BLE-CC254x-1.4.0.zip_BLE-CC254x-1.4.0_C语言_ble协议栈_cc2541_蓝牙4.0协议

Texas Instruments, Inc. CC2540/41 Bluetooth Low Energy Software Development Kit Release Notes Version 1.4.0 November 8, 2013 Notices: - This version of the Texas Instruments BLE stack and software is a minor update to the v1.3.2 release. It contains some minor bug fixes and a few functional changes. - The BLE protocol stack, including both the controller and host, was completely retested for v1.4.0. Changes and Enhancements: - All projects have been migrated from IAR v8.10.4 to IAR 8.20.2. In order to build all projects, be sure to upgrade to IAR v8.20.2. - Updated SPI and UART_DMA drivers for improved robustness and throughput. - Added an overlapped processing feature to improve throughput and reduce power consumption in devices where peak power consumption isn't an issue. Overlapped processing allows the stack to concurrently process while the radio is active. Since the stack is concurrently processing, it is able to insert new data in the Tx buffer during the connection event, causing additional packets to be sent before the end of the event. - Added a Number of Completed Packets HCI command which offers the possibility of waiting for a certain number of completed packets before reporting to the host. This allows higher throughput when used with overlapped processing. - Added an HCI Extension command HCI_EXT_DelaySleepCmd which provides the user control of the system initialization sleep delay (wake time from PM3/boot before going back to sleep). The default sleep delay is based on the reference design 32 kHz XOSC stabilization time. - Added a low duty cycle directed advertising option. - Added support for deleting a single bond with the GAP_BondSetParam command. - Decreased CRC calculation time during OAD by using DMA. Bug Fixes: - Using a short connection interval and exercising high throughput, there was some loss of packets. This was fixed by adding host to application flow control support. - Bonding was unstable at short connection intervals. This is now fixed. - Fixed USB CDC Drivers to work with Windows 8. - OAD sample project would fail if long connection interval was used. This was fixed by not allowing parameter updates to the central device. - Fixed linking errors in UBL project. - Fixed minor issues in sample apps to work with PTS dongle. - Fixed USB descriptors in HostTestRelease to display correct string. Known Issues: - Use of the NV memory (to save application data or BLE Host bonding information) during a BLE connection may cause an unexpected disconnect. The likelihood of this happening increases with frequent usage, especially when using short connection intervals. The cause is related to the NV wear algorithm which at some point may cause an NV page erase which can disrupt system real-time processing. It is therefore recommended that the NV memory be used sparingly, or only when a connection is not active. - HCI packet size of 128 bytes or more will be disregarded by the stack, and as such, no HCI event will be returned. For technical support please visit the Texas Instruments Bluetooth low energy E2E Forum: http://e2e.ti.com/support/low_power_rf/f/538.aspx For additional sample applications, guides, and documentation, visit the Texas Instruments Bluetooth Low Energy wiki page at: http://processors.wiki.ti.com/index.php/Category:BluetoothLE ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- Version 1.3.2 June 13, 2013 Notices: - This version of the Texas Instruments BLE stack and software is a minor update to the v1.3.1 release. It contains some minor bug fixes and a few functional changes. - The BLE protocol stack, including both the controller and host, was completely retested for v1.3.2. The profiles Running Speed and Cadence, Cycling Speed and Cadence, and Glucose were fully tested and passed certification. Other profiles with no code changes since 1.3.1 were sanity tested only. Changes and Enhancements: - Added Running Speed and Cadence profile and service. An example application demonstrating running speed and cadence is provided. - Added Cycling Speed and Cadence profile and service. An example application demonstrating cycling speed and cadence is provided. - Added delay before performing Connection Parameter changes. Implemented conn_pause_peripheral) and TGAP(conn_pause_central) timers as described in CSA 3 rev 2, Gap Connection Parameters Changes, Section 1.12. Updated HIDAdvRemote, HIDEmuKbd, KeyFob, SensorTag, and SimpleBLEPeripheral applications. - Update Privacy Flag and Reconnection Address characteristics permissions (Erratum 4202) - A new Windows USB CDC driver has been included in the installer. This new driver is signed and is functional on Windows 8 systems. Bug Fixes: - Some minor updates to glucose sensor and collector were made. - The gyroscope would draw continuous 6mA when enabled. The updated code now performs a read and turns off the gyro after 60ms. - The master�s host would accept invalid connection parameters requested by the Slave, and would send back the Connection Parameter Update Response with �parameters accepted�. The host now performs validation on these parameters. - When coming out of sleep, the HCI_EXT_ExtendRfRangeCmd would override HCI_EXT_SetRxGainCmd setting and set it to default gain. This has been fixed. Known Issues: - Use of the NV memory (to save application data or BLE Host bonding information) during a BLE connection may cause an unexpected disconnect. The likelihood of this happening increases with frequent usage, especially when using short connection intervals. The cause is related to the NV wear algorithm which at some point may cause an NV page erase which can disrupt system real-time processing. It is therefore recommended that the NV memory be used sparingly, or only when a connection is not active. - HCI packet size of 128 bytes or more will be disregarded by the stack, and as such, no HCI event will be returned. - The HAL SPI driver that was implemented since the v1.3 release can sometimes hang, particularly in cases in which power management is used and when there is heavy traffic on the SPI bus. For technical support please visit the Texas Instruments Bluetooth low energy E2E Forum: http://e2e.ti.com/support/low_power_rf/f/538.aspx ------------------------------------------------------------------------------- ------------------------------------------------------------------------------- Version 1.3.1 April 18, 2013 Notices: - This version of the Texas Instruments BLE stack and software is a minor update to the v1.3 release. It contains some minor bug fixes, with no major functional changes. It also contains two additional projects for the CC2541 Advanced Remote Control Kit. - Since none of the profile source code was significantly changed since the v1.3 release, no additional re-testing of the profiles and sample application were done for v1.3.1. The only exception is the HID-over-GATT profile, which was fully re-tested for this release. The BLE protocol stack, including both the controller and host, was completely retested for v1.3.1. Major Changes and Enhancements: - The GAP parameter TGAP_LIM_ADV_TIMEOUT now uses units of seconds instead of milliseconds. - The HidAdvRemote Project has been added. This implements a full mouse-like pointing functionality using motion and gesture control. The project runs on the CC2541 BLE Advanced Control included as part of the CC2541DK-REMOTE kit. The application implements the HID-over-GATT (HOGP)