Hi,
I'm working on a platform w/ K66 as MCU and a GS2K device for WiFi connectiovity. Data, events and responses to commands are received in the K66 via UART. A driver parses the received buffer and forwards to RTCS/application.
It happens that the WiFi driver fails to identify events or responds. I added some debug info and it appears that strstr fails to detect strings in the received buffer.
Please find below the received buffer which was printed to log when a response was expected but driver failed to detect it.
buffer size is 106
10 13 10 58 106 49 188 67 1 16 0 1 0 0 0 0 0 0 32 70 72 70 65 69 66 69 69 67 65 67 65 67 65 67 65 67 65 67 65 67 65 67 65 67 65 67 65 67 65 65 65 0 0 32 0 1 65 84 43 87 82 83 83 73 61 63 13 13 10 45 50 50 13 10 79 75 13 10 10 13 10 65 84 43 87 82 83 83 73 61 63 13 13 10 45 50 50 13 10 79 75 13 10 10 13 10
The string I'm looking for is in the middle of the second line:
65 84 43 87 82 83 83 73 61 63 13 13 10 45 50 50 = AT+WRSSI=?
and the code is:
// parse the response at set an integer w/ the result
p_rssi_response = strstr((const char*)cmdRspBuff,(const char*)"AT+WRSSI=?");
// if we got a valid response, parse it and set a decimal result on global DB
// otherwise, rssi is set to 0, indicating the vale is invalid.
if (NULL != p_rssi_response)
{
// Expected result is AT+WRSSI=?\r\r\n-63\r\nOK\r\n
// Jump over the command and point to the response
p_rssi_response += 14;
for(i=0;i<2;i++)
{
rssi = (rssi* 10) + (p_rssi_response[i]-'0');
}
}
GET_CUSTOM_CXT(priv)->rssi = -rssi;
GS_DEBUG_PRINT(1, "RSSI %d p_rssi_response 0x%x\n", rssi, p_rssi_response);
Any idea what might be wrong here?
Thanks,
Ariela
