How to use UART with PE(AsynchroSerial)?

[aaronlee]

Hi,

How to use UART with PE(AsynchroSerial) in S12ZVCA?

Have any example?

Best Regards,

Aaron

[aaronlee]

Hi Daniel,

I try to use Event of AS1_OnRxChar. It can work fine in DEBUG mode. But it can not work in NORMAL mode (remove MULTILINK then power off/on my board).

P.S. Main() code can work fine in both (DEBUG/NORMAL) mode.

void AS1_OnRxChar(void)
{
    AS1_TComData *ReceiveChar;
 /* Write your code here ... */
    AS1_RecvChar(ReceiveChar);
    switch(*ReceiveChar)
   {
       case 'C':
          Pin_DO3 = 1; // LED4 OFF
          Pin_RCK_DoorLock = 0; // Door Lock (Lo Active)
          setReg8(DDRS, 0xF3U);
          break;
       case 'O':
          Pin_DO3 = 0;// LED4 ON
          Pin_RCK_DoorUnlock = 0; // Door Unlock (Lo Active)
          setReg8(DDRS, 0xF5U);
          break;
       default:
          setReg8(DDRS, 0xF1U);
          break;
    }
   return;
}

[aaronlee]

My code as attachment

[aaronlee]

Hi, Daniel,

I resolved the issue. But, I don't know why.

The wrong code as follow:

    AS1_TComData *ReceiveChar;
    AS1_RecvChar(ReceiveChar);
    switch(*ReceiveChar)

The correct code as follow:

    AS1_TComData ReceiveChar;
    AS1_RecvChar(&ReceiveChar);
    switch(ReceiveChar)

Best Regards,

Aaron

[danielmartynek · Accepted solution]

Hi Aaron,

The correct code creates an instance of AS1_TComData and then the function takes the address of the instance as a argument. The wrong code creates only a pointer. But the pointer doesn't point anywhere.  

Regards,

Daniel

[aaronlee]

Hi Daniel,

Thank you so much! 

Best Regard,

Aaron

[aaronlee]

Hi Daniel,

ZVL32-SCI-CW106 can work fine. Then, I modify SCI0 to SCI1 (ZVL32-SCI1-CW106 as attachment). It can work, too.

But, I got many error when I merge the SCI1.c & SCI1.h into my Processor Expert project(B0005_Test as attachment). I don't know how to solve the error.

Have any SCI (UART) example for Processor Expert?

Best Regards,

Aaron

[danielmartynek]

Hi,

types byte and word are undefined.

You should define them in SCI1.h header file:

typedef unsigned char byte;
typedef unsigned int word;

Regards,

Daniel

[danielmartynek]

Hi Aaron,

If you use an evaluation board you can connect the UART via OSBDM to an USB host.

Read the detailed description of the attached example (in main.c).

Regards,

Daniel