RE: quadrature decoder in any Synergy parts?

Matt,

Here is a simple code snippet that demonstrates setting up quadrature decoding:

/* New Thread entry function */

#include "new_thread.h"

#include "../synergy/ssp/src/driver/r_gpt/hw/hw_gpt_private.h"

volatile uint32_t Encoder_1;

volatile uint32_t Encoder_2;

void SetupGPT_Encoders(uint8_t channel);

/*

Encoder 1

A1           129         P1_3      GTIOC2A

B1           130         P1_2      GTIOC2B

Z1           132         P1_0      GTETRGA

Encoder 2

A2           125         P1_7      GTIOC8A

B2           126         P1_6      GTIOC8B

Z2           128         P1_4      GTETRGB

*/

void SetupGPT_Encoders(uint8_t channel)

{

   HW_GPT_PowerOn(channel);

   GPT_CH(channel).GTUPSR = 0x6900;    // Phase counting mode 1

   GPT_CH(channel).GTDNSR = 0x9600;    // Phase counting mode 1

   GPT_CH(channel).GTCNT = 0;          // Reset Count

   GPT_CH(channel).GTCR_b.CST =  1;    // Start Counter

}

void new_thread_entry(void)

{

   SetupGPT_Encoders(2);

   SetupGPT_Encoders(8);

   while (1)

   {

       tx_thread_sleep (1);

       Encoder_1 = GPT_CH(2).GTCNT;

       Encoder_2 = GPT_CH(8).GTCNT;

   }

}

-Gary