ML302_Cat-1_ML302_4G物联网STM32_

#include "project.h" /* 初始化 */ #define ML302_PWR_KEY_GPIO_PORT GPIOA #define ML302_PWR_KEY_GPIO_PIN GPIO_PIN_4 #define ML302_PWR_KEY_GPIO_RCC __HAL_RCC_GPIOA_CLK_ENABLE() #define ML320_PWR_KEY_OUT(v) (v?(ML302_PWR_KEY_GPIO_PORT->BSRR = ML302_PWR_KEY_GPIO_PIN):(ML302_PWR_KEY_GPIO_PORT->BRR = ML302_PWR_KEY_GPIO_PIN)) #define ML302_MOD_RST_GPIO_PORT GPIOA #define ML302_MOD_RST_GPIO_PIN GPIO_PIN_0 #define ML302_MOD_RST_GPIO_RCC __HAL_RCC_GPIOA_CLK_ENABLE() void ML302_CleanReceiveBuf(void); /* ML302 电源控制脚输出 */ void ML302_PWR_KEY_OUT(int v) { if(v){ ML302_PWR_KEY_GPIO_PORT->BSRR = ML302_PWR_KEY_GPIO_PIN; } else{ ML302_PWR_KEY_GPIO_PORT->BRR = ML302_PWR_KEY_GPIO_PIN; } } /* ML302 复位控制脚输出 */ void ML302_MOD_RST_OUT(int v) { if(v){ ML302_MOD_RST_GPIO_PORT->BSRR = ML302_MOD_RST_GPIO_PIN; } else{ ML302_MOD_RST_GPIO_PORT->BRR = ML302_MOD_RST_GPIO_PIN; } } /* 向ML302发送数据 */ void ML302_UART_Send(uint8_t *pbuf,uint32_t len) { while(len--){ while((USART3->SR&0X40)==0);//循环发送,直到发送完毕 USART3->DR = (unsigned char) *pbuf; pbuf++; } } /* ML302接收一个字节，这个函数放在中断中。 */ #define ML302_UART_RECEIVE_BUFF_LEN 128 uint8_t ML302_UART_ReceiveBuff[ML302_UART_RECEIVE_BUFF_LEN],ML302_UART_ReceiveCount; static uint8_t ReceiveByte0,ReceiveByte1; uint8_t Flag_Get_OK = 0,Flag_Get_0D0A = 0; void ML302_UART_ReceiveByte(uint8_t byte) { ML302_UART_ReceiveBuff[ML302_UART_ReceiveCount++] = byte; ReceiveByte1 = byte; if((ReceiveByte0 == 'O')&&(ReceiveByte1 == 'K')){ Flag_Get_OK = 1; } else if((ReceiveByte0 == '\r')&&(ReceiveByte1 == '\n')){ Flag_Get_0D0A = 1; } ReceiveByte0 = ReceiveByte1; if(ML302_UART_ReceiveCount >= (ML302_UART_RECEIVE_BUFF_LEN - 1)){ ML302_UART_ReceiveCount = 0; } } void ML302_IO_Init(void) { GPIO_InitTypeDef GPIO_Initure; ML302_MOD_RST_GPIO_RCC; ML302_PWR_KEY_GPIO_RCC; //开启GPIOB时钟 GPIO_Initure.Mode=GPIO_MODE_OUTPUT_PP; //推挽输出 GPIO_Initure.Pull=GPIO_PULLUP; //上拉 GPIO_Initure.Speed=GPIO_SPEED_HIGH; //高速 GPIO_Initure.Pin=ML302_PWR_KEY_GPIO_PIN; // HAL_GPIO_Init(ML302_PWR_KEY_GPIO_PORT,&GPIO_Initure); GPIO_Initure.Pin=ML302_MOD_RST_GPIO_PIN; // HAL_GPIO_Init(ML302_MOD_RST_GPIO_PORT,&GPIO_Initure); ML302_MOD_RST_OUT(1); //处于复位状态 ML302_PWR_KEY_OUT(1); //模组PWR_KEY输入低电平 } void ML302_Init(void) { USART3_Init(115200); ML302_IO_Init(); } enum{ ML302_RSP_NULL,//暂时还没有返回数据， ML302_RSP_TIMEOUT,//等待一段时间什么都没有 ML302_RSP_OK,//得到返回数据，但是不一定是想要的。 ML302_RSP_0D0A, ML302_RSP_CONNECT }; /* send_times 发送次数 */ uint8_t ML302_Send_ATCommand(uint8_t *buf,uint8_t len,uint32_t timeout,uint8_t send_times,uint8_t *expect) { uint8_t ret = ML302_RSP_NULL; static uint8_t state0 = 0,count = 0; static uint32_t nextticks = 0; if(state0 == 0){ ML302_CleanReceiveBuf();//发之前清理缓冲 ML302_UART_Send(buf,len); printf("ML302>>>:%s\r\n",buf); state0 = 1; nextticks = HAL_GetTick() + timeout; Flag_Get_0D0A = 