Cozylife DS-1211AN 3Gang Touch Switch: 1MB BL602L10 [XT-BL12][DT-BL12] - Images, Firmware & Boot

divadiow 5580 132

#121 21642397 23 Aug 2025 17:11

divadiow divadiow

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Post #121
21642397 23 Aug 2025 17:11

thoughts?

https://github.com/divadiow/OpenBK7231T_App/actions/runs/17176758039
https://github.com/divadiow/OpenBK7231T_App/tree/refs/heads/bl6021mb

and to check: 1mb variant boots on 1mb DT-BL12. 2mb build still does not. 1mb build does not contain berry
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#122 21642558 23 Aug 2025 20:47

insmod insmod

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Post #122
21642558 23 Aug 2025 20:47

>>21642397
If 1mb build works on 2mb, then just add CONFIG_BL602_USE_1M_FLASH define directly in sdk. One less job for workflow that way.
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#123 21642574 23 Aug 2025 21:00

divadiow divadiow

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Post #123
21642574 23 Aug 2025 21:00

Hmm yeh I guess. Will check when home. I think it works fine on 2mb from memory. I wonder what the ACTUAL difference is with CONFIG_BL602_USE_1M_FLASH and if it's use on 2mb+ has any downsides
#124 21642580 23 Aug 2025 21:05

insmod insmod

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Post #124
21642580 23 Aug 2025 21:05

>>21642574
It compiles and uses some specific read/write/erase functions, instead of using ROM ones.
Actually, there is no need to open a pull in SDK. Just add -DCONF_BL602_USE_1M_FLASH=1 define to CFLAGS in bouffalo.mk in app.
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#125 21642622 23 Aug 2025 21:48

divadiow divadiow

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Post #125
21642622 23 Aug 2025 21:48

Oh very good. OK. Good
#126 21643038 24 Aug 2025 12:35

divadiow divadiow

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Post #126
21643038 24 Aug 2025 12:35

insmod wrote:
there is no need to open a pull in SDK. Just add -DCONF_BL602_USE_1M_FLASH=1 define to CFLAGS in bouffalo.mk in app.

hmm. doesn't appear to be effective. 1mb doesn't complete boot like if using usual release

https://github.com/divadiow/OpenBK7231T_App/commit/9f7309b5e29f5dbfca990b2c67e887782321149a
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#127 21643058 24 Aug 2025 12:48

insmod insmod

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Post #127
21643058 24 Aug 2025 12:48

>>21643038
Hmm, it seems that cflags are not exported to global level?
#128 21643060 24 Aug 2025 13:04

divadiow divadiow

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Post #128
21643060 24 Aug 2025 13:04

trying USER_ https://github.com/divadiow/OpenBK7231T_App/commit/d490f1dac9484f8f0e62228ec20a3a7c1415dae0

but maybe you already know if this will make any difference

Added after 3 [minutes]:

nope. no effect

Added after 2 [minutes]:

trying
Code: Text
Log in, to see the code

Added after 7 [minutes]:

nope.

could modify SDK I guess, but preference is to keep SDK pure so it can be updated in future without fear of losing changes?
#129 21646003 27 Aug 2025 13:37

divadiow divadiow

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Post #129
21646003 27 Aug 2025 13:37

insmod wrote:
Enabled 1M config by default (it works fine on 4mb module).

thanks.
bl602_ir_9f263cba4454
https://github.com/NonPIayerCharacter/OpenBK7231T_App/actions/runs/17263341611

1mb module. miegapele 1mb toml

first boot:
Spoiler:
Starting bl602 now....
Booting BL602 Chip...
██████╗ ██╗ ██████╗ ██████╗ ██████╗
██╔══██╗██║ ██╔════╝ ██╔═████╗╚════██╗
██████╔╝██║ ███████╗ ██║██╔██║ █████╔╝
██╔══██╗██║ ██╔═══██╗████╔╝██║██╔═══╝
██████╔╝███████╗╚██████╔╝╚██████╔╝███████╗
╚═════╝ ╚══════╝ ╚═════╝ ╚═════╝ ╚══════╝

