LPC23XXCAN全局验收滤波器设置说明(最新整理)

1、/*在标准的 lpc236x.h 文件中添加的 ram#define */#define can_mem_base0xe0038000#define can_sff_ram(*(volatile unsigned long *)(can_mem_base + 0x00) #define can_sff_grp_ram(*(volatile unsigned long *)(can_mem_base + 0x04) #define can_eff_ram(*(volatile unsigned long *)(can_mem_base + 0x08) #define can_eff_grp_ra

2、ms(*(volatile unsigned long *)(can_mem_base + 0x0c) #define can_eff_grp_rame(*(volatile unsigned long *)(can_mem_base + 0x10)/*该初始化配置的滤波器，可接受单个标准帧： 0x300可接受标准帧组：0x400-0x430可接受单个扩展帧：0x00000300可接受扩展帧组：0x00000400-0x00000430*/ void can_init( uint32 can_btr )pconp |= (1 13);/ enable clock to the peripher

3、al pinsel0 &= 0x0000000f;pinsel0 |= 0x0000005; / port0.01, function 0x01, port0.45, function 0x10can1mod = 1;/ reset cancan1ier = 0; / disable receive interruptcan1gsr = 0; / reset error counter when canxmod is in resetcan1btr = can_btr;can1mod =0x0; / can in normal operation modeinstall_irq(can_int

4、,(void *)can_handler,highest_priority);can1ier |= 0x81;/ enable receive interrupts,enable bus error interruptscan_afmr = accf_off ;/只能在验收滤波器旁路模式或验收滤波器关闭模式才能写查找表的区配置寄存器。can_sff_ram = 0x03001301; /单个标准帧 id：0x300、0x301(禁用). can_sff_grp_ram = 0x04000430;/标准帧 id 组：0x400、0x430.can_eff_ram = 0x00000300; /

5、单 个 扩 展 帧 id：0x00000300. can_eff_grp_rams = 0x00000400;/扩展帧组起始 id：0x00000400. can_eff_grp_rame = 0x00000430;/扩展帧组结束 id：0x00000430.can_sff_sa = 0x00; /标准单个标识符.can_sff_grp_sa=0x04;/标准标识符组，因为只有两个标准帧 id，占用了四字节ram。can_eff_sa=0x08;/扩展单个标识符，因为只有一个标准帧组，占用了四字节ram。can_eff_grp_sa = 0x0c;/扩展标识符组，因为只有一个单个扩展帧 id，

6、占用了四字节ram。can_endof_table=0x14;/af 表格结束，因为只有一个扩展帧组，占用了八字节ram。can_afmr = accf_on;“”“”at the end, xiao bian gives you a passage. minand once said, people who learn to learn are very happy people. in every wonderful life, learning is an eternal theme. as a professional clerical and teaching position, i

7、 understand the importance of continuous learning, life is diligent, nothing can be gained, only continuous learning can achieve better self. only by constantly learning and mastering the latest relevant knowledge, can employees from all walks of life keep up with the pace of enterprise development and innovate to meet the needs of the market. this document is also edite