使用Haawking IDE 新建DSC28034的iic示例程序

电子

`在湖人的开发版中，集成了TM1650驱动数码管的硬件，用户可以根据TM1650的数据手册，实现相应的时序，就可以点亮数码管，具体的新建工程的过程，详见我的帖子“ 使用Haawking IDE 新建一个LED闪烁的工程 - 中科昊芯 DSP - 电子技术论坛 - 广受欢迎的专业电子论坛! (elecfans.com)”TM1650数据手册详情看附件
程序的具体实现代码主函数如下：

/******************************************************************
文档名：HX_EXAM_DSC28034_IIC_TM1650_V0.0.1
D S P:dsc28034
IDE：haawking-workspace-V0.5.0
作用：数码管从0开始加到999循环，S101按下，最左边的数码管加1，S102按下，
最左边的数码管减1，S103按下，最左边的数码管显示清零，
S104按下，数码管的显示亮度增加。
说明：晶振频率为120M，IIC例程
版本：V0.0.1
时间：2021年3月3日 15:48
作者：shentingting
[url=home.php?mod=space&uid=136761]@mail[/url] :tingting.shen@mail.haawking.com
******************************************************************/
#include
#include "dsc_config.h"
#include "hx_rv32_dev.h"
#include "hx_rv32_type.h"
#include
#include "xcustom.h"
#include "IQmathLib.h"
#include "TM1650_IIC.h"
#include "timer0_base.h"
extern char keyVal,keyReg,LigntVal;
//void INTERRUPT cpu_timer0_isr(void);
int Tmp = 0;
char keyReg=0;
int main(void)
{
int i,j;
// volatile unsigned int i;
// DisableDog(); //disable watchdog
EALLOW;
P_SysCtrlRegs->INTOSC1TRIM.bit.FINETRIM = 0;
P_SysCtrlRegs->INTOSC2TRIM.bit.FINETRIM = 0;
EDIS;
InitSysCtrl();
// softResetIIC_BUS();
InitI2C_Gpio(); //io 初始化为IIC
I2CA_Init(); //HW IIC初始化，100KHz
LigntVal = 0x11; //BIT6到BIT4为亮度调节，BIT0是 1 开启/0关闭
TM1650_Send(CMD_SEG, LigntVal); //1级亮度，开启显示
TM1650_Send(DIG1, SEG7Table[0]); //GID1
TM1650_Send(DIG2, SEG7Table[0]); //GID2
TM1650_Send(DIG3, SEG7Table[0]); //GID3
TM1650_Send(DIG4, SEG7Table[0]); //GID4
Timer_Config( );
DINT;
InitPieCtrl();
IER_DISABLE(0xffff); //禁能所有中断
IFR_DISABLE(0xffff); //清所有中断标志位
InitPieVectTable(); //初始化中断向量表
EALLOW;
PieVectTable.TINT0 = &cpu_timer0_isr;
EDIS;
IER_ENABLE(M_INT1); //使能中断组1 13 14
PieCtrlRegs.PIEIER1.bit.INTx7 = 1; //使能中断组 1.7
EINT; //使能全局中断
ERTM; // Enable Global realtime interrupt DBGM
while(1){
if(timer_count >= 180)
{
timer_count = 0;
Tmp++;
if(Tmp > 999)
Tmp = 0;
TM1650_Send(DIG3,SEG7Table[Tmp/100]); //DIG3
TM1650_Send(DIG2,SEG7Table[(Tmp/10)%10]); //DIG2
TM1650_Send(DIG1,SEG7Table[Tmp%10]);
}
TM1650_Read(CMD_KEY,&keyVal);
if(keyVal == 0x44) //S101按下
{
keyReg++;
keyReg&=0x0f;
TM1650_Send(DIG4,SEG7Table[keyReg]);
for(i = 0;i < 1000;i++)
{
for(j = 0;j < 1000;j++)
{}
}
}
if(keyVal == 0x4c)//S102按下，
{
keyReg--;
keyReg&=0x0f;
TM1650_Send(DIG4,SEG7Table[keyReg]);//1级亮度，开启显示
for(i = 0;i < 1000;i++)
{
for(j = 0;j < 1000;j++)
{}
}
}
if(keyVal == 0x54)//S103按下
{
keyReg=0;
TM1650_Send(DIG4,SEG7Table[keyReg]); //DIG4 显示keyReg 变量