------------------------------------------------------------
RISC-V Core Feature:RV32-ACFIMX
Build Version: release_bl_iot_sdk_1.6.39-238-gf5ba0a7ee
Build Date: Aug 27 2025
Build Time: 09:54:04
------------------------------------------------------------

blog init set power on level 2, 2, 2.
[IRQ] Clearing and Disable all the pending IRQ...
[ 0][INFO: hal_boot2.c: 282] [HAL] [BOOT2] Active Partition[0] consumed 596 Bytes
[ 0][INFO: hal_boot2.c: 82] ======= PtTable_Config @0x4200f524=======
[ 0][INFO: hal_boot2.c: 83] magicCode 0x54504642; version 0x0000; entryCnt 4; age 0; crc32 0x944BE888
[ 0][INFO: hal_boot2.c: 89] idx type device activeIndex name Address[0] Address[1] Length[0] Length[1] age
[ 0][INFO: hal_boot2.c: 91] [00] 00 0 0 FW 0x00010000 0x00000000 0x000d7000 0x00000000 0
[ 0][INFO: hal_boot2.c: 91] [01] 03 0 0 media 0x000e7000 0x00000000 0x00002000 0x00000000 0
[ 0][INFO: hal_boot2.c: 91] [02] 04 0 0 PSM 0x000e9000 0x00000000 0x00008000 0x00000000 0
[ 0][INFO: hal_boot2.c: 91] [03] 07 0 0 factory 0x000f1000 0x00000000 0x00007000 0x00000000 0
[ 0][INFO: bl_flash.c: 391] ======= FlashCfg magiccode @0x42049c18=======
[ 0][INFO: bl_flash.c: 392] mid 0xC2
[ 0][INFO: bl_flash.c: 393] clkDelay 0x1
[ 0][INFO: bl_flash.c: 394] clkInvert 0x1
[ 0][INFO: bl_flash.c: 395] sector size 4KBytes
[ 0][INFO: bl_flash.c: 396] page size 256Bytes
[ 0][INFO: bl_flash.c: 397] ---------------------------------------------------------------
[ 0][INFO: hal_board.c:1249] [MAIN] [BOARD] [FLASH] addr from partition is 000f1000, ret is 0
[ 0][INFO: hal_board.c:1257] [MAIN] [BOARD] [XIP] addr from partition is 230e0000, ret is 0
[ 0][INFO: hal_board.c: 208] MAC address mode length 3
[ 0][INFO: hal_board.c: 212] MAC address mode is MBF
Read slot:0
[ 0][INFO: hal_board.c: 187] Set MAC addrress C4:D7:FD:43:90:45
[ 0][INFO: hal_board.c: 955] country_code : 86
[ 0][INFO: hal_board.c: 342] xtal_mode is MF
Read slot:0
[ 0][INFO: hal_board.c: 374] get xtal from M ready 29 29 1 60 60
[ 0][INFO: hal_board.c: 846] pwr_table_11b :20 20 20 18
[ 0][INFO: hal_board.c: 860] pwr_table_11g :18 18 18 18 18 18 14 14
[ 0][INFO: hal_board.c: 878] pwr_table_11n :18 18 18 18 18 16 14 14
No written slot found
[ 0][BUF: hal_board.c: 606] 0 0 0 0 0 0 0 0 0 0 0 0 0 0
[ 0][INFO: hal_board.c: 902] set pwr_table_ble = 13 in dts
[ 0][INFO: hal_board.c: 687] ap_ssid string[0] = bl_test_005, ap_ssid_len = 11
[ 0][INFO: hal_board.c: 698] ap_psk string[0] = 12345678, ap_psk_len = 8
[ 0][INFO: hal_board.c: 707] ap_channel = 11
[ 0][INFO: hal_board.c: 635] [STA] ap_ssid string[0] = yourssid, ap_ssid_len = 8
[ 0][INFO: hal_board.c: 646] [STA] ap_psk string[0] = yourapssword, ap_psk_len = 12
[ 0][INFO: hal_board.c: 654] auto_connect_enable = 0
