salihonur
Joined: 21 Mar 2020
Posts: 22
|
| PIC24FJ256GB106 receives TCP data wrong |
 Posted: Tue Dec 07, 2021 5:23 pm |
 |
|
Hi guys,
I'm having a problem receiving TCP data on PIC24FJ256. However, Modbus TCP works fine. TCP data comes with strange data in 16 bits.
Transmitting data size is 19 bytes, allocated buffer in PIC 32 bytes.
Please help me to solve this issue.
Transmitting data from the client:
| Code: |
[tcp] Tx Data >> 21 AA BB 00 01 01 09 00 00 53 61 6C 69 68 4F 6E 75 72 59 20
[TCP] Package size: 19 bytes
|
Receiving data (PIC24FJ):
| Code: |
{tcp] RX << AA21 BB 11 09 530 6C61 6869 6E4F 7275 2059 00 00 00 00 00 00 14 20 6374 5D70 5220 2058 3C3C 20 16CA 16AA 00 00 00 00 00 00
|
TCP/IP configuration:
| Code: |
#define TCP_ETH_RAM_SIZE (STACK_CCS_SMTP_TX_SIZE + \
STACK_CCS_SMTP_RX_SIZE + \
STACK_CCS_HTTP2_SERVER_TX_SIZE + \
STACK_CCS_HTTP2_SERVER_RX_SIZE + \
STACK_MY_TELNET_SERVER_TX_SIZE + \
STACK_MY_TELNET_SERVER_RX_SIZE + \
STACK_MY_HTTPC_TX_SIZE + \
STACK_MY_HTTPC_RX_SIZE + \
1500) // 100*TCP_CONFIGURATION)
#if TCP_CONFIGURATION > 0
TCPSocketInitializer_t TCPSocketInitializer[TCP_CONFIGURATION] =
{
#if defined(STACK_USE_CCS_HTTP2_SERVER)
{TCP_PURPOSE_HTTP_SERVER, TCP_ETH_RAM, STACK_CCS_HTTP2_SERVER_TX_SIZE, STACK_CCS_HTTP2_SERVER_RX_SIZE},
#endif
#if defined(STACK_USE_SMTP_CLIENT)
{TCP_PURPOSE_DEFAULT, TCP_ETH_RAM, STACK_CCS_SMTP_TX_SIZE, STACK_CCS_SMTP_RX_SIZE},
#endif
#if defined(STACK_USE_MY_TELNET_SERVER)
{TCP_PURPOSE_TELNET, TCP_ETH_RAM, STACK_MY_TELNET_SERVER_TX_SIZE, STACK_MY_TELNET_SERVER_RX_SIZE},
#endif
#if defined(STACK_USE_CCS_HTTP_CLIENT)
{TCP_PURPOSE_GENERIC_TCP_CLIENT, TCP_ETH_RAM, STACK_MY_HTTPC_TX_SIZE, STACK_MY_HTTPC_RX_SIZE},
#endif
{TCP_PURPOSE_NGR_TCP_SERVER, TCP_ETH_RAM, 32, 32},
};
#else
#undef TCP_CONFIGURATION
#define TCP_CONFIGURATION 1
TCPSocketInitializer_t TCPSocketInitializer[TCP_CONFIGURATION] =
{
{TCP_PURPOSE_DEFAULT, TCP_ETH_RAM, 250, 250}
};
#endif
|
Server opening code:
| Code: |
socket[i] = TCPOpen(NULL, TCP_OPEN_SERVER, NETWORK.port_tcp_server.d, TCP_PURPOSE_NGR_TCP_SERVER); |
Tcp connected task:
| Code: | int8 tcp_connected_task(TCP_SOCKET socket, int8 which)
{
int1 disconnect = FALSE;
BYTE tcp_reply_str[TCP_BUFFER_SIZE];
BYTE tcp_str[TCP_BUFFER_SIZE];
if (TCPIsGetReady(socket))
{
// TCP verisi aliniyor -------------------------------------------------
int16 i=0;
char c;
while (TCPGet(socket, &c))
{
if( i < TCP_BUFFER_SIZE )
tcp_str[i++]=c;
}
debug_write("\r{tcp] RX << ");
debug_bytes_in_hex(tcp_str, TCP_BUFFER_SIZE);
debug_writeln(" ");
ngr_parse(tcp_str, tcp_reply_str);
/*debug_write("[tcp] TX >> ");
debug_bytes_in_hex(tcp_reply_str, TCP_BUFFER_SIZE);
debug_writeln(" ");*/
// Cevap gonder --------------------------------------------------------
TCPPutArray(socket, tcp_reply_str, TCP_BUFFER_SIZE);
TCPFlush(socket);
}
return disconnect;
} |
And also I have checked the transmitted data with Hercules if correct.
Board: PIC24FJ256GB106 + ENC28J60
TCP/IP Stack version: 5.42
Compiler version: 5.092
OS: Windows 11
_________________
Compiler v5.091+ Windows 10 |
|
FAQ 
Search
Register
Profile 
Log in to check your private messages 
Log in
