christian b / 4dGENIE

Mbed 4dGenie class

Dependents:   Genie_Test 039847382-S3_DS1621_and_LCD_V1

This is a work in progress.

4dGenie class to use with 4dLCD screens that are using the genie environment.

There are still some rare occasions where the 4dLCD might crash, for now i have no solution to this except doing a reset of the 4dLCD.

Please make sure to have the most up to date PmmC loaded on the screen.

usage example :

Mbed4dGenie test program

#include "mbed.h"
#include "mbed_genie.h"

DigitalOut myled(LED1);
/*
    The Mbed4dGenie class requires 3 parameters
    1 - Tx pin
    2 - Rx pin
    3 - Reset pin
*/
Mbed4dGenie lcd4d(PTE0,PTE1,PTB9);



int main() {
    int temp = 0;
printf("Mbed Genie demo \n\r");
lcd4d.Start();


 /*
 for example, in this loop we increment the thermometer0 object from 0 to 100
 */
 
    while(1) {
        if(temp >= 100)
        {
            temp = -1;
        }
        else
        {
            temp++;
        }

        lcd4d.genieWriteObject(GENIE_OBJ_LED_DIGITS,1,temp);

        myled = 1;
        wait(0.05);
        myled = 0;
        wait(0.05);
    }
}

Diff: mbed_genie.h

Revision:
2:f283764fe9b7
Parent:
1:95e0e194a412
Child:
3:11c49c49cd1a
--- a/mbed_genie.h	Fri Feb 21 02:47:32 2014 +0000
+++ b/mbed_genie.h	Sun Feb 23 01:34:05 2014 +0000
@@ -134,3 +134,62 @@
 extern uint16_t genieWriteStr               (uint16_t index, char *string);
 extern void     genieWriteContrast          (uint16_t value);
 
+class Mbed4dGenie{
+    public:
+    Mbed4dGenie(PinName TxPin,PinName RxPin);
+    void genieAttachEventHandler (genieUserEventHandlerPtr handler);
+    
+    uint8_t _genieGetchar(void);
+    void _geniePutchar (uint8_t c);
+    uint16_t _genieGetLinkState (void);
+    void _genieSetLinkState (uint16_t newstate);
+    bool _genieEnqueueEvent (uint8_t * data);
+    uint16_t genieWriteStrU (uint16_t index, char *string);
+    uint16_t genieWriteStr (uint16_t index, char *string);
+    int _genieWriteStrX (uint16_t code, uint16_t index, char *string);
+    void genieWriteContrast (uint16_t value);
+    uint16_t genieWriteObject (uint16_t object, uint16_t index, uint16_t data);
+    void _genieWaitForIdle (void);
+    bool genieDequeueEvent(genieFrame * buff);
+    uint16_t genieGetEventData (genieFrame * e);
+    bool genieEventIs(genieFrame * e, uint8_t cmd, uint8_t object, uint8_t index);
+    void _geniePushLinkState (uint8_t newstate);
+    void _geniePopLinkState (void);
+    void _genieFlushSerialInput(void);
+    void _handleError (void);
+    void _genieFlushEventQueue(void);
+    bool GenieReadable(void);
+    uint16_t genieDoEvents (void);
+    
+    private:
+    void RxIrqHandler(void);   
+    Serial _screen;
+    Timer _t;
+    //////////////////////////////////////////////////////////////
+    // Pointer to the user's event handler function
+    //
+    genieUserEventHandlerPtr _genieUserHandler;
+    //////////////////////////////////////////////////////////////
+    // A structure to hold up to MAX_GENIE_EVENTS events receive
+    // from the display
+    //
+    genieEventQueueStruct _genieEventQueue;
+    //////////////////////////////////////////////////////////////
+    // Simple 5-deep stack for the link state, this allows 
+    // genieDoEvents() to save the current state, receive a frame,
+    // then restore the state
+    //
+    uint8_t _genieLinkStates[5];
+    //
+    // Stack pointer
+    //
+    uint8_t     *_genieLinkState;
+    //////////////////////////////////////////////////////////////
+    // Number of mS the genieGetChar() function will wait before
+    // giving up on the display
+    int _genieTimeout;
+    //////////////////////////////////////////////////////////////
+    // Global error variable
+    int _genieError;
+    uint8_t rxframe_count;
+    };