[ 0][INFO: hal_board.c: 749] Troom_os = -1, lentmp = 4
[ 0][INFO: hal_board.c: 758] linear_or_follow = 1, lentmp = 4
[ 0][INFO: hal_board.c: 767] Tchannels:2412,2427,2442,2457,2472,
[ 0][INFO: hal_board.c: 781] Tchannel_os:180,168,163,160,157,[ 0][INFO: hal_board.c: 795] Tchannel_os_low:199,186,170,165,160,
[ 0][INFO: hal_board.c: 808] en_tcal = 0, lentmp = 4
[OS] Starting aos_loop_proc task...
[OS] Starting OS Scheduler...
[MTD] >>>>>> Hanlde info Dump >>>>>>
name PSM
id 0
offset 0x000e9000(954368)
size 0x00008000(32Kbytes)
xip_addr 0x230d8000
[MTD] <<<<<< Hanlde info End <<<<<<
[EF] Found Valid PSM partition, XIP Addr 230d8000, flash addr 000e9000, size 32768
ENV AREA SIZE 32768, SECTOR NUM 8
*default_env_size = 0x00000001
ENV start address is 0x00000000, size is 32768 bytes.
Warning: Sector header check failed. Format this sector (0x00000000).
Warning: Sector header check failed. Format this sector (0x00001000).
Warning: Sector header check failed. Format this sector (0x00002000).
Warning: Sector header check failed. Format this sector (0x00003000).
Warning: Sector header check failed. Format this sector (0x00004000).
Warning: Sector header check failed. Format this sector (0x00005000).
Warning: Sector header check failed. Format this sector (0x00006000).
Warning: Sector header check failed. Format this sector (0x00007000).
Warning: All sector header check failed. Set it to default.
[ 890][WARN : bl_mtd.c: 205] addr@0x23097a20 is xip flash, size 10
[ 890][WARN : bl_mtd.c: 205] addr@0x230b0bec is xip flash, size 1
EasyFlash V4.0.99 is initialize success.
You can get the latest version on https://github.com/armink/EasyFlash .
[MTD] >>>>>> Hanlde info Dump >>>>>>
name media
id 0
offset 0x000e7000(946176)
size 0x00002000(8Kbytes)
xip_addr 0x230d6000
[MTD] <<<<<< Hanlde info End <<<<<<
[ 901][ERROR : bl_romfs.c: 158] romfs magic is NOT correct
[ 903][INFO : hosal_adc.c: 459] offset = 2228
[ 903][INFO : hosal_adc.c: 233] ADC freq: 284Hz. div:6
[OS] Starting proc_mian_entry task...
[OS] Starting TCP/IP Stack...
[MTD] >>>>>> Hanlde info Dump >>>>>>
name PSM
id 0
offset 0x000e9000(954368)
size 0x00008000(32Kbytes)
xip_addr 0x230d8000
[MTD] <<<<<< H xip_addr 0x230d8000
anlde info End <<<<<<
[EF] Found Valid PSM partition, XIP Addr 230d8000, flash addr 000e9000, size 32768
ENV AREA SIZE 32768, SECTOR NUM 8
*default_env_size = 0x00000001
EasyFlash V4.0.99 is initialize success.
You can get the latest version on https://github.com/armink/EasyFlash .
Start Wi-Fi fw @966ms
1th channel,lo_vco_freq_cw=135
2th channel,lo_vco_freq_cw=134
3th channel,lo_vco_freq_cw=133
4th channel,lo_vco_freq_cw=132
5th channel,lo_vco_freq_cw=131
6th channel,lo_vco_freq_cw=130
7th channel,lo_vco_freq_cw=128
8th channel,lo_vco_freq_cw=127