for(i = 0;i < 1000;i++)
{
for(j = 0;j < 1000;j++)
{}
}
}
if(keyVal == 0x5C)
{
LigntVal = (LigntVal+0x10)&0x7F; //TM1650的CMD_SEG寄存器，其高四位为亮度调节，最后1位是开启、关闭显示
TM1650_Send(CMD_SEG,LigntVal);//调节亮度，开启显示
for(i = 0;i < 1000;i++)
{
for(j = 0;j < 1000;j++)
{}
}
}
}
return 0;
}
// ----------------------------------------------------------------------------

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#include "TM1650_IIC.h"
#define SLAVE_ADDRESS 0x36
I2CSlaveMSG TM1650;//定义一个TM1650结构体
I2CSlaveMSG AT24C02Msg;
I2CSlaveMSG *PtrMsg[]={&TM1650,&AT24C02Msg};//定义一个指针数组，存放I2C结构体，这里包含TM1650和EEPROM
char keyVal,LigntVal;
uint8_t SEG7Table[]={
//共阴极
// 0x3f,0x06,0x5b,0x4f,
// 0x66,0x6d,0x7d,0x07,
// 0x7f,0x6f,0x77,0x7c,
// 0x39,0x5e,0x79,0x71
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71
//共阳极
// 0xc0,0xf9,0xa4,0xb0,
// 0x99,0x92,0x82,0xf8,
// 0x80,0x90,0x88,0x83,
// 0xc6,0xa1,0x86,0x8e,
};
void InitI2C_Gpio()
{
EALLOW;
GpioCtrlRegs.GPBPUD.bit.GPIO32 = 0; // Enable pull-up for GPIO32 (SDAA)
GpioCtrlRegs.GPBPUD.bit.GPIO33 = 0; // Enable pull-up for GPIO33 (SCLA)
GpioCtrlRegs.GPBQSEL1.bit.GPIO32 = 3; // Asynch input GPIO32 (SDAA)
GpioCtrlRegs.GPBQSEL1.bit.GPIO33 = 3; // Asynch input GPIO33 (SCLA)
GpioCtrlRegs.GPBMUX1.bit.GPIO32 = 1; // Configure GPIO32 for SDAA operation
GpioCtrlRegs.GPBMUX1.bit.GPIO33 = 1; // Configure GPIO33 for SCLA operation
EDIS;
}
void I2CA_Init(void)
{
EALLOW;
SysCtrlRegs.PCLKCR0.bit.I2CAENCLK = 1; // Turn I2C module clock on
EDIS;
I2caRegs.I2CIC_ENABLE.bit.ENABLE = 0; //关闭I2C
I2caRegs.I2CIC_CON.bit.IC_SLAVE_DISABLE = 1; //禁止从机模式
I2caRegs.I2CIC_CON.bit.IC_RESTART_EN = 1; //使能重启模式
I2caRegs.I2CIC_CON.bit.IC_10BITADDR_MASTER_or_IC_10BITADDR_MASTER_rd_only = 0;//使用 7 bits 地址格式
I2caRegs.I2CIC_CON.bit.SPEED = 1; //设置标准模式
I2caRegs.I2CIC_CON.bit.MASTER_MODE = 1; //主设备使能
// I2caRegs.I2CIC_TAR.bit.IC_TAR = SLAVE_ADDRESS;
I2caRegs.I2CIC_SS_SCL_HCNT.bit.IC_SS_SCL_HCNT = 0x000a; //设置速度
I2caRegs.I2CIC_SS_SCI_LCNT.bit.IC_SS_SCL_LCNT = 0x000a;
//I2caRegs.I2CIC_TAR.bit.IC_TAR = 0;
I2caRegs.I2CIC_TX_TL.bit.TX_TL = 4; //入口深度
I2caRegs.I2CIC_RX_TL.bit.RX_TL = 4;
// I2caRegs.I2CIC_RAW_INTR_STAT.bit.MST_ON_HOLD=1;
I2caRegs.I2CIC_RAW_INTR_STAT.bit.MST_ON_HOLD=1;
// I2caRegs.I2CIC_DATA_CMD.bit.STOP = 1;
// I2caRegs.I2CIC_ACK_GENERAL_CALL.bit.ACK_GEN_CALL = 1; //设置ack应答
I2caRegs.I2CIC_ENABLE.bit.ENABLE = 1; //开启I2C
}
//IIC底层发送函数
//IIC Maste Mode，发送模式
//I2caRegs.I2CCNT 为发送的字节长度，不包括从器件的物理地址
//发送格式：START ADDRESS CONTROL_BYTE DA_BYTE STOP
//当写入I2caRegs.I2CMDR.all = 0x2E20，硬件IIC进行操作，STOP信号结束
