Posts Tagged C++

Xduino download update

I would like to inform you that XDUINO-IDE is ready, you can download it from

Note that you are only authorized to download this version of
XDUINO-IDE only if you have the STM32 Uploader software in your

Password: y8jgmdn0

Note that the username is all lower-case.


Arduino – The embedded platform programming made simple for ATMEGA/AVR platform

ARM – the processor site ARM architecture – information on wikipedia

ST Microelectronics – A maker of ARM processor of the STM32 family including Cortex-M3

STM 32 Cortex-M3 forum on ST site

Arduino forum – latest happenings with Arduino
Xduino team is currently out of station so we are positing temporary download instructions here : -)

Kindly signup here first:

Download signup

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MCU and boards testing

We are currently testing out some additional MCUs some comes with Ethernet so the inclusion of TCPIP stack could be included in the future scope. We also have received some request from Apple/Mac OSX users and as we currently don’t have access to any Apple/Mac OSX system and without any funding we cannot proceed on this. However, information pills if we can get some substantial sponsorship/donation we will proceed on this as well as intensively continue our development.

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Xduino forum decision

We are currently deciding to go with either phpBB or SMF. If you have experience with these forums please let us know your opinion.

The topics within the discussion forum will include but not limited to:
– Xduino IDE (including ARM Compiler) and Xduino library (with Arduino-like commands) feature request/comment/suggestion/ideas
– Interesting program/projects/library
– Help channel and trouble shooting

Let us know what you think.

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ARM compiler, uploader, programming library all in XDUINO-IDE

Please support us by donating to us so we can continue to develop this project further.

easier way to pay online!

XDUINO-IDE (v0.91) with XDUINO Library:
This contains XDUINO Integrated Development Environment with upload tools (interface for programming and uploading to the device).
Please signup at Download signup page and we’ll contact you with download instructions.

Once you have downloaded and wishes to register the software for support and to let us know who you are and how we can assist you in future you can fill the form at Registration page

XDUINO Library Only
[download id=”424″ format=”1″]

Xduino currently supports the following ARM Cortex-M3 STM32f103ret6 board.

Price: US$30 + $10shipping
(Contact us here to buy)

Currently 4 in stock

(the shipping price is for Europe, decease
USA, ed
India, Singapore for other countries please contact us)
(for big quantity order please email us)

ARM STAMP Cortex-M3 STM32F10ret6 board

ARM STAMP Cortex-M3 STM32F10ret6 board

If you are interested in getting this board you can contact us.
The board has following features:

  • 5 Serial ports
  • 48 General purpose input/output pins (GPIO)
  • 16 Analog input channels 12-bits (ADC)
  • 2 Analog output channels 12-bits (DAC)
  • 512 Kbytes of Flash memory
  • 68 Kbytes of RAM
  • 3 SPI ports (2 can do I2S)
  • 2 I2C
  • 1 USB
  • 1 CAN
  • 1 SDIO
    • Use MCU 32Bit ARM Cortex-M3 64Pin (LQFP) of “STmicroelectronics”
    • Use Crystal 8.00MHz + Phase-Locked Loop (PLL), Run 72MHz frequency with speed 1.25 DMIPS/MHz to process data that is equivalent to 90MIPS
    • Has RTC (Real Time Clock) Circuit with XTAL 32.768KHz and Battery Backup connector
    • Support In-System Programming (ISP) and In-Application Programming (IAP) through On-Chip Boot-Loader Software via Port USART1 (RS232)
    • Has RS232 Communication Circuit that uses Connector 4-PIN
    • Has 48 Bit GPIO with 5V-Tolerant for independent digital applications (maximum analog input is 3.3V)
    • Use +3.3V Power Supply
    • Connector is placed on 50 Pin Header with a distance of 2.54mm (100mil) (25 pins per side) with a distance of 1.5 inch (1500mil/38.1mm), so it is quite easy to use and expand I/O Circuit. Moreover, it can be used with Project Board and PCB.

Now as XDUINO-IDE is ready for download, these are the list of components you will find in XDUINO-IDE. This platform provides ease of compiling and uploading to the ARM Cortex-M3 devices by simply clicking the button on the main interface : -).

Main components includes:

  • Free ARM compiler
  • ARM compiler with C and C++ libraries
  • ARM Cortex-M3 stm32f series mcu firmware/software uploader
  • XDUINO library for programming with Arduino-like syntax
  • Programming template in XDUINO and general ARM styles
  • and much much more..

What are you waiting for, you can signup to download it now from Download page.

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XDUINO-IDE v0.91 available now

XDUINO-IDE is ready for you to use with ARM Cortex-M3 STM32 boards. : -) Just fill out fill in the registration form on Download page.

