/** ################################################################### | |
** THIS BEAN MODULE IS GENERATED BY THE TOOL. DO NOT MODIFY IT. | |
** Filename : COM0.C | |
** Project : RTOSDemo | |
** Processor : MC9S12DP256BCPV | |
** Beantype : AsynchroSerial | |
** Version : Bean 02.231, Driver 01.08, CPU db: 2.87.283 | |
** Compiler : Metrowerks HC12 C Compiler | |
** Date/Time : 19/06/2005, 15:07 | |
** Abstract : | |
** This bean "AsynchroSerial" implements an asynchronous serial | |
** communication. The bean supports different settings of | |
** parity, word width, stop-bit and communication speed, | |
** user can select interrupt or polling handler. | |
** Communication speed can be changed also in runtime. | |
** The bean requires one on-chip asynchronous serial channel. | |
** Settings : | |
** Serial channel : SCI0 | |
** | |
** Protocol | |
** Init baud rate : 38400baud | |
** Width : 8 bits | |
** Stop bits : 1 | |
** Parity : none | |
** Breaks : Disabled | |
** | |
** Registers | |
** Input buffer : SCI0DRL [207] | |
** Output buffer : SCI0DRL [207] | |
** Control register : SCI0CR1 [202] | |
** Mode register : SCI0CR2 [203] | |
** Baud setting reg. : SCI0BD [200] | |
** Special register : SCI0SR1 [204] | |
** | |
** Input interrupt | |
** Vector name : INT_SCI0 | |
** Priority : 1 | |
** | |
** Output interrupt | |
** Vector name : INT_SCI0 | |
** Priority : 1 | |
** | |
** Used pins : | |
** ---------------------------------------------------- | |
** Function | On package | Name | |
** ---------------------------------------------------- | |
** Input | 89 | PS0_RxD0 | |
** Output | 90 | PS1_TxD0 | |
** ---------------------------------------------------- | |
** | |
** | |
** Used baud modes : | |
** ---------------------------------------------------- | |
** No. | Mode ID | Baud rate | |
** ---------------------------------------------------- | |
** 0 | Bm_38400baud | 38400baud | |
** 1 | Bm_19200baud | 19200baud | |
** 2 | Bm_9600baud | 9600baud | |
** 3 | Bm_4800baud | 4800baud | |
** ---------------------------------------------------- | |
** Contents : | |
** SetBaudRateMode - byte COM0_SetBaudRateMode(byte Mod); | |
** | |
** (c) Copyright UNIS, spol. s r.o. 1997-2002 | |
** UNIS, spol. s r.o. | |
** Jundrovska 33 | |
** 624 00 Brno | |
** Czech Republic | |
** http : www.processorexpert.com | |
** mail : info@processorexpert.com | |
** ###################################################################*/ | |
/* MODULE COM0. */ | |
#pragma MESSAGE DISABLE C4002 /* WARNING C4002: Result not used is ignored */ | |
#pragma MESSAGE DISABLE C4301 /* INFORMATION C4301: Inline expansion done for function call */ | |
#include "COM0.h" | |
#include "TickTimer.h" | |
#include "Byte1.h" | |
/* Definition of DATA and CODE segments for this bean. User can specify where | |
these segments will be located on "Build options" tab of the selected CPU bean. */ | |
#pragma DATA_SEG COM0_DATA /* Data section for this module. */ | |
#pragma CODE_SEG COM0_CODE /* Code section for this module. */ | |
#define OVERRUN_ERR 1 /* Overrun error flag bit */ | |
#define FRAMING_ERR 2 /* Framing error flag bit */ | |
#define PARITY_ERR 4 /* Parity error flag bit */ | |
#define CHAR_IN_RX 8 /* Char is in RX buffer */ | |
#define FULL_TX 16 /* Full transmit buffer */ | |
#define RUNINT_FROM_TX 32 /* Interrupt is in progress */ | |
#define FULL_RX 64 /* Full receive buffer */ | |
#define NOISE_ERR 128 /* Noise erorr flag bit */ | |
#define IDLE_ERR 256 /* Idle character flag bit */ | |
#define BREAK_ERR 512 /* Break detect */ | |
static word SerFlag; /* Flags for serial communication */ | |
/* Bits: 0 - OverRun error */ | |
/* 1 - Framing error */ | |
/* 2 - Parity error */ | |
