int main(void)
{
sysclk_init();
board_init();
configure_lcd();
configure_botao();
configure_adc();
configure_tc();
ili93xx_set_foreground_color(COLOR_BLACK);
ili93xx_draw_string(10, 20, (uint8_t *)"14 - ADC");
/** Draw text, image and basic shapes on the LCD */
//ili93xx_set_foreground_color(COLOR_BLACK);
//ili93xx_draw_string(10, 20, (uint8_t *)"14 - ADC");
while (1) {
if(adc_value_new == 1)
{
refresh_lcd(adc_value_old);
adc_value_new = 0;
}
}
}
int main(void)
{
system_init();
//! [setup_init]
configure_adc();
//! [setup_init]
//! [main]
//! [start_conv]
adc_start_conversion(&adc_instance);
//! [start_conv]
//! [get_res]
uint16_t result;
do {
/* Wait for conversion to be done and read out result */
} while (adc_read(&adc_instance, &result) == STATUS_BUSY);
//! [get_res]
//! [inf_loop]
while (1) {
/* Infinite loop */
}
//! [inf_loop]
//! [main]
}
/**
* set_up_therm_channel - enable thermal channel for conversion
* @base_addr: index of free msic ADC channel
*
* Enable all the three channels for conversion
*
* Can sleep
*/
static int set_up_therm_channel(u16 base_addr)
{
int ret;
/* Enable all the sensor channels */
ret = intel_msic_reg_write(base_addr, SKIN_SENSOR0_CODE);
if (ret)
return ret;
ret = intel_msic_reg_write(base_addr + 1, SKIN_SENSOR1_CODE);
if (ret)
return ret;
ret = intel_msic_reg_write(base_addr + 2, SYS_SENSOR_CODE);
if (ret)
return ret;
/* Since this is the last channel, set the stop bit
* to 1 by ORing the DIE_SENSOR_CODE with 0x10 */
ret = intel_msic_reg_write(base_addr + 3,
(MSIC_DIE_SENSOR_CODE | 0x10));
if (ret)
return ret;
/* Enable ADC and start it */
return configure_adc(1);
}
*/
int main(void)
{
sysclk_init();
board_init();
uint16_t i ;
configure_LCD();
configure_dac();
configure_tc(1000);
configure_adc();
resolucao = 100;
deltaTeta = 2.0*PI/((float)resolucao);
valorMedio = MAX_AMPLITUDE_ANAG/2.0;
ili93xx_draw_pixmap(0,
ILI93XX_LCD_HEIGHT-100-1,
240-1,
100-1,
&image_data_maua[0]);
while (1) {
}
static int set_up_therm_channel(u16 base_addr)
{
int ret;
ret = intel_msic_reg_write(base_addr, SKIN_SENSOR0_CODE);
if (ret)
return ret;
ret = intel_msic_reg_write(base_addr + 1, SKIN_SENSOR1_CODE);
if (ret)
return ret;
ret = intel_msic_reg_write(base_addr + 2, SYS_SENSOR_CODE);
if (ret)
return ret;
ret = intel_msic_reg_write(base_addr + 3,
(MSIC_DIE_SENSOR_CODE | 0x10));
if (ret)
return ret;
return configure_adc(1);
}
/* Initialize the ADC for reading micbias values. Can sleep. */
static int sn95031_initialize_adc(struct snd_soc_codec *sn95031_codec)
{
int base_addr, chnl_addr;
int value;
int channel_index;
/* Index of the first channel in which the stop bit is set */
channel_index = find_free_channel(sn95031_codec);
if (channel_index < 0) {
pr_err("No free ADC channels");
return channel_index;
}
base_addr = SN95031_ADC_CHNL_START_ADDR + channel_index;
if (!(channel_index == 0 || channel_index == SN95031_ADC_LOOP_MAX)) {
/* Reset stop bit for channels other than 0 and 12 */
value = snd_soc_read(sn95031_codec, base_addr);
/* Set the stop bit to zero */
snd_soc_write(sn95031_codec, base_addr, value & 0xEF);
/* Index of the first free channel */
base_addr++;
channel_index++;
}
/* Since this is the last channel, set the stop bit
to 1 by ORing the DIE_SENSOR_CODE with 0x10 */
snd_soc_write(sn95031_codec, base_addr,
SN95031_AUDIO_DETECT_CODE | 0x10);
chnl_addr = SN95031_ADC_DATA_START_ADDR + 2 * channel_index;
pr_debug("mid_initialize : %x", chnl_addr);
configure_adc(sn95031_codec, 1);
return chnl_addr;
}
int main(void)
{
system_init();
//! [setup_init]
configure_adc();
configure_adc_callbacks();
//! [setup_init]
//! [main]
//! [enable_global_interrupts]
system_interrupt_enable_global();
//! [enable_global_interrupts]
//! [start_adc_job]
adc_read_buffer_job(&adc_instance, adc_result_buffer, ADC_SAMPLES);
//! [start_adc_job]
//! [job_complete_poll]
while (adc_read_done == false) {
/* Wait for asynchronous ADC read to complete */
}
//! [job_complete_poll]
//! [inf_loop]
while (1) {
/* Infinite loop */
}
//! [inf_loop]
//! [main]
}
int main(void)
{
system_clock_config(CLOCK_RESOURCE_XO_26_MHZ, CLOCK_FREQ_26_MHZ);
//! [setup_init]
configure_adc();
//! [setup_init]
//! [main]
//! [get_res]
uint16_t result;
do {
/* Wait for conversion to be done and read out result */
} while (adc_read(CONF_ADC_INPUT_CH, &result) == STATUS_BUSY);
//! [get_res]
//! [inf_loop]
while (1) {
/* Infinite loop */
}
//! [inf_loop]
//! [main]
}
void main(void)
{
init_pins();
init_oscillator();
SPI1_Initialize();
float temp = 0;
// Set all pins RD1-7 to inputs, RD0 (MSB is set to output)
//TRISD = 0b11111110;
// RC2 is PWM pin
TRISCbits.RC2 = 0;
configure_adc();
configure_pwm();
int ticks = 0;
while (1)
{
MAX_7221_INIT();
temp = get_temperature(0);
set_fan_speed(temp);
if(ticks % 125 == 0) {
MAX_7221_WRITE_FLOAT(temp, 3);
ticks = 0;
}
ticks++;
}
}
/**
* mid_thermal_suspend - suspend routine
* @dev: device structure
*
* mid thermal suspend implements the suspend functionality
* by stopping the ADC. Can sleep.
