btrfcomm.c 文件
rfcomm_input函数
1328行与1342行 对rfcommhdr.ctrl分支判断相同问题。
if(rfcommhdr.ctrl == RFCOMM_UIH)
{
if(pcb->cn == 0)
{
if(fcs != pcb->uih0_in_fcs) /* Check against the precalculated fcs /
{
//if(fcs8_crc_check(p, RFCOMM_UIHCRC_CHECK_LEN, fcs) != 0) {
/ Packet discarded due to failing frame check sequence /
BT_RFCOMM_TRACE_DEBUG("rfcomm_input: UIH packet discarded due to failing frame check sequence\n");
bt_pbuf_free(p);
return BT_ERR_OK;
}
}
}
else if(rfcommhdr.ctrl == RFCOMM_UIH)
{
if(fcs != pcb->uih_in_fcs) / Check against the precalculated fcs /
{
//if(fcs8_crc_check(p, RFCOMM_UIHCRC_CHECK_LEN, fcs) != 0) {
/ Packet discarded due to failing frame check sequence */
BT_RFCOMM_TRACE_DEBUG("rfcomm_input: UIH packet discarded due to failing frame check sequence\n");
bt_pbuf_free(p);
return BT_ERR_OK;
}
}

FrontLine / Ellisys 这两个软件的安装包谁可以发一下，谢谢。

1.HCI host -> controller flow control
2.HCI controller -> host flow control
3.RFCOMM C/R bit的理清
4. BT_STOP内存回收

默认BLE GAP Service中只有一个device name特性,于是我按照Battery Service添加了一个appearance。但是添加之后手机连接蓝牙显示GAP Service为空，也就是出错了。添加代码如下：

//------------------------bt_gatt.c--------------------------------------------------------
uint8_t gatt_gap_uuid[] = {BT_LE_U16_TO_ARRAY(BT_UUID_SERVCLASS_GAP_SERVER)};
uint8_t gatt_gap_characteristic[] = {GATT_CHAR_PROP_BIT_READ,BT_LE_U16_TO_ARRAY(GATT_GAP_NAME_HANDLE),BT_LE_U16_TO_ARRAY(GATT_UUID_GAP_DEVICE_NAME)};

uint8_t gatt_gap_icon_characteristic[] = {GATT_CHAR_PROP_BIT_READ,BT_LE_U16_TO_ARRAY(GATT_GAP_ICON_HANDLE),BT_LE_U16_TO_ARRAY(GATT_UUID_GAP_ICON)};
uint8_t gatt_gap_appearance[] = {0,0};

gatt_server_service_t gap_service[] =
{
{ GATT_GAP_SERVICE_HANDLE,GATT_UUID_PRI_SERVICE,
gatt_gap_uuid,sizeof(gatt_gap_uuid),GATT_PERM_READ,NULL},

{ GATT_GAP_CHARACTERISTIC_HANDLE,GATT_UUID_CHAR_DECLARE,
	gatt_gap_characteristic,sizeof(gatt_gap_characteristic),GATT_PERM_READ,NULL},
	
{ GATT_GAP_NAME_HANDLE,GATT_UUID_GAP_DEVICE_NAME,
	(uint8_t*)GATT_GAP_NAME,sizeof(GATT_GAP_NAME),GATT_PERM_READ,NULL},
	
	{ GATT_GAP_ICON_CHARACTERISTIC_HANDLE,GATT_UUID_CHAR_DECLARE,
	gatt_gap_icon_characteristic,sizeof(gatt_gap_icon_characteristic),GATT_PERM_READ,NULL},
	 
	 { GATT_GAP_ICON_HANDLE,GATT_UUID_GAP_ICON,
		gatt_server_change,sizeof(gatt_server_change),GATT_PERM_READ,NULL},

};

err_t gatt_server_init(void)
{
gatt_server_add_pri_service(gap_service,GATT_GAP_SERVICE_HANDLE,GATT_GAP_ICON_HANDLE,sizeof(gap_service)/sizeof(gatt_server_service_t),BT_UUID_SERVCLASS_GAP_SERVER);
gatt_server_add_pri_service(gatt_service,GATT_SERVICE_HANLE,GATT_SRV_CHGD_CLIENT_CHARA_CONF_HANDLE,sizeof(gatt_service)/sizeof(gatt_server_service_t),BT_UUID_SERVCLASS_GATT_SERVER);

return BT_ERR_OK;

}
//--------------------------bt_config.h------------------------------------------------------
#define GATT_PRI_SERVICE_MAX_COUNT 15
#define GATT_BLE_MTU_SIZE 23
#define GATT_GAP_SERVICE_HANDLE 0x0001
#define GATT_GAP_CHARACTERISTIC_HANDLE 0x0002
#define GATT_GAP_NAME_HANDLE 0x0003
#define GATT_GAP_ICON_CHARACTERISTIC_HANDLE 0x0004
#define GATT_GAP_ICON_HANDLE 0x0005

#define GATT_SERVICE_HANLE 0x0006
#define GATT_SRV_CHGD_CHAR_HANDLE 0x0007
#define GATT_SERVICE_CHGD_HANLE 0x0008
#define GATT_SRV_CHGD_CLIENT_CHARA_CONF_HANDLE 0x0009

#define GATT_GAP_NAME BT_LOCAL_NAME
#define GATT_BAS_SERVICE_HANDLE 0x000A
#define GATT_BAS_CHARACTERISTIC_HANDLE 0x000B
#define GATT_BAS_LEVEL_HANDLE 0x000C
#define GATT_BAS_CLIENT_CHARA_CONF_HANDLE 0x000D

操作步骤：

1. 操作shell连接手机rfcomm，比如HFP
2. 操作shell断开，HFP断开失败

举例：
架设上层要发送超过HCI read buffer size event获取到的acl size
pcb->maxsize = *((uint16_t *)(((uint8_t *)p->payload)+1));

如何实现连接手机后，请求获取手机上的通话记录，联系人列表

Hello! 你好.

我最近在学习蓝牙协议栈SDP部分内容, 在和手机/耳机交互时, 发现A2DP下有一个AttributeID是0x0311, 我从官方文档中找不到对这个AttributeID的定义, 以及它在SDP发现服务中的具体作用?

您可以解答一下我这个疑惑吗?

void uart_bt_send(uint8_t buf, uint16_t len)
{
uint8_t index;
for (index = 0; index < len ; index++) {
/ Wait until the last send is complete, then send the data */
while (USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET);
USART_SendData(USART2, buf[index]);
}
while (USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET);
}

if len > 255, there will be a dead loop because index is uint8.

log.zip

1. init code优化
2. Command/event宏优化
3. hci event input优化，把每个event拉出函数，防止函数过长，不易查看
4. hci acl优化
5. 函数static优化