0; Flag_Get_OK = 0; count++; } else if(state0 == 1){ if(HAL_GetTick() >= nextticks){ if(send_times == count){//多次发送之后 还是没有反应就返回 ret = ML302_RSP_TIMEOUT; count = 0; } state0 = 0; } else{ if(Flag_Get_0D0A && (strstr((const char*)ML302_UART_ReceiveBuff,(const char*)expect))){ ret = ML302_RSP_OK; state0 = 0; count = 0; } } } return ret; } /* 向OneNET平台发送 */ uint32_t ML302_LossOneNETRSP_Count = 0; uint8_t ML302_CheckOneNETRSP(void) { uint8_t ret = 0; if(HAL_GetTick() > ML302_LossOneNETRSP_Count){ ret = 1; } if(Flag_Get_0D0A && (strstr((const char*)ML302_UART_ReceiveBuff,(const char*)"zjj"))){ ML302_LossOneNETRSP_Count = HAL_GetTick() + 20000;//10s ML302_CleanReceiveBuf(); Flag_Get_0D0A = 0; printf("get onenet rsp\r\n"); } if(Flag_Get_0D0A && (strstr((const char*)ML302_UART_ReceiveBuff,(const char*)"test"))){ ML302_LossOneNETRSP_Count = HAL_GetTick() + 20000;//10s ML302_CleanReceiveBuf(); Flag_Get_0D0A = 0; printf("get onenet rsp\r\n"); } return ret; } void ML302_CleanReceiveBuf(void) { int i = 0; for(i = 0;i<ML302_UART_RECEIVE_BUFF_LEN;i++){ ML302_UART_ReceiveBuff[i] = 0; } ML302_UART_ReceiveCount = 0; } uint8_t ML302_GetTarget(uint8_t *str) { return (strstr((const void*)ML302_UART_ReceiveBuff,(const void*)str))?1:0; } uint8_t ML302_Connect_OneNET(uint8_t control) { static uint8_t state = 0,state0 = 0,nextstate,count = 0;//发送次数计数器 static uint32_t nextticks = 0; uint8_t ret = 0; control = control; switch(state) { case 0: ML302_MOD_RST_OUT(1);//处于非复位状态 HAL_Delay(1000); ML302_MOD_RST_OUT(0);//处于非复位状态 ML302_PWR_KEY_OUT(0);//模组PWR_KEY输入高电平 HAL_Delay(1000); ML302_PWR_KEY_OUT(1); nextticks = HAL_GetTick()+2005; nextstate = 1; printf("电源初始化1:完成\r\n"); break; case 1://开机延时2s if(HAL_GetTick() >= nextticks){ ML302_PWR_KEY_OUT(0); nextstate = 2; printf("电源初始化2:完成\r\n"); } break; case 2: switch(ML302_Send_ATCommand("AT\r\n",4,2000,5,"OK")) { case ML302_RSP_OK: nextstate = 3; printf("go to state3\r\n"); break; case ML302_RSP_TIMEOUT: nextstate = 0xff; break; } break; case 3: switch(ML302_Send_ATCommand("AT+CPIN?\r\n",10,2000,5,"OK")) { case ML302_RSP_OK: nextstate = 4; break; case ML302_RSP_TIMEOUT: nextstate = 0xff; break; } break; case 4: switch(ML302_Send_ATCommand("AT+CFUN?\r\n",strlen("AT+CFUN?\r\n"),2000,5,"OK")) { case ML302_RSP_OK: nextstate = 5; break; case ML302_RSP_TIMEOUT: nextstate = 0xff; break; } break; case 5: switch(ML302_Send_ATCommand("AT+CSQ=?\r\n",strlen("AT+CSQ=?\r\n"),2000,5,"OK")) { case ML302_RSP_OK: nextstate = 8; break; case ML302_RSP_TIMEOUT: nextstate = 0xff; break; } break; case 7: switch(ML302_Send_ATCommand("AT+CSQ?\r\n",strlen("AT+CSQ?\r\n"),2000,5,"OK")) { case ML302_RSP_OK: nextstate = 8; break; case ML302_RSP_TIMEOUT: nextstate = 0xff; break; } break; case 8: switch(ML302_Send_ATCommand("AT+CGDCONT=1,\"IP\",\"CMIOT\"\r\n",strlen("AT+CGDCONT