Release V4.0.2.5

V4.0.2.5(PR)

Version

• SDK version: tc_ble_sdk_V4.0.2.5
• Chip Version
  • B85: TLSR825X
  • B87: TLSR827X
  • TC321X (A0/A1/B0)
  • TC123X (A0)
• Hardware Version
  • B85: C1T139A30_V1_2, C1T139A3_V2_0
  • B87: C1T197A30_V1_1, C1T201A3_V1_0
  • TC321X: C1T357A20_V1_1, C1T362A5_V1_0, C1T357A78_V1_0, C1T357A20_V2_1
  • TC123X: C1T414A20_V1_1
• Platform Version
  • tc_platform_sdk V3.5.2
• Toolchain Version
  • TC32 ELF GCC4.3 ( IDE: Telink IoT Studio )

Note

• N/A

Features

• calibration
  • (TC123X): Add logic to read calibration values and IEEE address from the 256KB Flash.

Bug Fixes

• watchdog
  • (TC123X): Fixed an issue where the 32k watchdog reset time could be shorter than the configured interval due to hardware inaccuracies:
    • Detailed description: To ensure that the watchdog reset time never falls below the set interval, software compensation has been introduced by adding a maximum allowable timing error as an offset during interval configuration.
    • Fixing effect: The 32k watchdog reset time will never be less than the configured interval.
    • Update suggestion: Using the watchdog must be updated.

Refactoring

• pm
  • (TC321X): The pm_set_power_mode interface is not publicly available, removed the interface declaration.
• rf
  • (TC321X): Optimize RF‑related configurations to improve communication stability.

BREAKING CHANGES

• N/A

CodeSize

• B85

reference design	Firmware size (kBytes)	SRAM size (kBytes)	deepsleep retention SRAM size (kBytes)
acl_peripheral_demo	83.5	32.5	28.9
acl_central_demo	74.1	37.3	/
acl_connection_demo	89.2	43.6	/
acl_c1p1_demo	95.4	34.3	30.3

• B87

reference design	Firmware size (kBytes)	SRAM size (kBytes)	deepsleep retention SRAM size (kBytes)
acl_peripheral_demo	82.9	32	28.5
acl_central_demo	75.3	37.5	/
acl_connection_demo	91.6	44.6	/
acl_c1p1_demo	96.3	35.3	31.2

• TC321X

reference design	Firmware size (kBytes)	SRAM size (kBytes)	deepsleep retention SRAM size (kBytes)
acl_peripheral_demo	91.6	34.6	31.3
acl_central_demo	84.5	41.1	/
acl_connection_demo	100.3	47.6	/
acl_c1p1_demo	105.1	37.9	33.9
ble_remote	107.2	42.4	37.5
eslp_esl_demo	162.6	49.2	45.4

• TC123X

reference design	Firmware size (kBytes)	SRAM size (kBytes)	deepsleep retention SRAM size (kBytes)
acl_peripheral_demo	82.5	33.6	30.3
acl_central_demo	75.4	40.1	/
acl_connection_demo	90.9	46.4	/
acl_c1p1_demo	96.0	37.0	32.9

Version

• SDK 版本: tc_ble_sdk_V4.0.2.5
• Chip 版本
  • B85: TLSR825X
  • B87: TLSR827X
  • TC321X (A0/A1/B0)
  • TC123X (A0)
• Hardware 版本
  • B85: C1T139A30_V1_2, C1T139A3_V2_0
  • B87: C1T197A30_V1_1, C1T201A3_V1_0
  • TC321X: C1T357A20_V1_1, C1T362A5_V1_0, C1T357A78_V1_0, C1T357A20_V2_1
  • TC123X: C1T414A20_V1_1
• Platform 版本
  • tc_platform_sdk V3.5.2
• Toolchain 版本
  • TC32 ELF GCC4.3 ( IDE: Telink IoT Studio )

Note

• N/A

Features

• calibration
  • (TC123X)：增加从 256K 容量的 flash 中读取校准值和 ieee 地址值的逻辑。

Bug Fixes

• watchdog
  • (TC123X)：修复了 32k watchdog 因硬件误差导致复位时间可能小于设置时间的问题：
    • 详细描述：为了保证在设置 interval 时，watchdog 的复位时间不会小于设置时间，在设置 interval 时，软件上增加了最大的时间误差，作为补偿值。
    • 修复效果：32k watchdog 复位时间永远不会小于设置时间。
    • 更新建议：使用 watchdog 必须更新。

Refactoring

• pm
  • (TC321X)：pm_set_power_mode 接口不对外开放，删掉接口声明。
• rf
  • (TC321X)：优化RF相关配置，提高通信稳定性。

BREAKING CHANGES

• N/A

CodeSize

• B85

reference design	Firmware size (kBytes)	SRAM size (kBytes)	deepsleep retention SRAM size (kBytes)
acl_peripheral_demo	83.5	32.5	28.9
acl_central_demo	74.1	37.3	/
acl_connection_demo	89.2	43.6	/
acl_c1p1_demo	95.4	34.3	30.3

• B87

reference design	Firmware size (kBytes)	SRAM size (kBytes)	deepsleep retention SRAM size (kBytes)
acl_peripheral_demo	82.9	32	28.5
acl_central_demo	75.3	37.5	/
acl_connection_demo	91.6	44.6	/
acl_c1p1_demo	96.3	35.3	31.2

• TC321X

reference design	Firmware size (kBytes)	SRAM size (kBytes)	deepsleep retention SRAM size (kBytes)
acl_peripheral_demo	91.6	34.6	31.3
acl_central_demo	84.5	41.1	/
acl_connection_demo	100.3	47.6	/
acl_c1p1_demo	105.1	37.9	33.9
ble_remote	107.2	42.4	37.5
eslp_esl_demo	162.6	49.2	45.4

• TC123X

reference design	Firmware size (kBytes)	SRAM size (kBytes)	deepsleep retention SRAM size (kBytes)
acl_peripheral_demo	82.5	33.6	30.3
acl_central_demo	75.4	40.1	/
acl_connection_demo	90.9	46.4	/
acl_c1p1_demo	96.0	37.0	32.9