SPI主从模式,蓝牙扫描后6秒钟左右自动停止

您好：
我们移植了SDK5.0.4中SPI主从模式的接近工程。在HadleGapmCmpEvt收到GAPM_SET_DEV_CONFIG回应后开启扫描。能够正常扫描到周围设备的广播包。但是扫描过程只持续了6 s左右,就收到了扫描结束的消息,错误码0 x45 GAP_ERR_TIMEOUT。如下是扫描的日志和扫描的参数。请问要如何修改才能保持长时间持续扫描，谢谢！

struct *msg = blmsgalloc (GAPM_START_SCAN_CMD, TASK_GAPM, TASK_GTL，)
sizeof (struct gapm_start_scan_cmd));
味精- >模式= GAP_GEN_DISCOVERY;
味精- > op。代码= GAPM_SCAN_PASSIVE; / / GAPM_SCAN_ACTIVE;
味精- > op。addr_src = GAPM_PUBLIC_ADDR;
味精- > filter_duplic = SCAN_FILT_DUPLIC_EN;
味精- >间隔= 10;
味精- >窗口= 5;
/ /味精- >操作= GAPM_RESET;
味精- > filt_policy = SCAN_ALLOW_ADV_ALL;
味精- > filter_duplic = SCAN_FILT_DUPLIC_EN;

BleSendMsg(味精);

系统:1
HandleBleMsg: 3401
HCI味精2 spi 3402
spi2_send_hci_msg
HandleBleMsg: 3400
HadleGapmCmpEvt: 1 [0]
app_proxr_db_create
HCI味精2 spi 4003
spi2_send_hci_msg
HandleBleMsg: 4004
app_set_mode
HCI味精2 spi 3404
spi2_send_hci_msg
HandleBleMsg: 3400
HadleGapmCmpEvt: 3 [0]
app_start_scan_gap
味精- > op。代码= 10
HCI味精2 spi 340f
spi2_send_hci_msg
HandleBleMsg: 3410
ADDR16:15:14
RSSI45
HandleBleMsg: 3410
ADDR16:15:14
RSSI49
HandleBleMsg: 3410
ADDR16:15:14
RSSI44
HandleBleMsg: 3410
ADDR16:15:14
RSSI3a
HandleBleMsg: 3400
HadleGapmCmpEvt: 10 [45]