9th channel,lo_vco_freq_cw=126
10th channel,lo_vco_freq_cw=125
11th channel,lo_vco_freq_cw=124
12th channel,lo_vco_freq_cw=123
13th channel,lo_vco_freq_cw=122
14th channel,lo_vco_freq_cw=121
15th channel,lo_vco_freq_cw=119
16th channel,lo_vco_freq_cw=118
17th channel,lo_vco_freq_cw=117
18th channel,lo_vco_freq_cw=116
19th channel,lo_vco_freq_cw=115
20th channel,lo_vco_freq_cw=114
21th channel,lo_vco_freq_cw=113
0th channel,vco_idac_cw=12
1th channel,vco_idac_cw=11
2th channel,vco_idac_cw=11
3th channel,vco_idac_cw=11
4th channel,vco_idac_cw=11
5th channel,vco_idac_cw=11
6th channel,vco_idac_cw=11
7th channel,vco_idac_cw=11
8th channel,vco_idac_cw=10
9th channel,vco_idac_cw=10
10th channel,vco_idac_cw=10
11th channel,vco_idac_cw=10
12th channel,vco_idac_cw=10
13th channel,vco_idac_cw=10
14th channel,vco_idac_cw=10
15th channel,vco_idac_cw=10
16th channel,vco_idac_cw=10
17th channel,vco_idac_cw=10
18th channel,vco_idac_cw=10
19th channel,vco_idac_cw=10
20th channel,vco_idac_cw=10
LO locked 9 126
rosdac_i_gc3=35
rosdac_i_gc2=35
rosdac_i_gc1=35
rosdac_i_gc0=35
rosdac_q_gc3=32
rosdac_q_gc2=32
rosdac_q_gc1=32
rosdac_q_gc0=32
rbb_cap1_fc_i=17,rbb_cap2_fc_i=17,rbb_cap1_fc_q=17,rbb_cap2_fc_q=17
new rbb_cap1_fc_i=41,rbb_cap2_fc_i=41,rbb_cap1_fc_q=41,rbb_cap2_fc_q=41
LO locked 9 126
amp=128,step=32,adc_mean_i=29
amp=160,step=16,adc_mean_i=48
amp=176,step=8,adc_mean_i=59
amp=184,step=4,adc_mean_i=65
amp=188,step=2,adc_mean_i=67
amp=190,step=1,adc_mean_i=69
amp=191,step=0,adc_mean_i=70
tmx_cs=0, tmxcs_pwr_avg=16484, tmxcs_pwr_avg>>10=16
tmx_cs=1, tmxcs_pwr_avg=23045, tmxcs_pwr_avg>>10=22
tmx_cs=2, tmxcs_pwr_avg=32777, tmxcs_pwr_avg>>10=32
tmx_cs=3, tmxcs_pwr_avg=45828, tmxcs_pwr_avg>>10=44
tmx_cs=4, tmxcs_pwr_avg=59836, tmxcs_pwr_avg>>10=58
tmx_cs=5, tmxcs_pwr_avg=71258, tmxcs_pwr_avg>>10=69
tmx_cs=6, tmxcs_pwr_avg=71602, tmxcs_pwr_avg>>10=69
tmx_cs=7, tmxcs_pwr_avg=61015, tmxcs_pwr_avg>>10=59
tmx_cs_max=6, tmxcs_pwr_max=71602, tmxcs_pwr_max>>10=69
amp=256,step=64,adc_mean_i=-9
amp=320,step=32,adc_mean_i=102
amp=352,step=16,adc_mean_i=169
amp=368,step=8,adc_mean_i=204
tosdac_i=33,tosdac_q=33,tx_iq_gain_comp=1034,tx_iq_phase_comp=-11
tosdac_i=33,tosdac_q=32,tx_iq_gain_comp=1038,tx_iq_phase_comp=-7
tosdac_i=32,tosdac_q=32,tx_iq_gain_comp=1030,tx_iq_phase_comp=-10
tosdac_i=33,tosdac_q=35,tx_iq_gain_comp=1028,tx_iq_phase_comp=-11
tosdac_i=30,tosdac_q=38,tx_iq_gain_comp=1027,tx_iq_phase_comp=-11
tosdac_i=33,tosdac_q=35,tx_iq_gain_comp=1031,tx_iq_phase_comp=-13
tosdac_i=30,tosdac_q=30,tx_iq_gain_comp=1030,tx_iq_phase_comp=-8
tosdac_i=29,tosdac_q=29,tx_iq_gain_comp=1020,tx_iq_phase_comp=-12
[WF] [KEY] [CFG] nVAP is 2, endidx 12, startidx 8
td_init
td_reset idx=0
td_reset idx=1
Start Wi-Fi fw is Done @1043ms
[APP] [EVT] INIT DONE 986

