Ryo Od / Mbed 2 deprecated Nucleo_rtos_SPI_Master_Test

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed-rtos mbed st7565LCD

main.cpp

Committer:
ryood
Date:
2016-10-01
Revision:
3:2b2c6c0e9f1d
Parent:
2:95204570426c
Child:
4:c2b67c69d048

File content as of revision 3:2b2c6c0e9f1d:

#include "mbed.h"
#include "rtos.h"
#include "st7565LCD.h"

#define SPI_SPEED   (10000000)

BusIn Switches(PA_0, PA_1, PA_4, PB_0, PC_1, PC_0);

SPI SpiM(PA_7, PA_6, PA_5); // mosi, miso, sclk
DigitalOut SpiMCs(PB_6);

InterruptIn stepChangeInterrupt(PC_7);

//ST7565(PinName mosi, PinName sclk, PinName cs, PinName rst, PinName a0);
ST7565 gLCD(PB_15, PB_13, PB_12, PB_2, PB_1);
PwmOut LCDBackLight(PA_11);

volatile bool isStepChanged = false;
uint8_t prevSendVal = 0x00;

void setChangeStep()
{
    isStepChanged = true;
}

int main()
{
    printf("\r\n\nNucleo rtos SPI Master Test..\r\n");
    
    // Setup LCD
    LCDBackLight.period_ms(10); 
    LCDBackLight = 0.6f;
    Thread::wait(10);
    
    gLCD.begin(0x10);
    gLCD.drawstring(0, 0, "SPI Master Test");
    gLCD.display();
        
    // Setup Switches
    Switches.mode(PullUp);
    /*
    while(1) {
        printf("%x\r\n", ~Switches.read() &0x3f);
        Thread::wait(100);
    }
    */
    
    // Setup Interrupt
    stepChangeInterrupt.fall(&setChangeStep);
    
    // Setup SPI
    SpiMCs = 1;
    SpiM.format(8, 0);
    SpiM.frequency(SPI_SPEED);
    
    for (;;) {
        uint8_t sendVal = ~Switches.read();
        
        if (prevSendVal != sendVal || isStepChanged) {
            SpiMCs = 0;
            uint8_t receivedVal = SpiM.write(sendVal);
            SpiMCs = 1;
            
            prevSendVal = sendVal;
            
            if (isStepChanged) {
                char lineBuffer[32];
                sprintf(lineBuffer, "Step: %02d", receivedVal);
                gLCD.drawstring(0, 1, lineBuffer);
                gLCD.display();
                isStepChanged = false;
            }
        }
    }
}