Here is a screen shot:

XDUINO IDE v0.91 screen shot

XDUINO IDE v0.91 screen shot

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XDUINO-IDE v0.91 released

XDUINO-IDE (v0.91) with integrated uploader tool is finally here. The current release will only be available for those who have bought an XDUINO board from us.

If you have bought a board from us and wants to download the IDE, site please send us a note and we’ll get back to you asap.

XDUINO package with library files has been renamed XDUINO-lib.

There is also a minor upgrade for XDUINO-lib in the just released version 0.33

Happy XDUINOing

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Xduino v0.31 released

Xduino v0.31 has been released. This release include STM32f10x required libraries as well as project example file for Keil RV-MDK and IAR EWARMv5.

Minor change has been done for serial port buffering to make sure that buffering is done seperately for each serial port.

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Xduino 0.3 released

(So far Xduino v0.3 has only been tested on board with STM32F10ret6 mcu.)

There are a few things to keep in mind when using Xduino v0.3

Major Features:
All Arduino syntax are compatible with Xduino v0.3 (as per Arduino references and Arduino extended references page except for analogReference() command.

Serial ports
There are total of 5 serial ports so Serial1-5 commands can be used.
There is also a special serial port output command ‘printf’ this function can be used like the general C/C++ printf function on the Serial command like

Serial1.printf(“Xduino v%f”, 0.3);

Math library (math.h)
Mathematical functions are included. For full information please check this math.h page.

Standard library (stdlib.h)
Standard library functions are available. For full information please check this stdlib.h page.

Other C or C++ libraries
Other C and C++ libraries can also be included, extending the limitation of functionality.

Analog ports
All Analog input and Analog output channels have 12-bits data. This means that when reading analog channel by using analogRead() command the returned value is between 0 and 4095 and when writing to analog output channel one can write value 0 and 4095.

Analog input channels (ADC)
There are total of 15 analog input channels with the following channel name corresponding to the Pin on the board:

Analog input channel (ADC) Pin on board
0 PA0
1 PA1
2 PA2
3 PA3
4 PA4
5 PA5
6 PA6
7 PA7
8 PB0
9 PB1
10 PC0
11 PC1
12 PC2
13 PC3
14 PC4
15 PC5

Analog output channels (DAC)
There are 2 DAC channels and each correspond to a port as follow:

Analog output channel (DAC) Pin on board
1 PA4
2 PA5

AnaloglastWrite() function can be used to retrieve the last value written to the analog output (DAC) channel. For example, to get the last value written to analog output channel 2:

int lastvalue;

There are total 16 interrupt channels for digital input pins, the interrupt. Each pin ‘number’ can only be assigned an interrupt. This means that interrupt cannot be assigned to PA5 and PB5 at the same time as the pin ‘number’ is the same.
(note: the interrupt handling function must appear before main() directive of the program if not declaring a function prototype)

pause(ms) and pauseMicroseconds(us)
(delay possible within interrupt routine)
Generally the use of delay functions are not possible within the interrupt handling routine and this is where pause(ms) and pauseMicroseconds(us) comes in. Just specify the number of milliseconds/microseconds to pause the program and pause will handle it even within the interrupt. Note that pause only “approximate” the time to delay.
Example: to pause for approximately 10 milliseconds


Important file setup
To get interrupt functions and timing function working properly the following lines must be added to stm32f10x_it.c appropriately:

void SysTickHandler(void) { SysTick_IRQ_Function(); }

void USART1_IRQHandler(void) { USART1_IRQ_Function(); }
void USART2_IRQHandler(void) { USART2_IRQ_Function(); }
void USART3_IRQHandler(void) { USART3_IRQ_Function(); }
void UART4_IRQHandler(void) { UART4_IRQ_Function(); }
void UART5_IRQHandler(void) { UART5_IRQ_Function(); }

void EXTI0_IRQHandler(void) { EXTI_ALL_IRQ_Function(); }
void EXTI1_IRQHandler(void) { EXTI_ALL_IRQ_Function(); }
void EXTI2_IRQHandler(void) { EXTI_ALL_IRQ_Function(); }
void EXTI3_IRQHandler(void) { EXTI_ALL_IRQ_Function(); }
void EXTI4_IRQHandler(void) { EXTI_ALL_IRQ_Function(); }
void EXTI9_5_IRQHandler(void) { EXTI_ALL_IRQ_Function(); }
void EXTI15_10_IRQHandler(void){ EXTI_ALL_IRQ_Function(); }

Additional minor features
digitalToggle() command can be used to toggle the digital state of the pin from high to low or from low to high. For example to toggle the state of pin PC2


Finally Xduino version 0.3 has been released. This version has all Arduino platform functions except for analogReference() function.

