Platform information¶

See Platform.

Jumper settings¶

Supported function map¶

mbed Libraries¶

Note: "Done" means that you can import it on the mbed on-line compiler.

mbed official Libraries¶

Note: "Available" means that you can import it on the mbed on-line compiler.

Other Libraries¶

Note: "Available" means that you can import it on the mbed on-line compiler.

Getting Started¶

Preparation¶

Install the USB serial communication driver¶

For Windows(R) user:

1. Connect GR-PEACH and PC.
2. After the mount GR-PEACH as "MBED" volume label, install this driver.
   

Add compiler for GR-PEACH¶

1. The root folder of GR-PEACH mass storage drive includes "mbed.htm" .
2. This file jumps to the site of GR-PEACH when double clicked.
3. You can use mbed compiler for GR-PEACH after click at "Add to your compiler" button.
   
   

Build and Run¶

Let's blink LED¶

1. Then launch the development environment from Compiler button.
2. Import mbed_blinky.
3. Click "Import Program" button.
4. Create binary file to click the "Compile" button.
5. When compile is finished, binary file is downloaded using browser function.
   Copy this file to mbed drive.
   For Window user: drag and drop.
   For Mac user : Refer here
6. When GR-PEACH's reset button is pushed or reconnect USB cable, the program runs.

Blink LED smoothly¶

Edit main.cpp of mbed_blinky.

#include "mbed.h"

PwmOut led(LED_RED);

int main() {
    float crt = 1.0, delta = 0.04;

    led.period_ms(2); // 500Hz
    while (true) {
        led.write(crt);
        wait_ms(50);
        crt = crt + delta;
        if (crt > 1.0) {
            crt = 1.0;
            delta = -delta;
        }
        else if (crt < 0) {
            crt = 0;
            delta = -delta;
        }
    }
}

Use A/D converter¶

Follow the procedure of "Let's blink LED". The program to import is below.

Use Serial Peripheral Interface(SPI)¶

1. Follow the procedure of "Let's blink LED". The program to import is below.

   Import programSPI_HelloWorld_Mbed

   SPI Hello World

   Last commit 12 Feb 2013 by mbed official

2. Before compile, edit main.cpp as below.

SPI spi(p5, p6, p7); // mosi, miso, sclk
DigitalOut cs(p8);

SPI spi(D11, D12, D13);   // mosi, miso, sclk
DigitalOut cs(D10);

Use I2C¶

1. To pull up I2C signals, please close jumpers. Platform page shows which jumper is need to close.
2. Follow the procedure of "Let's blink LED". The program to import is below.

   Import programI2C_HelloWorld_Mbed

   Hello World for I2C

   Last commit 14 Feb 2013 by mbed official

3. Before compile, edit main.cpp as below.
   

I2C i2c(p28, p27);

I2C i2c(I2C_SDA, I2C_SCL);

Use microSD¶

1. Follow the procedure of "Let's blink LED". The program to import is below.
   During importing, the dialog appears.
   **DO NOT CHECK the "Update all libraries to the latest version".**

   Import programSDFileSystem_HelloWorld

   SD File System Hello World

   Last commit 16 May 2017 by mbed official

2. Before compile, edit main.cpp as below.

SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board

SDFileSystem sd(P8_5, P8_6, P8_3, P8_4, "sd");

Use Ethernet¶

1. Follow the procedure of "Let's blink LED". The program to import is below.

   Import programTCPSocket_HelloWorld

   TCP Socket Hello World with Ethernet

   Last commit 14 May 2014 by mbed official

2. To specify MAC address, add fllowing function to main.cpp.
   

// set mac address
void mbed_mac_address(char *mac) {
    mac[0] = 0x00;
    mac[1] = 0x02;
    mac[2] = 0xF7;
    mac[3] = 0xF0;
    mac[4] = 0x00;
    mac[5] = 0x00;
}

Use GR-PEACH as USB Device¶

1. Follow the procedure of "Let's blink LED". The program to import is below.

   Import programUSBMouse_HelloWorld

   USBMouse Hello World

   Last commit 01 Mar 2013 by Samuel Mokrani

   If you want to use a function other a mouse, please see USBDevice page.

Use USB Host¶

1. To supply VBUS, please close JP3.
2. Follow the procedure of "Let's blink LED". The program to import is below.

   Import programUSBHostMouse_HelloWorld

   USBHostMouse Hello World

   Last commit 14 Mar 2013 by Samuel Mokrani

   If you want to use a function other a mouse, please see USBHost page.

CMSIS-DAP firmware Update¶

0. Preparation
Download a firmware from the following URI.

• Latest version
  grpeach_8mb_20150318.bin
  • support drag-and-drop writing on OS X Yosemite.
• Current version
  grpeach_8mb_20141217.bin
  • This firmware is written in the current GR-PEACH rev.C.

1. Connect GR-PEACH to PC
   Please make a short-circuit at JP2 when you connect USB cable between GR-PEACH and PC.
   
   
2. After the connection, it will appear as a disk called "CRP DISABLED".
   If "mbed" appears, the short-circuit of JP2 doesn't succeed.
   In this case, please re-try the previous item.
   When GR-PEACH connected as "CRP DISABLED", JP2 can be opened during firmware updating.
3. Open the "CRP DISABLED" disk folder and delete the Firmware.bin. (Please check the following Note.)
   
4. Copy the downloaded file to this drive. (Please check the following Note.)
   

5. Disconnect between GR-PEACH and PC after copy is finished.
6. Reconnect GR-PEACH and PC.
7. When USB disk appears as "mbed", firmware update is finished.

Known issues¶

defects (問題)¶

issues (課題)¶

fixes (解決した問題)¶