[BL] Initi Wi-Fi with MAC #### C4:D7:FD:43:90:45 ####
hostname: OpenBL602_fd439045
[WF] country code CN used, num of channel 13
-----------------------------------------------------
[IPC] [TX] Low level size 204, driver size 100, total size 304
Enable BMX IRQ
[WF] [KEY] [CFG] nVAP is 2, endidx 12, startidx 8
td_init
td_reset idx=0
td_reset idx=1
[version] lmac 5.4.0.0
[version] version_machw_1 000055FB
[version] version_machw_2 000001B3
[version] version_phy_1 00822111
[version] version_phy_2 00000000
[version] features 001089DF
[ME] HT supp 1, VHT supp 0
[WF][SM] reload tsen
[WF][SM] Exiting ifaceDown state
[WF][SM] State Action ###ifaceDown### --->>> ###idle###
[WF][SM] Entering idle state
[APP] [EVT] MGMR DONE 1003, now 1062ms
OpenBL602, version bl602_ir_9f263cba4454
Entering initLog()...
Commands registered!
initLog() done!
[MTD] >>>>>> Hanlde info Dump >>>>>>
name PSM
id 0
offset 0x000e9000(954368)
size 0x00008000(32Kbytes)
xip_addr 0x230d8000
[MTD] <<<<<< Hanlde info End <<<<<<
[EF] Found Valid PSM partition, XIP Addr 230d8000, flash addr 000e9000, size 32768
ENV AREA SIZE 32768, SECTOR NUM 8
*default_env_size = 0x00000001
EasyFlash V4.0.99 is initialize success.
You can get the latest version on https://github.com/armink/EasyFlash .
[ 1493][WARN : bl_mtd.c: 205] addr@0x230a1f10 is xip flash, size 8
[ 1509][WARN : bl_mtd.c: 205] addr@0x230a1dec is xip flash, size 7
[MTD] >>>>>> Hanlde info Dump >>>>>>
name media
id 0
offset 0x000e7000(946176)
size 0x00002000(8Kbytes)
xip_addr 0x230d6000
[MTD] <<<<<< Hanlde info End <<<<<<
Main_Init_Before_Delay done
Main_Init_Delay
Main_Init_Delay done
Info:MAIN:Main_Init_Before_Delay
Warn:CFG:CFG_InitAndLoad: Config crc or ident mismatch. Default config will be loaded.
Info:CFG:CFG_SetDefaultLEDCorrectionTable: setting defaults
Error:CMD:lfs is absent
Info:GEN:PIN_SetupPins pins have been set up.
Info:MAIN:Main_Init_Before_Delay done
Info:MAIN:Main_Init_Delay
Info:MAIN:Main_Init_Delay done
Info:MAIN:Main_Init_After_Delay
Info:MAIN:Using SSID []
Info:MAIN:Using Pass []
Error:HTTP:Created HTTP SV thread with (stack=2048)
Info:MQTT:MQTT_RegisterCallback called for bT oblFD439045/ subT oblFD439045/+/set
Info:MQTT:MQTT_RegisterCallback called for bT bl602s/ subT bl602s/+/set
Info:MQTT:MQTT_RegisterCallback called for bT cmnd/oblFD439045/ subT cmnd/oblFD439045/+
Info:MQTT:MQTT_RegisterCallback called for bT cmnd/bl602s/ subT cmnd/bl602s/+
Info:MQTT:MQTT_RegisterCallback called for bT oblFD439045/ subT oblFD439045/+/get
Info:CMD:CMD_StartScript: started @startup at the beginning
Error:CMD:LFS_ReadFile: lfs is absent
Info:CMD:CMD_StartScript: failed to get file autoexec.bat
Info:MAIN:Main_Init_After_Delay done
[ 2552][WARN : bl_mtd.c: 205] addr@0x230a1dec is xip flash, size 7
Info:MAIN:Time 1, idle 0/s, free 107952, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 2, idle 0/s, free 107952, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 3, idle 0/s, free 107952, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 4, idle 0/s, free 107952, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
[lwip] netif status callback
IP: 192.168.11.1
MK: 255.255.255.0
GW: 0.0.0.0
[WF] MM_ADD_IF_REQ Sending: AP
td_start idx=0
[WF] MM_ADD_IF_REQ Done
[WF] vif_index from LAMC is 0
[lwip] netif status callback
IP: 192.168.4.1
MK: 255.255.255.0
GW: 0.0.0.0
[DHCP] ip_start: [192.168.4.2]
[DHCP] ip_start: [192.168.4.254]
[WF][SM] start AP with ssid OpenBL602_FD439045;
[WF][SM] pwd ;
[WF][SM] channel 1;
[WF] APM_START_REQ Sending with vif_index 0
[WF] received APM Start apm_start_req_handler:74
[WF] return with other handler
[WF] APM_START_REQ Done
[WF] status is 00
[WF] vif_idx is 00
[WF] ch_idx is 00
[WF] bcmc_idx is 05
[WF][SM] stateGlobalGuard_AP: AP iface has started!
Info:MAIN:Time 5, idle 0/s, free 107952, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks [APP] [EVT] Unknown code 11, 6596
2/21
[ 7601][WARN : bl_mtd.c: 205] addr@0x230a1f10 is xip flash, size 8
Info:MAIN:Time 6, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Boot complete time reached (5 seconds)
Info:MAIN:Time 7, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 8, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 9, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 10, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 11, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 12, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 13, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 14, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21
Info:MAIN:Time 15, idle 0/s, free 107640, MQTT 0(0), bWifi 0, secondsWithNoPing -1, socks 2/21