On top of the the above, Xduino have taken a step further by extending the functionalities above and beyond current scope. For more information please check the Documentation section.

This version also includes Keil RV-MDK project file example.

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Xduino v0.2 to be released

Here is an example for dimming the LED connected to PA4 while attaching interrupt to PB8 and PB9. It has been tested with Xduino v0.3 (more projects and examples will be added in the near future)

/* Xduino v0.3 */

#include "main.h"
using namespace compatArduino;

void InterruptPB9(void)
Serial1.printf("(interrupt 9!!! %d)",digitalRead(PB9));

void InterruptPB8(void)
Serial1.printf("(interrupt 8!!! %d)",digitalRead(PB8));

int LedPin = PB7;		// as labelled on ARM Cortex-M3 board

int main(void)

float version=0.3;
double fnumber=1234.5678;
char myinput;

doInit(); 				//Initialize Xduino components, this line is required

Serial1.begin(115200); 	//USART1

Serial1.printf("Starting Xduino (v%f) example program...",version);
Serial1.printf("hello!! %d %d %d",1,2,3);
Serial1.printf("The floating point number is %d",fnumber);




Serial1.printf("This system has been up for %lu milliseconds.",millis());

if(myinput=='a') { digitalWrite(PB1,HIGH); }	// press a to turn PB1 to HIGH state
if(myinput=='b') { digitalWrite(PB1,LOW); }	// press b to turn PB1 to HIGH state
if(myinput=='n') { noInterrupts(); }			// press n to disable all existing interrupts
if(myinput=='i') { interrupts(); }			// press i to enable all existing interrupts
Serial1.printf("Input is %c ...",myinput);

//using analogWrite on channel 1 which is PA4 to dim the LED connected to it
for(int i=0;i<=0x0FFF;i+=0xFF)	// smoothly turn PA4 (DAC port 1) on

for(int j=0x0FFF;j>=0;j-=0xFF)	// smoothly turn PA4 (DAC port 1) off

analogWrite(1,0xFFF);			// Turn on PA4 fully at once
digitalWrite(LedPin,LOW); 		// Turn off PA4 fully at once

}	//## END while(1)

} //## END main()

Xduino v0.12 should come out within the next few days and it will have Serial buffer, Round-robin general purpose library, ADC (Analog input) and might also have DAC (Analog output) functionalities. Note DAC function does not exist in Arduino (yet). PWM function should be coming out soon as well but might not always be needed as there are 2 DAC channels on the ARM Cortex-M3 STM32F10ret6 board which is being used for testing. Arduino compatibility syntax will be provided on the new functions as well.

Xduino v0.12 should come out within the next few days and it will have Serial buffer, Round-robin general purpose library, ADC (Analog input) and might also have DAC (Analfunctionalities. Note DAC function does not exist in Arduino (yet). PWM function should be coming out soon as well but might not always be needed as there are 2 DAC channels on the ARM Cortex-M3 STM32F10ret6 board which is being used for testing. Arduino compatibility syntax will be provided on the new functions as well.

Xduino v0.12 should come out within the next few days and it will have Serial buffering (user can define size), Round-robin general purpose library, ADC (Analog input) and might also have DAC (Analog output) functionalities. Note DAC function does not exist in Arduino platform (yet). PWM function should be coming out soon as well but might not always be needed as there are 2 DAC channels on the ARM Cortex-M3 STM32F10ret6 board which is being used for testing. Arduino compatibility syntax will be provided on the new functions as well.

All suggestions are welcome. Enjoy!
The next release of Xduino will be version 0.2 making a jump from version 0.1x as most of the Arduino programming functions has been implemented along with additional features, especially those exceeding what current Arduino platform can provide.

Supported Arduino syntax will be:

pinMode digitalWrite digitalRead

analogRead (12-bits 0-4095 range)

analogWrite (12-bits 0-4095 range true Analog output not PWM)

attachInterrupt (upto 16 interrupts)
detachInterrupt interrupts noInterrupts

delay delayMicroseconds millis micros

Serial – print println read available flush

on top of this more advanced functionality will include:

Setting Serial port Rx and Tx buffer size
Serial.printf – optional C style printf function for Serial port eg.
printf(“hello %d”, 123);

digitalToggle – toggle state of digital output

analogLastwrite – get the latest value set by analogwrite

(General purpose Round-Robin library will be included.)

along with endless possibilities offered by C++ libraries

More to follow… Suggestions are always welcome!

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Xduino v0.11 released

Today Xduino v0.11 has been released. With higher syntax compatibility to Arduino platform.

You can see a simple example and download the latest Xduino release on the ARM Cortex M-3 page.

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