热敏打印机应用笔记

热敏电打印机在PS机上应用比较广泛。造型需要考滤的参数有:

1、打印方式:热敏,针式等等;

2、打印纸度:影响一行能打的字数;

3、打印密度:影响线的粗细,单位 点/mm 或是 点/行

4、打印头的寿命:

5、有效打印宽度:实际可打印的字符宽度;

6、走纸速度:即打速度;

7、支持的字符集: 中文 / 英文

8、接口形式:并/串 TLL/232

9、功耗:

10、外形及安装方式:

11、资质认证:如防爆场合

 

*炜-煌 *E9* (多来点星星以免打广告) 打印机适用防爆场合,硬件连接很简单,主要是代码调试,格式对齐上比较费纸,呵呵:

1、调试时最就是单片机与打印机独立供电,在电打印过程序中打印机电流很厉害(热敏打印的缺点),1.5A左右,搞不好会把单片机搞死掉或是会导致打印终止。最好用线性电源供电可以观察电流;

2、程序中发送打印数据前先选择字库码的类型;

3、打印应该注意打印机最长能打印多少个字符,以免加上行间距;

 

#include "stm32f10x.h"
#include "misc.h"
#include "system_stm32f10x.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x_rcc.h"
#include "stm32f10x_usart.h"
#include "fifo.h"
#include "string.h"

#define  MAX_LINE             13   

#define  EnableData()         USART_ITConfig(TicketPrintUart, USART_IT_TXE, ENABLE)   
#define  IsPrinterBusy()      GPIO_ReadInputDataBit(TicketPrintBusyGPIO, TicketPrintBusyPin)          
void  TicketPrinterInit(void);
u8       TicketPrinterWrite(u8 **dp);
void  TicketPrinterTest(void);

#define  TicketPrintIRQ       USART2_IRQHandler     

#define  TicketPrintUartIOClk RCC_APB2Periph_GPIOA 

#define  TicketPrintUartClk   RCC_APB1Periph_USART2

#define  TicketPrintTxGPIO    GPIOA                 

#define  TicketPrintBusyGPIO  GPIOA
#define  TicketPrintTxPin     GPIO_Pin_2
#define  TicketPrintBusyPin   GPIO_Pin_3
#define  TicketPrintUart      USART2                 
#define  TicketPrintIRQn      USART2_IRQn

                                 
static void TicketPrinterIOInit(void)
{
    USART_InitTypeDef USART_InitStructure;
    NVIC_InitTypeDef NVIC_InitStructure;
    GPIO_InitTypeDef GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(TicketPrintUartIOClk | RCC_APB2Periph_AFIO, ENABLE);
    RCC_APB1PeriphClockCmd(TicketPrintUartClk, ENABLE);

    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
    NVIC_InitStructure.NVIC_IRQChannel = TicketPrintIRQn;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);

    GPIO_InitStructure.GPIO_Pin = TicketPrintBusyPin; //Printor Busy
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(TicketPrintBusyGPIO, &GPIO_InitStructure);
    GPIO_InitStructure.GPIO_Pin = TicketPrintTxPin;   //TX2   
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(TicketPrintTxGPIO, &GPIO_InitStructure);

    USART_InitStructure.USART_BaudRate = 9600;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl =
            USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;

    USART_Init(TicketPrintUart, &USART_InitStructure);
    FifoInit(&PrintFifo, sizeof(PrintFifo.data));
    USART_Cmd(TicketPrintUart, ENABLE);
}

void TicketPrintIRQ(void)
{
    u8 ch;
    if (USART_GetITStatus(TicketPrintUart, USART_IT_TXE) != RESET)
    {
        if(!IsPrinterBusy())
        {
         if(!FifoRead(&PrintFifo, &ch))
             TicketPrintUart->DR = (uint16_t)0x01FF & ch;
         else
             USART_ITConfig(TicketPrintUart, USART_IT_TXE, DISABLE);
     }
    }       
}

 

 

//测试代码

 

test[] = {“stm32 单片机”};

for(y = 0; y < sizeof(test); y++)

FifoWrite(&PrintFifo,  test[y]);

FifoWrite(&PrintFifo, '\n');
EnableData();

posted on 2013-05-22 16:52  Worldsing  阅读(770)  评论(0编辑  收藏  举报