准备需要加入DFU功能的工程
在工程main文件services_init函数中加入DFU服务
1 uint32_t err_code; 2 3 // Initialize the async SVCI interface to bootloader. 4 err_code = ble_dfu_buttonless_async_svci_init(); 5 //APP_ERROR_CHECK(err_code); 6 if(NRF_ERROR_NO_MEM != err_code) 7 { 8 ble_dfu_buttonless_init_t dfus_init = 9 { 10 .evt_handler = ble_dfu_evt_handler 11 }; 12 13 err_code = ble_dfu_buttonless_init(&dfus_init); 14 APP_ERROR_CHECK(err_code); 15 }
加入DFU事件处理函数
1 // YOUR_JOB: Update this code if you want to do anything given a DFU event (optional). 2 /**@brief Function for handling dfu events from the Buttonless Secure DFU service 3 * 4 * @param[in] event Event from the Buttonless Secure DFU service. 5 */ 6 static void ble_dfu_evt_handler(ble_dfu_buttonless_evt_type_t event) 7 { 8 switch (event) 9 { 10 case BLE_DFU_EVT_BOOTLOADER_ENTER_PREPARE: 11 NRF_LOG_INFO("Device is preparing to enter bootloader mode."); 12 // YOUR_JOB: Disconnect all bonded devices that currently are connected. 13 // This is required to receive a service changed indication 14 // on bootup after a successful (or aborted) Device Firmware Update. 15 break; 16 17 case BLE_DFU_EVT_BOOTLOADER_ENTER: 18 // YOUR_JOB: Write app-specific unwritten data to FLASH, control finalization of this 19 // by delaying reset by reporting false in app_shutdown_handler 20 NRF_LOG_INFO("Device will enter bootloader mode."); 21 break; 22 23 case BLE_DFU_EVT_BOOTLOADER_ENTER_FAILED: 24 NRF_LOG_ERROR("Request to enter bootloader mode failed asynchroneously."); 25 // YOUR_JOB: Take corrective measures to resolve the issue 26 // like calling APP_ERROR_CHECK to reset the device. 27 break; 28 29 case BLE_DFU_EVT_RESPONSE_SEND_ERROR: 30 NRF_LOG_ERROR("Request to send a response to client failed."); 31 // YOUR_JOB: Take corrective measures to resolve the issue 32 // like calling APP_ERROR_CHECK to reset the device. 33 APP_ERROR_CHECK(false); 34 break; 35 36 default: 37 NRF_LOG_ERROR("Unknown event from ble_dfu_buttonless."); 38 break; 39 } 40 }
加入几个必要的文件到工程
SDK_14.2.0工程componentslele_servicesle_dfu下的
SDK_14.2.0工程componentslibrariesootloaderdfu下的
并加入以下头文件路径
SDK_14.2.0工程componentslibrariesootloaderdfu
SDK_14.2.0工程componentslibrariessvc
Main.c 头文件中加入
#include "ble_dfu.h"
记得修改sdk_config.h中NRF_SDH_BLE_VS_UUID_COUNT
1 // <o> NRF_SDH_BLE_VS_UUID_COUNT - The number of vendor-specific UUIDs. 2 #ifndef NRF_SDH_BLE_VS_UUID_COUNT 3 #define NRF_SDH_BLE_VS_UUID_COUNT 1 //默认为0 4 #endif
开启RTT打印LOG
1 //========================================================== 2 // <e> NRF_LOG_ENABLED - Logging module for nRF5 SDK 3 //========================================================== 4 #ifndef NRF_LOG_ENABLED 5 #define NRF_LOG_ENABLED 1 6 #endif
以及
1 //========================================================== 2 // <e> NRF_LOG_BACKEND_RTT_ENABLED - nrf_log_backend_rtt - Log RTT backend 3 //========================================================== 4 #ifndef NRF_LOG_BACKEND_RTT_ENABLED 5 #define NRF_LOG_BACKEND_RTT_ENABLED 1 6 #endif
编译一下，下载观察RTT信息修改RAM地址，再次编译后没有问题，就可以用新生成的hex文件来制作升级zip了。