CSR8670底层是如何实现多个字节数据的接受
最近用CSR8670的BLE进行数据传输，移植的使用的HRS的Srever库。HRS里的数据接受好像是2个字节长度的，如果我现在需要通过手机向这个服务发送一个长达20个字节的数据，CSR8670这端是如何实现的呢，请教一下这段代码是处理手机端发过来的数据的
static void hrServerClientConfigAccess(GHRS_T *hr_sensor, const GATT_MANAGER_SERVER_ACCESS_IND_T *access_ind)
{
if (access_ind->flags & ATT_ACCESS_READ)
{
/* On a Read, ask the app for current client config value */
MAKE_HR_SERVER_MESSAGE(GATT_HR_SERVER_READ_CLIENT_CONFIG_IND);
message->hr_sensor = hr_sensor; /* Pass the instance which can be returned in the response */
message->cid = access_ind->cid; /* Pass the CID so the client can be identified */
MessageSend(hr_sensor->app_task, GATT_HR_SERVER_READ_CLIENT_CONFIG_IND, message);
}
else if (access_ind->flags & ATT_ACCESS_WRITE)
{
if (access_ind->size_value == GATT_CLIENT_CONFIG_NUM_OCTETS)
{
/* On a Write, send new client config value to the app */
MAKE_HR_SERVER_MESSAGE(GATT_HR_SERVER_WRITE_CLIENT_CONFIG_IND);
message->hr_sensor = hr_sensor;
message->cid = access_ind->cid;
<font color="Red">message->config_value = (access_ind->value & 0xFF) | ((access_ind->value << 8) & 0xFF00);</font>
MessageSend(hr_sensor->app_task, GATT_HR_SERVER_WRITE_CLIENT_CONFIG_IND, message);
/* Library response to the access request */
sendHrServerAccessRsp(&hr_sensor->lib_task, access_ind->cid, HANDLE_HEART_RATE_MEASUREMENT_CLIENT_CONFIG, gatt_status_success, 0, NULL);
}
else
{
sendHrServerAccessErrorRsp(hr_sensor, access_ind, gatt_status_invalid_length);
}
}
else
{
/* Reject access requests that aren't read/write, which shouldn't happen. */
sendHrServerAccessErrorRsp(hr_sensor, access_ind, gatt_status_request_not_supported);
}
}access_ind变量是GATT_MANAGER_SERVER_ACCESS_IND_T类型的
typedef GATT_ACCESS_IND_T GATT_MANAGER_SERVER_ACCESS_IND_T;GATT_ACCESS_IND_T这个类型的申明是uint8 value，这里value只有一个成员的空间，但是在处理的时候确有两个成员，见前面代码标红处，请问是不收到20个字节的数据也是这样处理typedef struct
{
/*! Connection identifier of remote device. */
uint16 cid;
/*! Handle being accessed. */
uint16 handle;
/*! Flags - uses ATT_ACCESS range. */
uint16 flags;
/*! The offset of the first octet to be accessed. */
uint16 offset;
/*! Length of the value. */
uint16 size_value;
/*! Value data. */
uint8 value;
} GATT_ACCESS_IND_T;
access_ind->value ,,,这个value是指针来的，这里可以传很多数据，不只两个。
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