- static rt_thread_t led_thread = RT_NULL;
- void LedInit(void)
- {
- gpio_init_type gpio_init_struct;
- /* enable the led clock */
- crm_periph_clock_enable(CRM_GPIOC_PERIPH_CLOCK, TRUE);
- /* set default parameter */
- gpio_default_para_init(&gpio_init_struct);
- /* configure the led gpio */
- gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;
- gpio_init_struct.gpio_out_type = GPIO_OUTPUT_PUSH_PULL;
- gpio_init_struct.gpio_mode = GPIO_MODE_OUTPUT;
- gpio_init_struct.gpio_pins = GPIO_PINS_2|GPIO_PINS_3|GPIO_PINS_5;
- gpio_init_struct.gpio_pull = GPIO_PULL_NONE;
- gpio_init(GPIOC, &gpio_init_struct);
- }
- static void led_thread_entry(void *parameter)
- {
- while (1)
- {
- gpio_bits_write(GPIOC, GPIO_PINS_2|GPIO_PINS_3|GPIO_PINS_5, (confirm_state)!gpio_output_data_bit_read(GPIOC, GPIO_PINS_2|GPIO_PINS_3|GPIO_PINS_5));
- rt_thread_mdelay(1000);
- rt_kprintf("led blink\r\n");
- }
- }
- void LedThreadStart(void)
- {
- led_thread = rt_thread_create( "led", /*线程名字*/
- led_thread_entry,/*线程入口函数*/
- RT_NULL,/*线程入口函数参数*/
- 256, /*线程栈大小*/
- 4 , /*线程优先级*/
- 20); /*线程时间片*/
- rt_thread_startup (led_thread);
- }
（2）adc初始化以及adc线程
- static rt_thread_t adc_thread = RT_NULL;
- static uint8_t adc_data[12];
- void AdcGpioInit(void)
- {
- /* enable the clock */
- crm_periph_clock_enable(CRM_GPIOA_PERIPH_CLOCK, TRUE);
-
- gpio_init_type gpio_init_struct;
- /* set default parameter */
- gpio_default_para_init(&gpio_init_struct);
- /* configure the led gpio */
- gpio_init_struct.gpio_mode = GPIO_MODE_ANALOG;
- gpio_init_struct.gpio_pins = GPIO_PINS_1 ;
- gpio_init(GPIOA, &gpio_init_struct);
- }
- void AdcConfig(void)
- {
- adc_base_config_type adc_base_struct;
- crm_periph_clock_enable(CRM_ADC1_PERIPH_CLOCK, TRUE);
- crm_adc_clock_div_set(CRM_ADC_DIV_6);
- adc_base_default_para_init(&adc_base_struct);
- adc_base_struct.sequence_mode = FALSE;
- adc_base_struct.repeat_mode = FALSE;
- adc_base_struct.data_align = ADC_RIGHT_ALIGNMENT;
- adc_base_struct.ordinary_channel_length = 1;
- adc_base_config(ADC1, &adc_base_struct);
- adc_ordinary_conversion_trigger_set(ADC1, ADC12_ORDINARY_TRIG_SOFTWARE, TRUE);
- adc_tempersensor_vintrv_enable(TRUE);
- adc_enable(ADC1, TRUE);
-
- adc_calibration_init(ADC1);
- while(adc_calibration_init_status_get(ADC1));
-
- adc_calibration_start(ADC1);
- while(adc_calibration_status_get(ADC1));
- }
- uint16_t AdcSample(uint8_t channel)
- {
- adc_ordinary_channel_set(ADC1, (adc_channel_select_type)channel, 1, ADC_SAMPLETIME_239_5);
- adc_ordinary_software_trigger_enable(ADC1,TRUE);
- while(!adc_flag_get(ADC1, ADC_CCE_FLAG));
- adc_flag_clear(ADC1, ADC_CCE_FLAG);
- return adc_ordinary_conversion_data_get(ADC1);