Uint16 I2CA_Tx_STOP(struct I2CSlaveMSG *msg)
{
Uint16 i;
// if(I2caRegs.I2CIC_RAW_INTR_STAT.bit.STOP_DET == 1)
// {
// return I2C_STP_NOT_READY_ERROR;
// }
// if(I2caRegs.I2CIC_ENABLE_STATUS.bit.IC_EN ==0)
I2caRegs.I2CIC_ENABLE.bit.ENABLE = 0; //关闭I2C
I2caRegs.I2CIC_TAR.bit.IC_TAR = msg->SlavePHYAddress; //设置访问从器件地址，物理地址 //要发送的地址主机
I2caRegs.I2CIC_ENABLE.bit.ENABLE = 1; //开启I2C
for(i=0;i<((msg->Len)-1);i++) // 小于等于4个byte的数据
{
I2caRegs.I2CIC_DATA_CMD.bit.DAT = msg->MsgOutBuffer[i];
}
// I2caRegs.I2CIC_DATA_CMD.all = 0;
// I2caRegs.I2CIC_DATA_CMD.all = 0;
// I2caRegs.I2CIC_DATA_CMD.all = msg->SlavePHYAddress;
I2caRegs.I2CIC_DATA_CMD.all = (msg->MsgOutBuffer[msg->Len - 1]|0x200);
while(0 == I2caRegs.I2CIC_STATUS.bit.TFE);
for(i = 0;i < 2000;i++)
{
}
return I2C_SUCCESS;
}
Uint16 I2CA_Rxdata_STOP(struct I2CSlaveMSG *msg)
{
I2caRegs.I2CIC_ENABLE.bit.ENABLE = 0;
I2caRegs.I2CIC_TAR.bit.IC_TAR = msg->SlavePHYAddress; //设置访问从器件地址，物理地址
I2caRegs.I2CIC_ENABLE.bit.ENABLE = 1;
I2caRegs.I2CIC_DATA_CMD.bit.DAT = 0X49;
I2caRegs.I2CIC_DATA_CMD.bit.CMD = 1;
// I2caRegs.I2CIC_DATA_CMD.all = (0x100|;
while(0==I2caRegs.I2CIC_STATUS.bit.RFNE);
return I2C_SUCCESS;
}
void TM1650_Send(char addr,char data)
{
TM1650.Len = 1; //1个数据（不含物理地址）
TM1650.SlavePHYAddress = addr;
TM1650.MsgOutBuffer[0] = data; //8级亮度开启显示
I2CA_Tx_STOP(&TM1650); //发送数据，带STOP
TM1650.IIC_TimerOUT = 0;
TM1650.MasterStatus = IIC_WRITE;
}
void TM1650_Read(char addr,char *data)
{
Uint16 i;
TM1650.Len = 1;
TM1650.SlavePHYAddress = addr;
//*data = I2caRegs.I2CIC_DATA_CMD.bit.DAT;
I2CA_Rxdata_STOP(&TM1650);//发送数据，带STOP
*data = I2caRegs.I2CIC_DATA_CMD.bit.DAT;
TM1650.IIC_TimerOUT = 0;
TM1650.MasterStatus = IIC_READ_STEP2;
TM1650.MasterStatus = IIC_READ_STEP3;
// while(0==I2caRegs.I2CIC_STATUS.bit.RFNE)
// {
// //*data = I2caRegs.I2CIC_DATA_CMD.bit.DAT;
// };
for(i = 0;i < 2000;i++)
{
}
}
#define DELAY_FOR 10 // 60Mhz 43.5K
void softResetIIC_BUS()
{
Uint16 i,j;
EALLOW;
SDA_H();
SDAMUX = 0;
SDADIR = 1;
SDA_L();
CLKMUX = 0;
CLKDIR =1;
EDIS;
SDA_H();for(j=0;j
CLK_H();for(j=0;j
SDA_L();for(j=0;j
CLK_L();for(j=0;j
SDA_H();for(j=0;j
for(i=0;i<9;i++)
{
CLK_H();for(j=0;j
CLK_L();for(j=0;j
}
CLK_H();for(j=0;j
SDA_L();for(j=0;j
CLK_L();for(j=0;j
CLK_H();for(j=0;j
SDA_H();for(j=0;j
CLK_L();for(j=0;j
//软件复位完毕之后，要重新初始化IIC IO 为IIC 硬件IO口调用
InitI2C_Gpio();
}

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/*
* TM1650_IIC.h
*
* Created on: 2021年2月9日
* Author: FGDA
*/
#ifndef TM1650_IIC_H_
#define TM1650_IIC_H_
#include "DSC28034_Device.h"
