Chameleon-AVR Nurve Networks, Chameleon-AVR Datasheet - Page 204

• Manufacturer Part Number: Chameleon-AVR
• Description: MCU, MPU & DSP Development Tools AVR8 & PROPELLER DEV SYSTEM (SBC)
• Manufacturer: Nurve Networks

Specifications of Chameleon-AVR

• Processor To Be Evaluated: AVR 328P
• Data Bus Width: 8 bit
• Interface Type: USB, VGA, PS/2, I2C, ISP, SPI
• Operating Supply Voltage: 3.3 V, 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

26.3 API Functional Declarations
The following lists each function, a description, comments, and example usage of the function.
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Function Prototype:
Description:
Example(s):
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Function Prototype:
Description:
Example(s):
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Function Prototype:
Description:
Example(s):
int PropPort_SetDir(int dirbits);
int PropPort_Read(void);
int PropPort_Write(int data8);
Write the binary patterns for 0..255 on the port at 10 millisecond intervals.
Set the lower 4-bits to outputs, upper 4-bits to inputs.
Set the port to all input and read the port.
11110000 = out, out, out, out, in, in, in, in. Physically on the port header bit 0 is on the right, bit 7 on the
left, so its LSB to MSB right to left. Returns 1.
Returns the pin data.
Returns 1.
PropPort_SetDir(…) sets the direction of the 8 I/O bits on the Propeller local port. 1=output, 0=input, eg:
PropPort_Read() reads the pins of the input port that are set as inputs, pins set as outputs are invalid.
PropPort_Write(…) writes data8 to the port. I/Os that are set as inputs ignore the bits in those positions.
© 2009 NURVE NETWORKS LLC “Exploring the Chameleon AVR 8-Bit”
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