Chris Pepper
An example Program for the SimpleSerialProtocol Library, This program will receive a packet, then echo it back to the client
Dependencies: mbed SimpleSerialProtocol MODSERIAL
A simple example program that receives a packet over serial and echos it back.
I include this java program to show an example client application, all this program does is send packets as fast as it can without filling up its output buffer, the mbed will echo these packets back.
This is a good benchmark of the serial connection, and should show about 11KB/s at 115200baud
/media/uploads/p3p/serialecho.zip
example command: java -jar SerialEcho.jar com3 115200
Revision 11:a051c3f9ca6d, committed 2014-08-27
- Comitter:
- p3p
- Date:
- Wed Aug 27 18:05:51 2014 +0000
- Parent:
- 10:f6862abba2d5
- Child:
- 12:1d1d8425c79c
- Commit message:
- Simplified
Changed in this revision
--- a/MODSERIAL.lib Sun Jul 29 19:46:09 2012 +0000 +++ b/MODSERIAL.lib Wed Aug 27 18:05:51 2014 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/AjK/code/MODSERIAL/#5c45c21f36b7 +http://mbed.org/users/AjK/code/MODSERIAL/#ae0408ebdd68
--- a/SimpleSerialProtocol.lib Sun Jul 29 19:46:09 2012 +0000 +++ b/SimpleSerialProtocol.lib Wed Aug 27 18:05:51 2014 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/p3p/code/SimpleSerialProtocol/#1639507580d5 +http://mbed.org/users/p3p/code/SimpleSerialProtocol/#98ad30934a71
--- a/TestProtocol.cpp Sun Jul 29 19:46:09 2012 +0000
+++ b/TestProtocol.cpp Wed Aug 27 18:05:51 2014 +0000
@@ -1,6 +1,6 @@
#include "TestProtocol.h"
-void TestProtocol::onEchoPacket(SimpleSerialProtocol::Packet* packet){
+void TestProtocol::onEchoPacket(SimpleSerialProtocol::Protocol* comms, SimpleSerialProtocol::Packet* packet){
if(!packet)return;
if (packet->_valid) {
EchoPacket::Interface* interface = packet->interpretData<EchoPacket::Interface>();
@@ -9,18 +9,16 @@
temp1 = interface->datashort;
temp2 = interface->dataint;
temp3 = interface->datafloat;
- reply();
+
+ //we can use the Protocol pointer to send a response from the callback
+ EchoPacket echoMessage; // initialise a packet to send
+ echoMessage.interface.data = temp;
+ echoMessage.interface.datashort = temp1;
+ echoMessage.interface.dataint = temp2;
+ echoMessage.interface.datafloat = temp3;
+ echoMessage.buildData<EchoPacket::Interface>(&echoMessage.interface);
+ comms->sendPacket(&echoMessage); //send the packet (async)
}
}
return;
-}
-
-void TestProtocol::reply() {
- EchoPacket echoMessage; // initialise a packet to send
- echoMessage.interface.data = temp;
- echoMessage.interface.datashort = temp1;
- echoMessage.interface.dataint = temp2;
- echoMessage.interface.datafloat = temp3;
- echoMessage.buildData<EchoPacket::Interface>(&echoMessage.interface);
- sendPacket(&echoMessage); //send the packet (async)
}
\ No newline at end of file
--- a/TestProtocol.h Sun Jul 29 19:46:09 2012 +0000
+++ b/TestProtocol.h Wed Aug 27 18:05:51 2014 +0000
@@ -5,14 +5,16 @@
#include <SimpleSerialProtocol/Protocol.h>
//class will receive a packet and echo it back out
-class TestProtocol : public SimpleSerialProtocol::Protocol {
+class TestProtocol {
public:
- TestProtocol() : Protocol(USBTX, USBRX, LED1) { //LED1 to 4 for a status led, NC to disable
- receiveCallback(1, this, &TestProtocol::onEchoPacket);
+ TestProtocol() {
+ temp = 0;
+ temp1 = 0;
+ temp2 = 0;
+ temp3 = 0.0f;
}
virtual ~TestProtocol() {};
- void onEchoPacket(SimpleSerialProtocol::Packet* packet);
- void reply();
+ void onEchoPacket(SimpleSerialProtocol::Protocol* comms, SimpleSerialProtocol::Packet* packet);
class EchoPacket : public SimpleSerialProtocol::Packet {
public:
@@ -20,6 +22,7 @@
virtual ~EchoPacket() {}
#pragma pack(push, 1) //must pack the structure to byte boundary for raw recast to work reliably
+ //this is used in Packet::interpretData and used to validate the packet
struct Interface {
Interface() {
type = 1; // initialise the type
@@ -35,8 +38,8 @@
};
uint8_t temp;
- short temp1;
- int temp2;
+ uint16_t temp1;
+ uint32_t temp2;
float temp3;
};
--- a/main.cpp Sun Jul 29 19:46:09 2012 +0000
+++ b/main.cpp Wed Aug 27 18:05:51 2014 +0000
@@ -17,27 +17,15 @@
// }
// return tmp_checksum;
-Serial debug(p28, p27);
-
TestProtocol testProtocol;
+SimpleSerialProtocol::Protocol comms(USBTX, USBRX, LED1);
//the main loop
int main() {
- testProtocol.initialise();
-
- debug.baud(115200);
- debug.printf("Debug Console:\r\n");
-
- testProtocol.printf("Hello printf\r\n");
- testProtocol.printf("Hello printf %s\r\n", "booyaa");
- testProtocol.puts("Hello puts\r\n");
-
- testProtocol.putc('H');
- testProtocol.puts("\r\n");
-
- testProtocol.puts("SimpleSerialProtocol Serial io overrides tested\r\n");
-
+ comms.initialise(115200);
+ comms.receiveCallback(1, &testProtocol, &TestProtocol::onEchoPacket);
+
while (1) {
- testProtocol.update();
+ comms.update();
}
}
--- a/mbed.bld Sun Jul 29 19:46:09 2012 +0000 +++ b/mbed.bld Wed Aug 27 18:05:51 2014 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/10b9abbe79a6 \ No newline at end of file +http://mbed.org/users/mbed_official/code/mbed/builds/9327015d4013 \ No newline at end of file