- }
- void AdcInit(void)
- {
- AdcGpioInit();
- AdcConfig();
- }
- static void adc_thread_entry(void *parameter)
- {
- uint16_t ref=0;
- float vdd=0;
- float ch16=0;
- float ch1=0;
- uint16_t part1=0,part2=0;
-
- int result;
- uint8_t *p=(uint8_t *)parameter;
- while(1)
- {
- ref=AdcSample(ADC_CHANNEL_17);
- vdd=1.2/(float)ref*4095;
-
- part1=(uint32_t)vdd;
- part2=vdd*1000-part1*1000;
- rt_kprintf("\r\nVdd=%d.%d V\r\n",part1,part2);
-
- rt_memcpy(&p[0],(uint8_t *)&part1,2);
- rt_memcpy(&p[2],(uint8_t *)&part2,2);
- ch1=AdcSample(ADC_CHANNEL_1)*vdd / 4095;
- part1=(uint32_t)ch1;
- part2=ch1*1000-part1*1000;
- rt_kprintf("Channel 1=%d.%d V\r\n",part1,part2);
-
- rt_memcpy(&p[4],(uint8_t *)&part1,2);
- rt_memcpy(&p[6],(uint8_t *)&part2,2);
-
-
- ch16=AdcSample(ADC_CHANNEL_16)*vdd / 4095;
- part1=(uint32_t)ch16;
- part2=ch16*1000-part1*1000;
- rt_kprintf("Channel 16=%d.%d V\r\n",part1,part2);
-
- rt_memcpy(&p[8],(uint8_t *)&part1,2);
- rt_memcpy(&p[10],(uint8_t *)&part2,2);
-
- extern rt_mq_t adc_to_oled_mq;
-
- result = rt_mq_send(adc_to_oled_mq, p,12);
- if (result != RT_EOK)
- {
- rt_kprintf("%s,send mq err\r\n",adc_thread->name);
- }
- else
- {
- rt_kprintf("%s,send mq success\r\n",adc_thread->name);
- }
-
- rt_memset(p,'\0',12);
-
- rt_thread_mdelay(2000);
- }
- }
- void AdcThreadStart(void)
- {
- adc_thread = rt_thread_create("adc",
- adc_thread_entry,
- &adc_data,
- 512,
- 5,
- 20);
-
- rt_thread_startup (adc_thread);
- }
（3）oled初始化、oled线程、消息队列创建
- static rt_thread_t oled_thread=RT_NULL;
- rt_mq_t adc_to_oled_mq=RT_NULL;
- static uint8_t oled_data[12];
- static char temp[16];
- static void oled_thread_entry(void *parameter)
- {
- uint8_t *p =(uint8_t *)parameter;
-
- while(1)
- {
- if(rt_mq_recv(adc_to_oled_mq,p,12,RT_WAITING_FOREVER)==RT_EOK)
- {
- rt_kprintf("%s,recv message queue \r\n",oled_thread->name);
-
- rt_memset(temp,' ',sizeof(temp));
- rt_sprintf(temp,"Vdd=%d.%d V",*(uint16_t*)(&p[0]),*(uint16_t*)(&p[2]));
- OledShowString(10,0,temp,16);
- rt_kprintf("%s\r\n",temp);
-
- rt_memset(temp,' ',sizeof(temp));
- rt_sprintf(temp,"Ch1=%d.%d V",*(uint16_t*)(&p[4]),*(uint16_t*)(&p[6]));
- OledShowString(10,2,temp,16);
- rt_kprintf("%s\r\n",temp);
-
- rt_memset(temp,' ',sizeof(temp));
- rt_sprintf(temp,"Ch16=%d.%d V",*(uint16_t*)(&p[8]),*(uint16_t*)(&p[10]));
- OledShowString(10,4,temp,16);
- rt_kprintf("%s\r\n",temp);
- }
- }
- }
- void OledThreadStart(void)
- {
- adc_to_oled_mq=rt_mq_create("adc_oled", 12,1, RT_IPC_FLAG_PRIO);
-
- oled_thread= rt_thread_create("oled",oled_thread_entry,oled_data,512,7,20);
-
- rt_thread_startup(oled_thread);
- }
4、现象
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