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6621E 可通过类似NEC/RCA方式编码成任何想要发送的红外码。非常灵活自由。 每帧红外码，由N个PWM调制波，每个PWM调制波由（m毫秒调制高电平，和n ms非调制的低电平组成） //TCL RCA编码格式 头+user+code+n_user+n_code uint32_t RCA_Code[] = { b_pre, //头帧 b_c3, b_c2, b_c1, b_c0, //用户码低4位 b_d7, b_d6, b_d5, b_d4, b_d3, b_d2, b_d1, b_d0, //遥控码 8位 b_nc3, b_nc2, b_nc1, b_nc0, // 用户码低4位 反码 b_nd7, b_nd6, b_nd5, b_nd4, b_nd3, b_nd2, b_nd1, b_nd0, //遥控码 8位反码 b_wait,//空间码 }; /*------------------------------------------------------------------------------ | 标准NEC编码格式：前导码 + 8位地址码 + 8位地址反码 + 8位命令码 + 8位命令反码 | -------------------------------------------------------------------------------*/ //红外遥控器编码 uint32_t NEC_code[] = { preamble, b0, b0, b0, b0, b0, b0, b0, b0, //addr b1, b1, b1, b1, b1, b1, b1, b1, //addr_contrary b0, b1, b0, b0, b0, b0, b1, b0, //command b1, b0, b1, b1, b1, b1, b0, b1, //command_contrary End, repeat0, repeat1, }; uint32_t REPEAT_code[] = { repeat0, repeat1, }; const uint32_t preamble = 0x00ab8156; //前导码：9ms carrier(high)，4.5ms低电平（low） const uint32_t b0 = 0x00158015; //'0'：0.56ms high, 0.56ms low，在编码中用作发送二进制0 const uint32_t b1 = 0x00408015; //'1': 0.56ms high, 1.69ms low, 在编码中用作发送二进制1 const uint32_t repeat0 = 0x00568156; //9ms high，2.25ms low const uint32_t repeat1 = 0x0e478015; //0.56ms high，96.19ms low const uint32_t End = 0x05F08015; //0.56ms high，40ms low #define _H (1) //输出调制高电平 #define _L (0) //输出非调制低电平 #define f0 (0) //预设频率0，此为38K ， #define f1 (1) //预设频率1，如50K const uint32_t PWM_Rca_preamble = ((((_L) << 15) | ((f0) << 14) | (38 * 4)) << 16) | (((_H) << 15) | ((f0) << 14) | (38 * 4)); // 4H+4L ms const uint32_t PWM_Rca_b0 = ((((_L) << 15) | ((f0) << 14) | (38 * 1)) << 16) | (((_H) << 15) | ((f0) << 14) | (38 / 2)); // 0.5H+1L ms const uint32_t PWM_Rca_b1 = ((((_L) << 15) | ((f0) << 14) | (38 * 2)) << 16) | (((_H) << 15) | ((f0) << 14) | (38 / 2)); // 0.5H+2L ms const uint32_t PWM_Rca_End = ((((_L) << 15) | ((f0) << 14) | (38 * 8)) << 16) | (((_H) << 15) | ((f0) << 14) | (38 / 2)); // 0.5H+8L ms 每个调制波的的计算可参考 上面 PWM_Rca_preamble 的组成方式。38对应38K的调制信号。 因为38K，表示一秒钟有38K个脉冲， 1ms 有38个脉冲， 因此，总脉冲数为 为 n(ms)x38. 同理，如56K调制，则需要调为 n(ms)x56.... RCA 配置 示例 uint8_t usr_code0, usr_code1; uint8_t key_code0, key_code1; usr_code0 = 0x0f; usr_code1 = usr_code0 ^ 0xff; key_code0 = ir_code; key_code1 = ir_code ^ 0xff; RCA_Code[b_pre] = PWM_Rca_preamble; RCA_Code[b_c3] = ((usr_code0 & (1 << 3)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_c2] = ((usr_code0 & (1 << 2)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_c1] = ((usr_code0 & (1 << 1)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_c0] = ((usr_code0 & (1 << 0)) ? PWM_Rca_b1 : PWM_Rca_b0); // RCA_Code[b_d7] = ((key_code0 & (1 << 7)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_d6] = ((key_code0 & (1 << 6)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_d5] = ((key_code0 & (1 << 5)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_d4] = ((key_code0 & (1 << 4)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_d3] = ((key_code0 & (1 << 3)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_d2] = ((key_code0 & (1 << 2)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_d1] = ((key_code0 & (1 << 1)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_d0] = ((key_code0 & (1 << 0)) ? PWM_Rca_b1 : PWM_Rca_b0); // RCA_Code[b_nc3] = ((usr_code1 & (1 << 3)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nc2] = ((usr_code1 & (1 << 2)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nc1] = ((usr_code1 & (1 << 1)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nc0] = ((usr_code1 & (1 << 0)) ? PWM_Rca_b1 : PWM_Rca_b0); // RCA_Code[b_nd7] = ((key_code1 & (1 << 7)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nd6] = ((key_code1 & (1 << 6)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nd5] = ((key_code1 & (1 << 5)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nd4] = ((key_code1 & (1 << 4)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nd3] = ((key_code1 & (1 << 3)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nd2] = ((key_code1 & (1 << 2)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nd1] = ((key_code1 & (1 << 1)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_nd0] = ((key_code1 & (1 << 0)) ? PWM_Rca_b1 : PWM_Rca_b0); RCA_Code[b_wait] = PWM_Rca_End;
ir_tx_config_t config = { .mode = FIFO, .carrier_freq0 = 38000, //38K .duty_cycle0 = (double)1 / 3, //占空比为1/3 .carrier_freq1 = 50000, //50K .duty_cycle1 = (double)1 / 2, .data_src = RCA_Code, .data_num = sizeof(RCA_Code) / sizeof(uint32_t), //总的输出周期数。 .bUse_intr = true, .fifo_trigger_lvl = 5, .fifo_cnt_intr_mask = FIFO_EMPTY_INTR_MASK,// FIFO_CNT_INTR_MASK, //IR_TX有5个中断源。根据选择配置 .callback[3] = irtx_fifo_cnt_callback, }; 中断 改为 FIFO_EMPTY_INTR_MASK 中断， 减少异常中断次数。 中断程序小修改如下 if (NULL != irtx_env.callback[3] && (irtx_env.fifo_cnt_intr_mask & 0x2)) { if (((HS_IR_TX->FIFO_SR) & 0x10) == 0x10) { //HS_IR_TX->FIFO_CNT_INT_MASK = 0; //关闭fifo计数中断，否则中断会不停到来 } else { HS_IR_TX->FIFO_CNT_INT_MASK = 0; //关闭fifo计数中断，否则中断会不停到来 } irtx_env.callback[3](); }
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6621E_ir_send_RCA-202306099769.rar