#include "DSC28034_Examples.h"
#define I2C_ERROR 0xFFFF
#define I2C_ARB_LOST_ERROR 0x0001
#define I2C_NACK_ERROR 0x0002
#define I2C_BUS_BUSY_ERROR 0x1000
#define I2C_STP_NOT_READY_ERROR 0x5555
#define I2C_NO_FLAGS 0xAAAA
#define I2C_SUCCESS 0x0000
// Clear Status Flags
#define I2C_CLR_AL_BIT 0x0001
#define I2C_CLR_NACK_BIT 0x0002
#define I2C_CLR_ARDY_BIT 0x0004
#define I2C_CLR_RRDY_BIT 0x0008
#define I2C_CLR_SCD_BIT 0x0020
// Interrupt Source Messages
#define I2C_NO_ISRC 0x0000
#define I2C_ARB_ISRC 0x0001
#define I2C_NACK_ISRC 0x0002
#define I2C_ARDY_ISRC 0x0003
#define I2C_RX_ISRC 0x0004
#define I2C_TX_ISRC 0x0005
#define I2C_SCD_ISRC 0x0006
#define I2C_AAS_ISRC 0x0007
// I2CMSG structure defines
#define I2C_NO_STOP 0
#define I2C_YES_STOP 1
#define I2C_RECEIVE 0
#define I2C_TRANSMIT 1
#define I2C_MAX_BUFFER_SIZE 4
// I2C Slave State defines
#define I2C_NOTSLAVE 0
#define I2C_ADDR_AS_SLAVE 1
#define I2C_ST_MSG_READY 2
// I2C Slave Receiver messages defines
#define I2C_SND_MSG1 1
#define I2C_SND_MSG2 2
// I2C State defines
#define I2C_IDLE 0
#define I2C_SLAVE_RECEIVER 1
#define I2C_SLAVE_TRANSMITTER 2
#define I2C_MASTER_RECEIVER 3
#define I2C_MASTER_TRANSMITTER 4
// I2C Message Commands for I2CMSG struct
#define I2C_MSGSTAT_INACTIVE 0x0000
#define I2C_MSGSTAT_SEND_WITHSTOP 0x0010
#define I2C_MSGSTAT_WRITE_BUSY 0x0011
#define I2C_MSGSTAT_SEND_NOSTOP 0x0020
#define I2C_MSGSTAT_SEND_NOSTOP_BUSY 0x0021
#define I2C_MSGSTAT_RESTART 0x0022
#define I2C_MSGSTAT_READ_BUSY 0x0023
// Generic defines
#define I2C_TRUE 1
#define I2C_FALSE 0
#define I2C_YES 1
#define I2C_NO 0
#define I2C_DUMMY_BYTE 0
//--------------------------------------------
// Structures
//--------------------------------------------
// I2C Message Structure
struct I2CMSG {
Uint16 MsgStatus; // Word stating what state msg is in:
// I2C_MSGCMD_INACTIVE = do not send msg
// I2C_MSGCMD_BUSY = msg start has been sent,
// awaiting stop
// I2C_MSGCMD_SEND_WITHSTOP = command to send
// master trans msg complete with a stop bit
// I2C_MSGCMD_SEND_NOSTOP = command to send
// master trans msg without the stop bit
// I2C_MSGCMD_RESTART = command to send a restart
// as a master receiver with a stop bit
Uint16 SlaveAddress; // I2C address of slave msg is intended for
Uint16 NumOfBytes; // Num of valid bytes in (or to be put in MsgBuffer)
Uint16 MemoryHighAddr; // EEPROM address of data associated with msg (high byte)
Uint16 MemoryLowAddr; // EEPROM address of data associated with msg (low byte)