*/
static int mid_thermal_suspend(struct device *dev)
{
/*
* This just stops the ADC and does not disable it.
* temporary workaround until we have a generic ADC driver.
* If 0 is passed, it disables the ADC.
*/
return configure_adc(0);
}
/**
* mid_thermal_probe - mfld thermal initialize
* @pdev: platform device structure
*
* mid thermal probe initializes the hardware and registers
* all the sensors with the generic thermal framework. Can sleep.
*/
static int mid_thermal_probe(struct platform_device *pdev)
{
static char *name[MSIC_THERMAL_SENSORS] = {
"skin0", "skin1", "sys", "msicdie"
};
int ret;
int i;
struct platform_info *pinfo;
pinfo = kzalloc(sizeof(struct platform_info), GFP_KERNEL);
if (!pinfo)
return -ENOMEM;
/* Initializing the hardware */
ret = mid_initialize_adc(&pdev->dev);
if (ret) {
dev_err(&pdev->dev, "ADC init failed");
kfree(pinfo);
return ret;
}
/* Register each sensor with the generic thermal framework*/
for (i = 0; i < MSIC_THERMAL_SENSORS; i++) {
struct thermal_device_info *td_info = initialize_sensor(i);
if (!td_info) {
ret = -ENOMEM;
goto err;
}
pinfo->tzd[i] = thermal_zone_device_register(name[i],
0, 0, td_info, &tzd_ops, NULL, 0, 0);
if (IS_ERR(pinfo->tzd[i])) {
kfree(td_info);
ret = PTR_ERR(pinfo->tzd[i]);
goto err;
}
}
pinfo->pdev = pdev;
platform_set_drvdata(pdev, pinfo);
return 0;
err:
while (--i >= 0) {
kfree(pinfo->tzd[i]->devdata);
thermal_zone_device_unregister(pinfo->tzd[i]);
}
configure_adc(0);
kfree(pinfo);
return ret;
}
/**
* mid_thermal_remove - mfld thermal finalize
* @dev: platform device structure
*
* MLFD thermal remove unregisters all the sensors from the generic
* thermal framework. Can sleep.
*/
static int mid_thermal_remove(struct platform_device *pdev)
{
int i;
struct platform_info *pinfo = platform_get_drvdata(pdev);
for (i = 0; i < MSIC_THERMAL_SENSORS; i++) {
kfree(pinfo->tzd[i]->devdata);
thermal_zone_device_unregister(pinfo->tzd[i]);
}
/* Stop the ADC */
return configure_adc(0);
}
int main(void)
{
sysclk_init();
board_init();
configure_lcd();
configure_botao();
configure_adc();
configure_tc();
/** Draw text, image and basic shapes on the LCD */
ili93xx_set_foreground_color(COLOR_BLACK);
ili93xx_draw_string(10, 20, (uint8_t *)"14 - ADC");
ili93xx_draw_filled_circle(120,160,60);
ili93xx_set_foreground_color(COLOR_WHITE);
ili93xx_draw_filled_circle(120,160,55);
while (1) {
}
/**
* \brief Function for calibration the DAC using the internal ADC
*
* This function will calibrate the DAC using the internal ADC, please be aware
* that signals will be outputted on the DAC pins.
*
* When calibrating always start with the offset then do gain calibration.
