Hello,
I use UART and I confirm that I would like to be able to assign the Slave code from DipSw so that I can exchange slave devices without having to reprogram the 'Slave Id' property.
I noticed a possibility by changing the code of 'ASl1.c' generated by Processor Expert.
If I insert an external variable visible from 'main.c' called, for example, Code_Id in the code ASl1.c and subsequently modifying the method 'ASl1_AsynchroSeSl (component AsynchroSlave)' like so:
** This component module is generated by Processor Expert. Do not modify it.
/*!
** @file ASl1.c
** @version 01.33
** @brief
** This component "AsynchroSlave" implements SLAVE part of asynchronous
** serial master-slave communication.
*/
/*!
** @addtogroup ASl1_module ASl1 module documentation
** @{
*/
/* MODULE ASl1. */
/* SerFlag bits */
#define OVERRUN_ERR 0x01U /* Overrun error flag bit */
#define COMMON_ERR 0x02U /* Common error of RX */
#define CHAR_IN_RX 0x04U /* Char is in RX buffer */
#define FULL_TX 0x08U /* Full transmit buffer */
static volatile byte SerFlag; /* Flags for serial communication */
/* Bit 0 - Overrun error */
/* Bit 1 - Common error of RX */
/* Bit 2 - Char in RX buffer */
/* Bit 3 - Full TX buffer */
static ASl1_TComData BufferRead; /* Input char for SCI commmunication */
static bool SelSlave; /* Device is selected */
static void AsynchroSeSl(byte *Flg, byte Num); /* Prototype of the function AsynchroSeSl */
extern byte Code_Id; // New external variable
.
.
.
.
/*
** ===================================================================
** Method : ASl1_AsynchroSeSl (component AsynchroSlave)
**
** Description :
** Compares the received Slave ID with it's own ID and sets the
** appropriate flags.
** This method is internal. It is used by Processor Expert only.
** ===================================================================
*/
static void AsynchroSeSl(byte *Flg, byte Num)
{
if (Num == ASl1_SLAVE_ID) { /* Is Num parametr equal as address of slave? */
if (Num == Code_Id) { // I replace the constant 'ASl1_SLAVE_ID' with my external variable
*Flg |= ON_SELECT; /* Set flag */
SelSlave = TRUE; /* Slave is selected */
} else {
if (SelSlave == TRUE) { /* Is slave selected? */
*Flg |= ON_UNSELECT; /* Set flag */
}
SelSlave = FALSE; /* Slave is not selected */
}
}
It might work, I haven't tried it yet ...:smileywink:
