diff options
Diffstat (limited to 'bsp/mb9bf500r/adc.c')
| -rw-r--r-- | bsp/mb9bf500r/adc.c | 92 |
1 files changed, 46 insertions, 46 deletions
diff --git a/bsp/mb9bf500r/adc.c b/bsp/mb9bf500r/adc.c index 03017a1030..afb1f47210 100644 --- a/bsp/mb9bf500r/adc.c +++ b/bsp/mb9bf500r/adc.c @@ -7,7 +7,7 @@ * Date Author Notes * 2011-03-03 lgnq */ - + #include <rtthread.h> #include <rthw.h> #include "mb9bf506r.h" @@ -29,45 +29,45 @@ static rt_err_t rt_adc_init(rt_device_t dev) if(!(dev->flag & RT_DEVICE_FLAG_ACTIVATED)) { - /* I/O setting AN08 - P18 */ + /* I/O setting AN08 - P18 */ FM3_GPIO->ADE |= 0x100; - FM3_GPIO->PFR1 = 0x100; - - /* A/DC setting */ - FM3_ADC0->SCIS1 = 0x01; - FM3_ADC0->ADSS1 = 0x00; /* sampling timming ADST0 */ - FM3_ADC0->ADST1 = 0x43; - FM3_ADC0->ADCT = 0x02; - FM3_ADC0->SCCR = 0x10; /* FIFO clear,single mode */ - FM3_ADC0->CMPCR = 0x00; /* disable comparator */ - - /* starting A/DC */ - FM3_ADC0->SCCR |= 0x01; /* A/DC start */ - + FM3_GPIO->PFR1 = 0x100; + + /* A/DC setting */ + FM3_ADC0->SCIS1 = 0x01; + FM3_ADC0->ADSS1 = 0x00; /* sampling timming ADST0 */ + FM3_ADC0->ADST1 = 0x43; + FM3_ADC0->ADCT = 0x02; + FM3_ADC0->SCCR = 0x10; /* FIFO clear,single mode */ + FM3_ADC0->CMPCR = 0x00; /* disable comparator */ + + /* starting A/DC */ + FM3_ADC0->SCCR |= 0x01; /* A/DC start */ + dev->flag |= RT_DEVICE_FLAG_ACTIVATED; - } - return RT_EOK; + } + return RT_EOK; } static rt_err_t rt_adc_control(rt_device_t dev, int cmd, void *args) { - RT_ASSERT(dev != RT_NULL); + RT_ASSERT(dev != RT_NULL); - switch (cmd) - { - case RT_DEVICE_CTRL_ADC_START: + switch (cmd) + { + case RT_DEVICE_CTRL_ADC_START: FM3_ADC0->SCCR |= 0x1; - break; - - case RT_DEVICE_CTRL_ADC_RESULT: + break; + + case RT_DEVICE_CTRL_ADC_RESULT: while(FM3_ADC0->ADSR & 0x1) ; *((rt_uint16_t*)args) = FM3_ADC0->SCFD; *((rt_uint16_t*)args) = *((rt_uint16_t*)args) >> 6; *((rt_uint16_t*)args) = (*((rt_uint16_t*)args)*3300)/1024; - break; - } - return RT_EOK; + break; + } + return RT_EOK; } extern struct rt_messagequeue mq; @@ -76,29 +76,29 @@ rt_uint16_t adc_value; static void adc_thread_entry(void *parameter) { rt_device_t device; - + #ifdef RT_USING_RTGUI struct rtgui_event_command ecmd; - + RTGUI_EVENT_COMMAND_INIT(&ecmd); ecmd.type = RTGUI_CMD_USER_INT; ecmd.command_id = ADC_UPDATE; #else struct lcd_msg msg; -#endif +#endif device = rt_device_find("adc"); while(1) { - rt_device_control(device, RT_DEVICE_CTRL_ADC_START, RT_NULL); + rt_device_control(device, RT_DEVICE_CTRL_ADC_START, RT_NULL); rt_device_control(device, RT_DEVICE_CTRL_ADC_RESULT, &adc_value); pwm_update(adc_value/3); #ifdef RT_USING_RTGUI rtgui_thread_send(info_tid, &ecmd.parent, sizeof(ecmd)); #else msg.type = ADC_MSG; - msg.adc_value = adc_value; + msg.adc_value = adc_value; rt_mq_send(&mq, &msg, sizeof(msg)); #endif rt_thread_delay(20); @@ -108,22 +108,22 @@ static void adc_thread_entry(void *parameter) static rt_thread_t adc_thread; void rt_hw_adc_init(void) { - adc.type = RT_Device_Class_Char; - adc.rx_indicate = RT_NULL; - adc.tx_complete = RT_NULL; - adc.init = rt_adc_init; - adc.open = RT_NULL; - adc.close = RT_NULL; - adc.read = RT_NULL; - adc.write = RT_NULL; - adc.control = rt_adc_control; - adc.user_data = RT_NULL; + adc.type = RT_Device_Class_Char; + adc.rx_indicate = RT_NULL; + adc.tx_complete = RT_NULL; + adc.init = rt_adc_init; + adc.open = RT_NULL; + adc.close = RT_NULL; + adc.read = RT_NULL; + adc.write = RT_NULL; + adc.control = rt_adc_control; + adc.user_data = RT_NULL; adc_thread = rt_thread_create("adc", adc_thread_entry, RT_NULL, 384, 26, 5); - if(adc_thread != RT_NULL) + if(adc_thread != RT_NULL) rt_thread_startup(adc_thread); - - /* register a character device */ - rt_device_register(&adc, "adc", RT_DEVICE_FLAG_RDWR); + + /* register a character device */ + rt_device_register(&adc, "adc", RT_DEVICE_FLAG_RDWR); } |