PEAK-System Forum

Hi,

I want to read a Voltage from the Analog In 1 Pin and output that Voltage in a CAN message.
How do I do this using the PCAN Router Pro FD?

Best regards,
Tim

if you take a look into the Sample 08_HW_IO and check in the main.c / line 120 , you will find this code

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// clear EOC flag by read the ADC2 register
TempVar = ADC2->DR & 0xFFF;
ADC2->SQR3 = 6;
ADC2->CR2 |= 1 << 30;
// wait EOC flag
while ( !( ADC2->SR & ( 1 << 1)))
 {}
ResultData = ADC2->DR & 0xFFF;

The AD have 12Bit, and the Result is 8.13mV per Digit.
We will extend this in the next Version to an own Function like the DIn.

We have add the HW_GetAIN to the code - so now you simply call the function to get the Analogue value.
Here a sample - CAN ID 0x55A / STD Msg, trigger the function and send the result on 0x55B in the first 16 Bits (Byte 0 and 1)

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uint32_t  tmp32;
// catch ID 55Ah to send analog value from AIN
if ( RxMsg.id == 0x55A  &&  RxMsg.msgtype == CAN_MSGTYPE_STANDARD)
{
  HW_GetAIN ( &tmp32);
  RxMsg.id = RxMsg.id + 1;
  RxMsg.data16[0] = tmp32;
  CAN_Write ( CAN_BUS1, &RxMsg);
}

Here the new Block in "hardware.h"

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//! @brief      get AIN from I/O pins
//!
//! @param      buffer  result buffer (single uint32_t)
//!
//! @return             one error of HW_ERR_...
HWResult_t  HW_GetAIN ( uint32_t  *buffer);


//! @brief
//! Read digital inputs. Each bit will represent a digital pin.
//!
//! @param		buffer		Buffer for DIN-value
//!
//! @return		one error of HW_ERR_...
HWResult_t  HW_GetDIN ( uint32_t  *buffer);


//! @brief
//! Set digital outputs. Each bit will represent a digital pin.
//! 
//! @param		buffer		Buffer for DOUT-value
//!
//! @return		one error of HW_ERR_...
HWResult_t  HW_SetDOUT ( uint32_t  *buffer);

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Read Voltage from Analog In

Read Voltage from Analog In

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