/888608 {"progress":94}
[12:08:37.725] - Load 837632/888608 {"progress":94}
[12:08:37.743] - Load 839680/888608 {"progress":94}
[12:08:37.762] - Load 841728/888608 {"progress":94}
[12:08:37.780] - Load 843776/888608 {"progress":94}
[12:08:37.799] - Load 845824/888608 {"progress":95}
[12:08:37.815] - Load 847872/888608 {"progress":95}
[12:08:37.834] - Load 849920/888608 {"progress":95}
[12:08:37.859] - Load 851968/888608 {"progress":95}
[12:08:37.876] - Load 854016/888608 {"progress":96}
[12:08:37.902] - Load 856064/888608 {"progress":96}
[12:08:37.920] - Load 858112/888608 {"progress":96}
[12:08:37.937] - Load 860160/888608 {"progress":96}
[12:08:37.962] - Load 862208/888608 {"progress":97}
[12:08:37.981] - Load 864256/888608 {"progress":97}
[12:08:37.998] - Load 866304/888608 {"progress":97}
[12:08:38.017] - Load 868352/888608 {"progress":97}
[12:08:38.044] - Load 870400/888608 {"progress":97}
[12:08:38.063] - Load 872448/888608 {"progress":98}
[12:08:38.089] - Load 874496/888608 {"progress":98}
[12:08:38.115] - Load 876544/888608 {"progress":98}
[12:08:38.135] - Load 878592/888608 {"progress":98}
[12:08:38.159] - Load 880640/888608 {"progress":99}
[12:08:38.177] - Load 882688/888608 {"progress":99}
[12:08:38.186] - Load 884736/888608 {"progress":99}
[12:08:38.202] - Load 886784/888608 {"progress":99}
[12:08:38.230] - Load 888608/888608 {"progress":100}
[12:08:38.230] - Load 888608/888608 {"progress":100}
[12:08:38.233] - Write check
[12:08:38.238] - Flash load time cost(ms): 7756.065185546875
[12:08:38.238] - Finished
[12:08:38.268] - Sha caled by host: 2084c0b16898a7de5804c60d3d0c5ced2b77e92b7dcd44c9ceace7fa73c57f88
[12:08:38.268] - xip mode Verify
[12:08:39.509] - Read Sha256/1496336
[12:08:39.509] - Flash xip readsha time cost(ms): 1237.662353515625
[12:08:39.514] - Finished
[12:08:39.516] - Sha caled by dev: 2084c0b16898a7de5804c60d3d0c5ced2b77e92b7dcd44c9ceace7fa73c57f88
[12:08:39.517] - Verify success
[12:08:39.522] - Program Finished
[12:08:39.523] - All time cost(ms): 15293.658203125
[12:08:39.658] - close interface
[12:08:39.658] - [All Success]

[mrhempman69]

Is there a line that I can change in the code to automatically enable a2dp broadcast? Without needing uart.

Also the Bluetooth name if possible. So that i can flash it with those settings and not use UART

[mrhempman69]

This is a problem specific to the player_bt example. Because, I can run helloworld example and get proper UART output.

I do get these warnings on build:

C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\examples\audio\player_bt\main.c:31:13: warning: implicit declaration of function 'bflb_device_get_by_name' [-Wimplicit-function-declaration]
   31 |     uart0 = bflb_device_get_by_name("uart0");
      |             ^~~~~~~~~~~~~~~~~~~~~~~
C:\Users\mrhem\bouffalo_sdk_setup\bouffalo_sdk\examples\audio\player_bt\main.c:31:11: warning: assignment to 'struct bflb_device_s *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
   31 |     uart0 = bflb_device_get_by_name("uart0");

[mrhempman69]

So the helloworld example works. But the examples/audio/player_bt one does not. Even when I change its main.c to be more like helloworld, still no logging output.

I think it has to do with bflb_device_get_by_name function...

Please try examples/audio/player_bt and see if you get output or input over UART....

/*
 * Copyright (C) 2017-2022 Bouffalolab Group Holding Limited
 * Change Logs:
 *   Date        Author       Notes
 *   2019-03-25  MSP          the first version
 */

#include "shell.h"
#include <FreeRTOS.h>
#include "task.h"
#include "bflb_mtimer.h"
#include "bflb_core.h"
#include "board.h"
#define DBG_TAG "MAIN"
#include "log.h"

#define APP_MAIN_STACK_SIZE          (4*1024)
#define APP_MAIN_TASK_PRIORITY       (1)

static struct bflb_device_s *uart0;

extern void shell_init_with_task(struct bflb_device_s *shell);
extern void app_main_entry(void *arg);

int main(void)
{
    TaskHandle_t xHandle;
    board_init();

    // configASSERT((configMAX_PRIORITIES > 4));

    uart0 = bflb_device_get_by_name("uart0");
    shell_init_with_task(uart0);

    xTaskCreate(app_main_entry, (char *)"app_main", APP_MAIN_STACK_SIZE, NULL, APP_MAIN_TASK_PRIORITY, &xHandle);

    vTaskStartScheduler();

   // No output in this example, but works in helloworld:
    while (1) {
        LOG_F("player_bt hello world fatal\r\n");
        LOG_E("player_bt hello world error\r\n");
        LOG_W("player_bt hello world warning\r\n");
        LOG_I("player_bt hello world information\r\n");
        LOG_D("player_bt hello world debug\r\n");
        LOG_T("player_bt hello world trace\r\n");
        LOG_RF("player_bt hello world fatal raw\r\n");
        LOG_RE("player_bt hello world error raw\r\n");
        LOG_RW("player_bt hello world warning raw\r\n");
        LOG_RI("player_bt hello world information raw\r\n");
        LOG_RD("player_bt hello world debug raw\r\n");
        LOG_RT("player_bt hello world trace raw\r\n");
        bflb_mtimer_delay_ms(3000);
    }
}

[sakumisu]

M0s have no psram, stop using these demos( must enable psram), so there is no log because psram enables failed.

[gamelaster]

@mrhempman69 as @sakumisu says, those examples needs pSRAM, so they can work properly. I can recommend AI-Thinker M61 series boards: https://www.aliexpress.com/i/1005005407935386.html

[mrhempman69]

Thanks... it has to be "p"SRAM? Would like this chip from Adafruit would work? https://www.digikey.com/en/products/filter/memory/memory/774?s=N4IgjCBcoKwOwAYqgMZQGYEMA2BnApgDQgD2UA2iAMwCcCAbAEwAsIAusQA4AuUIAytwBOASwB2AcxABfYmEY0I0EGkhY8RUhRALmCBSGK64MGIZ01mNRvXO6aMRuZgJEADlZHLNOLa8uYNzsHBk8LF3ozDhAePkFRSRliAFonZVVhAFdNMkhKKOlZEFtlEQATPmSwBAguXkgQcwBHbgBPPmrzNs58PkxcNEKgA

8 x 8MB memory
2.7-3.6 operating voltage
8-SOIC
SPI interface
133 MHz clock

It's $1.75 though, while SRAM chips have more options and are cheaper....

[gamelaster]

No, this will not work. You need the pSRAM integrated directly in the chip, afaik, BL616 doesn't expose controller on GPIOs for external pSRAM usage.