cos401ao.h File Reference

Detailed Description

This module implements the variables and callback functions for the object dictionary from CiA 401 (analog outputs). The module adds the following objects to the object dictionary:

Index	Description	Function / Variable	Configuration Symbol
6411h	Write analog output 16-bit	Cos401_Idx6411()	COS_DS401_AO
6443h	Analog output error mode	Cos401_Idx6443()	COS_DS401_AO
6444h	Analog output error value integer	Cos401_Idx6444()	COS_DS401_AO
6450h	Analog output SI unit	Cos401_Idx6450()	COS_DS401_AO

Include dependency graph for cos401ao.h:

Functions
void	Cos401_AO_Error (uint8_t ubEnableV)
void	Cos401_AO_Set (uint8_t ubChannelV, uint16_t uwValueV)

Function Documentation

Cos401_AO_Error()

void Cos401_AO_Error

(

uint8_t

ubEnableV

)

Parameters

[in]

ubEnableV

set / reset error condition

This function sets / resets the analog output module error condition. Passing a 0 to ubEnableV resets the error condition, passing a 1 to ubEnableV sets the error condition. If the error condition is set, the outputs are set according to the objects 6443_h and 6444_h.

Cos401_AO_Set()

void Cos401_AO_Set	(	uint8_t	ubChannelV,
		uint16_t	uwValueV
	)

Parameters

[in]	ubChannelV	output channel number
[in]	uwValueV	analog output write value

This function sets the value uwValueV to the analog output. The parameter ubChannelV denotes the channel number. The first channel starts at index 0 (i.e. sub-index - 1 of object 6411h).

This function is called by the protocol stack for access to a specific analog output.

Example

uint8_t  Cos401_AO_Set(uint8_t ubChannelV, uint16_t uwValueV)
{
   //------------------------------------------------------------------------------
   // set analog output 1 on target hardware here
   //
   if (ubChannelV == 0)
   {
      SetMyDacOnHardware(uwValueV);
   }   
   return 0;
}