DS1820 and CHT8310 OK
Helpful post

#130 21726256 20 Oct 2025 18:57

divadiow divadiow

Level 37

Topic author Helpful post? (+1)

Helpful post
Post #130
21726256 20 Oct 2025 18:57

divadiow wrote:
ffs 👿. lol. that's the end of that 1mb module now. tried old fake Prolific TTL that must been labelled wrong (I think I remember it killing something before - BINNED NOW) and now she's pulling an unhealthy load and burning hot. good excuse to order another CozyLife DS-1211AN

yay but, cozylife-1 vs dead one = cozylife-3. hope it's 1mb still.
#131 21798424 04 Jan 2026 13:55

vinibali vinibali

Level 8

Helpful post? (0)

Post #131
21798424 04 Jan 2026 13:55

Are we already using 1 MB as the default flash size? I couldn't figure out where can I find the latest binaries for BL602L10.
#132 21798426 04 Jan 2026 13:56

divadiow divadiow

Level 37

Topic author Helpful post? (0)

Post #132
21798426 04 Jan 2026 13:56

the release for 2mb now works on 1mb too, so you should just be able to flash standard OpenBL602
#133 21798435 04 Jan 2026 14:00

vinibali vinibali

Level 8

Helpful post? (0)

Post #133
21798435 04 Jan 2026 14:00

>>21798426 Thanks for the update!
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Install Elektroda application

Topic summary

The discussion focuses on the Cozylife DS-1211AN 3-gang touch wall switch featuring a 1MB BL602L10 Wi-Fi and BLE module, manufactured by Shenzhen Dianling Intelligent Technology Co Ltd. The main challenge is adapting OpenBeken/OpenBL602 firmware, which typically targets 2MB flash BL602 chips, to the 1MB flash variant, as standard builds and tools like OpenBeken do not natively support 1MB BL602L10 devices. Key technical issues include flash memory partitioning, bootloader compatibility, EasyFlash storage initialization, and power supply stability affecting boot loops and Wi-Fi connectivity.

Significant progress was made by creating and testing custom partition table (TOML) files tailored for 1MB flash layouts, notably the partition_cfg_1M_miegapele.toml, which allocates appropriate sizes for firmware, media, PSM, and factory partitions. Firmware builds with specific SDK configurations (e.g., CONFIG_BL602_USE_1M_FLASH and CONFIG_BL602_USE_ROM_DRIVER enabled) successfully boot and run on the 1MB BL602L10, including OpenBK7231T_App builds from GitHub pull requests #1532 and #1534.

Power supply quality and wiring (shorter VCC and ground cables, decoupling capacitors) were critical for stable operation, as the module exhibited boot looping and Wi-Fi instability when powered inadequately or with noisy sources. The GPIO17 pin usage and UART download mode resistor requirements were also discussed for module replacement or debugging.

Wi-Fi connection issues were partially resolved by adjusting router PMF (Protected Management Frames) settings and using simpler passwords. The firmware supports AP mode and basic Wi-Fi functions, though some web API endpoints (e.g., /api/lfs) may be incomplete. The community shared detailed boot logs, flash memory dumps, and PCB images to aid development and testing.

Overall, the topic demonstrates successful adaptation of OpenBL602 firmware to the 1MB BL602L10 module in the Cozylife DS-1211AN switch, with custom partitioning, SDK flags, and power considerations enabling stable boot and Wi-Fi operation, while highlighting ongoing challenges in full feature support and stability.
Summary generated by the language model.

FAQ

TL;DR: 1 MB BL602L10 modules run OpenBeken after setting CONFIG_BL602_USE_1M_FLASH=1, growing PSM to 32 KB and flashing a 793 kB image—"works on every sample we had" [Elektroda, miegapele, post #21438533] Why it matters: you can free cheap touch-switches and sensors from cloud lock-in with one flash.

Quick Facts

• Flash size: 1 MB (0x100000) [Elektroda, divadiow, post #21301826]
• Working firmware: OpenBL602_1M build 793 kB [Elektroda, maxim2002, post #21438474]
• Required PSM partition: 32 KB @ 0x0F4000 [Elektroda, miegapele, post #21442160]
• Supply voltage: 3.3 – 3.6 V; keep GND & VCC leads < 5 cm [Elektroda, divadiow, post #21434069]
• Typical flash time via DevCube 2 Mbaud: 16–18 s [Elektroda, niterian, post #21456497]

What change finally made 1 MB BL602L10 boot OpenBeken?

