Ring Buffer on arduino zero.

[gioreva]

Trying to compile for zero I have this error that I do not understand.

`Arduino: 1.8.5 (Windows 10), Board: "GEVINO SAM-BA bootloader"

In file included from C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src/utility/EspDrv.h:26:0,

             from C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src/WiFiEsp.h:30,

             from D:\del\WebServerAP\WebServerAP.ino:14:

C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src/utility/RingBuffer.h:23:7: error: using typedef-name 'RingBuffer' after 'class'

class RingBuffer

   ^

In file included from C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/Uart.h:23:0,

             from C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\variants\arduino_zero/variant.h:43,

             from C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/delay.h:23,

             from C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/Arduino.h:81,

             from sketch\WebServerAP.ino.cpp:1:

C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/RingBuffer.h:54:41: note: 'RingBuffer' has a previous declaration here

typedef RingBufferN<SERIAL_BUFFER_SIZE> RingBuffer;

                                     ^

WebServerAP:25: error: no matching function for call to 'RingBufferN<64>::RingBufferN(int)'

RingBuffer buf(8);

             ^

D:\del\WebServerAP\WebServerAP.ino:25:17: note: candidates are:

In file included from C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/Uart.h:23:0,

             from C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\variants\arduino_zero/variant.h:43,

             from C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/delay.h:23,

             from C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/Arduino.h:81,

             from sketch\WebServerAP.ino.cpp:1:

C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/RingBuffer.h:58:1: note: RingBufferN::RingBufferN() [with int N = 64]

RingBufferN::RingBufferN( void )

^

C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/RingBuffer.h:58:1: note: candidate expects 0 arguments, 1 provided

C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/RingBuffer.h:33:7: note: constexpr RingBufferN<64>::RingBufferN(const RingBufferN<64>&)

class RingBufferN

   ^

C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/RingBuffer.h:33:7: note: no known conversion for argument 1 from 'int' to 'const RingBufferN<64>&'

C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/RingBuffer.h:33:7: note: constexpr RingBufferN<64>::RingBufferN(RingBufferN<64>&&)

C:\Users\x-gio\AppData\Local\Arduino15\packages\arduino\hardware\samd\1.6.19\cores\arduino/RingBuffer.h:33:7: note: no known conversion for argument 1 from 'int' to 'RingBufferN<64>&&'

D:\del\WebServerAP\WebServerAP.ino: In function 'void loop()':

WebServerAP:64: error: 'RingBuffer' has no member named 'init'

 buf.init();                               // initialize the circular buffer

     ^

WebServerAP:68: error: 'RingBuffer' has no member named 'push'

     buf.push(c);                          // push it to the ring buffer

         ^

WebServerAP:72: error: 'RingBuffer' has no member named 'endsWith'

     if (buf.endsWith("\r\n\r\n")) {

             ^

exit status 1
no matching function for call to 'RingBufferN<64>::RingBufferN(int)'

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
`

[JAndrassy]

it is a conflict of two types with the same name RingBuffer. One is in SAMD Arduino core and second in WiFiEsp library. WiFiEsp was not tested and adjusted for SAMD boards

solution #27

[gioreva]

Changed all RingBuffer with RingbufferW

Now error are this:

What is va_list ?

`Arduino: 1.8.5 (Windows 10), Board: "GEVINO SAM-BA bootloader"

C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src\utility\EspDrv.cpp: In static member function 'static int EspDrv::sendCmd(const __FlashStringHelper*, int, ...)':

C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src\utility\EspDrv.cpp:1019:2: error: 'va_list' was not declared in this scope

va_list args;

^

C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src\utility\EspDrv.cpp:1019:10: error: expected ';' before 'args'

va_list args;

      ^

C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src\utility\EspDrv.cpp:1020:12: error: 'args' was not declared in this scope

va_start (args, timeout);

        ^

C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src\utility\EspDrv.cpp:1020:25: error: 'va_start' was not declared in this scope

va_start (args, timeout);

                     ^

C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src\utility\EspDrv.cpp:1021:56: error: 'vsnprintf_P' was not declared in this scope

vsnprintf_P (cmdBuf, CMD_BUFFER_SIZE, (char*)cmd, args);

                                                    ^

C:\Users\x-gio\Documents\Arduino\libraries\WiFiEsp\src\utility\EspDrv.cpp:1022:14: error: 'va_end' was not declared in this scope

va_end (args);

          ^

exit status 1
Error compiling for board GEVINO SAM-BA bootloader.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
`

[gioreva]

Putting __gnuc_va_list args; solve this problem.
But putting __gnuc_va_start and __gnuc_va_end not solve next problem.
Also vsnprintf_P give me problem.

int EspDrv::sendCmd(const __FlashStringHelper* cmd, int timeout, ...)
{
char cmdBuf[CMD_BUFFER_SIZE];
__gnuc_va_list args;
__gnuc_va_start (args, timeout);
vsnprintf_P (cmdBuf, CMD_BUFFER_SIZE, (char*)cmd, args);
__gnuc_va_end (args);

[gioreva]

I have solved all the compilation issues this way, but it seems to not Work.

Changed RingBuff Class on RingBuffW
Added on EspDrv.cpp
#include <stdarg.h>
#include <stdio.h>
Changed on EspDrv.cpp
vsnprintf_P (cmdBuf, CMD_BUFFER_SIZE, (char*)cmd, args);
with
vsnprintf (cmdBuf, CMD_BUFFER_SIZE, (char*)cmd, args);

How is the equivalent of Vsnprintf_P with ARM ?

[gioreva]

WiFi.init(&Serial);
Can i use also with hardware serial ?

[gioreva]

This exactly my change.

Changed on RingBuffer.cpp & RingBuffer.h & EspDrv.cpp & EspDrv.h & Scketh
RingBuff Class on RingBuffW
Added on EspDrv.cpp
#include <stdarg.h>
Changed on EspDrv.cpp
vsnprintf_P (cmdBuf, CMD_BUFFER_SIZE, (char*)cmd, args);
with
vsnprintf (cmdBuf, CMD_BUFFER_SIZE, (char*)cmd, args);

But unit reboot each fiew seconds.
ESP led, blink repeatedly every few seconds, USB driver disappears and Returns.

[gioreva]

Ok, no, all Work Well.

Only small problem.
On USB debug Appears IP 0.0.0.0
But really work well at 192.168.1.1

[gioreva]

AT+GMR
AT version:1.1.0.0(May 11 2016 18:09:56)
SDK version:1.5.4(baaeaebb)
Ai-Thinker Technology Co. Ltd.
Jun 13 2016 11:29:20
OK

All example work, but on all example, says always IP 0.0.0.0
Can you help me to solve problem ?