/* 3 - Char in RX buffer */ | |
/* 4 - Full TX buffer */ | |
/* 5 - Running int from TX */ | |
/* 6 - Full RX buffer */ | |
/* 7 - Noise error */ | |
/* 8 - Idle character */ | |
/* 9 - Break detected */ | |
/* 10 - Unused */ | |
static word PrescHigh; | |
static byte NumMode; /* Number of selected baud mode */ | |
/* | |
** =================================================================== | |
** Method : HWEnDi (bean AsynchroSerial) | |
** | |
** Description : | |
** This method is internal. It is used by Processor Expert | |
** only. | |
** =================================================================== | |
*/ | |
static void HWEnDi(void) | |
{ | |
SCI0CR2_TE = 1; /* Enable transmitter */ | |
SCI0CR2_RE = 1; /* Enable receiver */ | |
SCI0CR2_RIE = 1; /* Enable recieve interrupt */ | |
} | |
/* | |
** =================================================================== | |
** Method : COM0_SetBaudRateMode (bean AsynchroSerial) | |
** | |
** Description : | |
** This method changes the channel communication speed (baud | |
** rate). This method can be used only if you specify a list | |
** of possible period settings at design time (see <Timing | |
** dialog box> - Runtime setting - from a list of values). | |
** Each of these settings constitutes a mode and Processor | |
** Expert^[TM] assigns them a mode identifier. The prescaler | |
** and compare values corresponding to each mode are | |
** calculated at design time. You may switch modes at | |
** runtime by referring only to a mode identifier. No | |
** run-time calculations are performed, all the calculations | |
** are performed at design time. | |
** Parameters : | |
** NAME - DESCRIPTION | |
** Mod - Timing mode to set | |
** Returns : | |
** --- - Error code, possible codes: | |
** ERR_OK - OK | |
** ERR_SPEED - This device does not work in | |
** the active speed mode | |
** =================================================================== | |
*/ | |
byte COM0_SetBaudRateMode(byte Mod) | |
{ | |
static const word COM0_PrescHigh[4] = {41,81,163,326}; | |
if(Mod >= 4) /* Is mode in baud mode list */ | |
return ERR_VALUE; /* If no then error */ | |
NumMode = Mod; /* New baud mode */ | |
PrescHigh = COM0_PrescHigh[Mod]; /* Prescaler in high speed mode */ | |
SCI0BD = PrescHigh; /* Set prescaler bits */ | |
return ERR_OK; /* OK */ | |
} | |
/* | |
** =================================================================== | |
** Method : COM0_Init (bean AsynchroSerial) | |
** | |
** Description : | |
** This method is internal. It is used by Processor Expert | |
** only. | |
** =================================================================== | |
*/ | |
void COM0_Init(void) | |
{ | |
PrescHigh = 41; /* Precaler in high speed mode */ | |
SerFlag = 0; /* Reset flags */ | |
NumMode = 0; /* Number of selected baud mode */ | |
/* SCI0CR1: LOOPS=0,SCISWAI=1,RSRC=0,M=0,WAKE=0,ILT=0,PE=0,PT=0 */ | |
SCI0CR1 = 64; /* Set the SCI configuration */ | |
/* SCI0SR2: ??=0,??=0,??=0,??=0,??=0,BRK13=0,TXDIR=0,RAF=0 */ | |
SCI0SR2 = 0; /* Set the Break Character Length and Transmitter pin data direction in Single-wire mode */ | |
SCI0SR1; /* Reset interrupt request flags */ | |
/* SCI0CR2: SCTIE=0,TCIE=0,RIE=0,ILIE=0,TE=0,RE=0,RWU=0,SBK=0 */ | |
SCI0CR2 = 0; /* Disable error interrupts */ | |
SCI0BD = PrescHigh; /* Set prescaler bits */ | |
HWEnDi(); /* Enable/disable device according to status flags */ | |
} | |
/* END COM0. */ | |
/* | |
** ################################################################### | |
** | |
** This file was created by UNIS Processor Expert 03.33 for | |
** the Motorola HCS12 series of microcontrollers. | |
** | |
** ################################################################### | |
*/ |