Defining CONFIG_BL602_USE_1M_FLASH := 1 switches the SDK to the alternate XIP flash routine (XIP_SFlash_Read_Need_Lock_Ext). This prevents EasyFlash from hanging at 0xE9000 and lets the board reach Wi-Fi initialisation [Elektroda, maxim2002, post #21438533]

Which partition table should I flash?

Use the 1 MB TOML posted by @miegapele: 64 KB boot+PT, 912 KB FW (0x010000-0x0F3FFF), 32 KB PSM (0x0F4000-0x0F7FFF), 16 KB factory DTB (0x0FC000). 8 KB PSM from the stock 1 MB table is too small and corrupts config saves [Elektroda, miegapele, post #21440834]

Why does the board reboot when I save Wi-Fi?

If PSM is only 8 KB the 3.6 KB config plus garbage–collection fills the sector, EasyFlash triggers GC every save and the watchdog resets. Expanding PSM to 32 KB fixes the loop [Elektroda, maxim2002, post #21438474]

How do I enter UART-download mode safely?

Hold IO8 high through a 10 kΩ pull-up to 3.3 V. 2. Reset or power-cycle. 3. Release after handshake. Direct 3.3 V without resistor may destroy the internal pull-up; one user measured 133 Ω to GND after such short [Elektroda, chemik_16, post #21440354]

What’s the preferred flashing procedure?

Pick DevCube 1.9.0, 2 Mbaud, 40 MHz clock. 2. Select the 1 MB TOML and the 1 MB OpenBL602 build (whole_img.bin & ro_params.dtb). 3. Erase, program, verify (≈17 s total). Verified SHA equals host value means success [Elektroda, niterian, post #21456497]

My module boots but loops every 3 s—why?

Long, thin supply leads add >100 mV drop during Wi-Fi TX. Shorten VCC/GND to <5 cm or power the module in-circuit. After trimming leads one tester eliminated the loop at 3.55 V [Elektroda, divadiow, post #21434069]

Does deep-sleep work on BL602?

Normal DeepSleep works; PinDeepSleep is not yet ported (available only for BK and XR chips) [Elektroda, insmod, post #21598541] Battery sensors such as TH01 will therefore drain faster than with XR modules.

Open Wi-Fi network won’t connect—edge case?

Yes. Current SDK refuses open (unencrypted) APs; WPA2-PSK connects reliably when 802.11w PMF is “Optional” [Elektroda, maxim2002, post #21441931]

Can I flash 1 MB firmware to a 2 MB module?

Yes. The 1 MB image boots fine on 2 MB BL602; the unused upper flash stays blank. OTA partition is omitted, so remote upgrade is disabled [Elektroda, miegapele, post #21440834]

How much free RAM remains after boot?

With full 1 MB build and Wi-Fi connected the board reports ~113 kB free; worst-case after WebApp stress it dipped to 18 kB before recovery [Elektroda, maxim2002, post #21441931]

Which devices are confirmed to work?

• Cozylife DS-1211AN 3-gang touch switch (replaced DT-BL12) [Elektroda, divadiow, post #21301826] • RGBCWW 18 W E27 bulb with BL602L10 (product p93sfg) [Elektroda, niterian, post #21456497]

‘No enough DESC 2(7)’ appears in log—danger?

It indicates the Wi-Fi driver ran out of TX descriptors during heavy HTTP polling; the stack recovers automatically but may drop the TCP connection [Elektroda, maxim2002, post #21441931] Keep polling intervals >100 ms.

How can I cut heat in the 18 W bulb?

Limit PWM brightness to 90 %. “Even at 90 % the RGBCWW bulb is visually identical but 8 °C cooler” [Elektroda, p.kaczmarek2, post #21599155] Add LED_Map 0 90 in autoexec.

Steps to build your own 1 MB image?

Checkout OpenBeken dev branch and Bouffalo SDK 1.6.39. 2. In proj_config.mk set CONFIG_BL602_USE_1M_FLASH=1. 3. Place the 1 MB TOML in partition. Compile with make BL602L10_1M. Output should be ~793 kB [Elektroda, miegapele, post #21438328]