Uint16 MsgBuffer[I2C_MAX_BUFFER_SIZE]; // Array holding msg data - max that
// MAX_BUFFER_SIZE can be is 4 due to
// the FIFO's
};
#define IIC_NODE_NUM 2 //IIC节点数，2个，分别是 TM1650/AT24C02
#define AT24CO2_TIMER_OUT 3 //ms为单位
#define IIC_RST_BIT 0X0020 //IIC 复位
//S101 S102在TM1650扫描下的返回键码值
#define S101_CODE 0x44
#define S102_CODE 0x4C
#define S100_CODE 0x00//S100为独立按键，按下为 0x00
extern char keyVal,keyReg,LigntVal;
// Status Flags
#define I2C_AL_BIT 0x0001
#define I2C_NACK_BIT 0x0002
#define I2C_ARDY_BIT 0x0004
#define I2C_RRDY_BIT 0x0008
#define I2C_SCD_BIT 0x0020
// I2C State defines
#define IIC_IDLE 0
#define IIC_WRITE 1
#define IIC_READ_STEP1 2
#define IIC_READ_STEP2 3
#define IIC_READ_STEP3 4
#define IIC_BUS_BUSY 5
#define IIC_BUS_ERROR 6
//与TM1650有关的物理地址（需要右移动1位进行标准的IIC操作；标准IIC 的 LSB为读写位，高7位为物理地址位）
#define CMD_SEG (0X48)>>1 //显示模式 ADDR
#define CMD_KEY (0X49)>>1 //按键模式 ADDR 0x24
//数码管右边第一个定义为DIG1
//#define DIG1 (0X68)>>1 //DIG1 ADDR
//#define DIG2 (0X6A)>>1 //DIG2 ADDR
//#define DIG3 (0X6C)>>1 //DIG3 ADDR
//#define DIG4 (0X6E)>>1 //DIG4 ADDR
//数码管左边第一个定义为DIG1
#define DIG1 (0X6E)>>1 //DIG1 ADDR
#define DIG2 (0X6C)>>1 //DIG2 ADDR
#define DIG3 (0X6A)>>1 //DIG3 ADDR
#define DIG4 (0X68)>>1 //DIG4 ADDR
//---------------------------------------------------
//SDA采用GPIO32
#define SDAGPIO GPIO32
#define SDAMUX GpioCtrlRegs.GPBMUX1.bit.SDAGPIO
#define SDADIR GpioCtrlRegs.GPBDIR.bit.SDAGPIO
#define SDA_H() GpioDataRegs.GPBSET.bit.SDAGPIO=1
#define SDA_L() GpioDataRegs.GPBCLEAR.bit.SDAGPIO =1
//CLK采用GPIO33
#define CLKGPIO GPIO33
#define CLKMUX GpioCtrlRegs.GPBMUX1.bit.CLKGPIO
#define CLKDIR GpioCtrlRegs.GPBDIR.bit.CLKGPIO
#define CLK_H() GpioDataRegs.GPBSET.bit.CLKGPIO=1
#define CLK_L() GpioDataRegs.GPBCLEAR.bit.CLKGPIO =1
// I2C Message Structure
typedef struct I2CSlaveMSG{
Uint16 IntSRC[10]; //中断源测试用
Uint16 IntSRCCnt; //中断源记录测试用
Uint16 MasterStatus; //自行软件定义的IIC状态
Uint16 SlavePHYAddress; //IIC物理地址（硬件地址）
Uint16 LogicAddr; //类似于EEPROM，需要提供逻辑地址
Uint16 Len; //操作数据的长度（不含物理地址）
Uint16 MsgInBuffer[4]; //发送数组，最大4个深度
Uint16 MsgOutBuffer[4];//接收数组，最大4个深度
Uint16 IIC_TimerOUT; //软件定义的超时变量，在1ms定时器中计数
}I2CSlaveMSG;
extern I2CSlaveMSG *PtrMsg[];
extern I2CSlaveMSG TM1650;
extern char *IIC_ISR_String[];
extern uint8_t SEG7Table[];
void InitI2C_Gpio(void);
void I2CA_Init(void);
Uint16 I2CA_Tx_STOP(struct I2CSlaveMSG *msg);
Uint16 I2CA_Rxdata_STOP(struct I2CSlaveMSG *msg);
void softResetIIC_BUS(void);
void TM1650_Send(char addr,char data);
void TM1650_Read(char addr, char *data);
#endif /* TM1650_IIC_H_ */