Re: Aux I/O not responding

Steve Trigero <seecwriter-/[email protected]>
Newsgroups gmane.comp.hardware.rabbit-semiconductor
Message-ID <[email protected]>
Did you enable port A?
 
 // Set port A as the I/O data bus & Port B as the I/O Address bus. WrPortI( SPCR, &SPCRShadow, 0x8C); // Enable I/O bank, 3 waitstates, chip select, permit write WrPortI(IB7CR, &IB7CRShadow, 0x88);// I/O Bank bit 7, port E, I/O strobe 
 


>________________________________
> From: Taiwo <taiwo_ososanya-/[email protected]>
>To: [email protected] 
>Sent: Friday, August 2, 2013 7:07 AM
>Subject: [rabbit-semi] Aux I/O not responding
>  
>   
> 
>
>Hello guys
>
>I'm quite new to the Rabbit MCU. I have been trying to send some
>messages to an OLED through the aux I/O pins, but none of the pins
>associated with the Aux I/O are responsding (including /IORD and /IOWR).
>I have macro definition at the start of the source file, amongst others.
>Please what am I missing out in the source file.
>
>Below is a brief description of my file.
>
>#define PORTA_AUX_IO // Enable the external I/O bus
>
>void SendToOLED(int addr, char value)
>{
>WrPortE(addr, NULL, value);
>}
>
>int main()
>{
>WrPortI(IB7CR, &IB7CRShadow, 0x4C);  // Invert
>
>// Ensure tht the 6-bit address external I/O bus is enabled
>MsDelay(1000);        // Wait for one second to allow OLED to reset
>itself
>
>SendToOLED(1, '\B00111001'); // 8-bit, 2 line, 5x8 dots, Western
>European font
>SendToOLED(1, '\B00001100'); // Display On, Cursor Off, Non-Blinking
>cursor
>SendToOLED(1, '\B00000110'); // Increment and Non-shift Entire
>Display
>}
>
>   
>
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