*
*/
static void dac_calibrate(void)
{
/* Configure the DAC output pins */
configure_pins();
/* Configure the DAC for this calibration sequence */
configure_dac();
/* Configure the ADC for this calibration sequence */
configure_adc();
/* Calibrate offset and gain for DAC CH0 */
dac_calibrate_offset(DAC_CH0);
dac_calibrate_gain(DAC_CH0);
/* Calibrate offset and gain for DAC CH1 */
dac_calibrate_offset(DAC_CH1);
dac_calibrate_gain(DAC_CH1);
adc_disable(&CALIBRATION_ADC);
}
void configure_adc_default(UINT8 ain){
configure_adc(
0x2, // Select a V_DD_AN/2 (1.65) reference
0x8, // Now collect 256 samples at a time.
// Theoretical result has 20-bit precision.
// ADC will automatically right shift
// 6 times, so result has 16-bit precision.
// Total sampling time length = (SAMPLEN+1)*(Clk_ADC/2)
0x1, // Set sampling time to 1 adc clock cycle?
0x2, // Relative to main clock, have adc clock
// run 8 times slower
0x1, // For averaging more than 2 samples,
// change RESSEL (0x1 for 16-bit)
0xF, // Since reference is 1/2,
// set gain to 1/2 to keep largest
// input voltage range (expected input
// will be 0 - 3.3V)
0x18, // Not using the negative for differential, so ground it.
ain // Map the adc to analog pin ain
);
}
int main(void)
{
system_init();
delay_init();
//! [setup_init]
configure_adc();
//! [setup_init]
//! [main]
//! [start_conv]
adc_start_conversion(&adc_instance);
//! [start_conv]
//! [get_res]
uint16_t result=0;
configure_console();
//! [get_res]
//! [inf_loop]
while (1) {
/* Infinite loop */
//adc_read(&adc_instance, &result);
do {
/* Wait for conversion to be done and read out result */
} while (adc_read(&adc_instance, &result) == STATUS_BUSY);
printf("The result is %d\n",result);
uint32_t far = 9.0/5.0*((float)result*.0002441406*6.0/.01)+32.0;
printf(" The temp is %d", far);
adc_clear_status(&adc_instance,adc_get_status(&adc_instance));
adc_start_conversion(&adc_instance);
delay_ms(500);
}
//! [inf_loop]
//! [main]
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(udp_client_process, ev, data)
{
static struct etimer periodic;
static struct ctimer backoff_timer;
#if WITH_COMPOWER
static int print = 0;
#endif
PROCESS_BEGIN();
PROCESS_PAUSE();
set_global_address();
PRINTF("UDP client process started\n");
print_local_addresses();
/* new connection with remote host */
client_conn = udp_new(NULL, UIP_HTONS(UDP_SERVER_PORT), NULL);
if(client_conn == NULL) {
PRINTF("No UDP connection available, exiting the process!\n");
PROCESS_EXIT();
}
udp_bind(client_conn, UIP_HTONS(UDP_CLIENT_PORT));
PRINTF("Created a connection with the server ");
PRINT6ADDR(&client_conn->ripaddr);
PRINTF(" local/remote port %u/%u\n",
UIP_HTONS(client_conn->lport), UIP_HTONS(client_conn->rport));
// printf("%d \n", CLOCK_SECOND);
#if WITH_COMPOWER
powertrace_sniff(POWERTRACE_ON);
#endif
configure_adc();
//etimer_set(&periodic, SEND_INTERVAL);
while(1) {
PROCESS_YIELD();
if(ev == tcpip_event) {
// tcpip_handler();
}
//if(etimer_expired(&periodic)) {
//PRINTF("Timer Expired ");
//etimer_reset(&periodic);
//}
if(ev==event_data_ready)
{
/*if(counter == 33)
{
memmove(buf+2, buffer, 66);
counter = 0;
ctimer_set(&backoff_timer, SEND_TIME, send_packet, NULL);
//printf("Counter %d \n",counter);
}*/
#if WITH_COMPOWER
if (print == 0) {
powertrace_print("#P");
}
if (++print == 3) {
print = 0;
}
#endif
}
}
PROCESS_END();
}
static int mid_thermal_suspend(struct platform_device *pdev, pm_message_t mesg)
{
return configure_adc(0);
}
/**
* \brief The main application.
*/
int main(void)
{
uint8_t i;
uint8_t temperature[BUFFER_SIZE];
uint8_t light[BUFFER_SIZE];
char value_disp[5];
uint32_t adc_value;
uint32_t light_value;
double temp;
/* Initialize clocks. */
sysclk_init();
/* Initialize GPIO states. */
board_init();
/* Configure ADC for light sensor. */
configure_adc();
/* Initialize at30tse. */
at30tse_init();
/* Configure IO1 buttons. */
configure_buttons();
/* Initialize SPI and SSD1306 controller. */
ssd1306_init();
ssd1306_clear();
/* Clear internal buffers. */
for (i = 0; i < BUFFER_SIZE; ++i) {
temperature[i] = 0;
light[i] = 0;
}
/* Show the start info. */
multi_language_show_start_info();
/* Wait 3 seconds to show the above message. */
delay_s(3);
/* Check for valid firmware in SD card. */
check_valid_firmware();
while (true) {
/* Set the trigger and jump to bootloader */
if (reset_flag) {
jump_to_bootloader();
}
/* Refresh page title only if necessary. */
if (app_mode_switch > 0) {
app_mode = (app_mode + 1) % 3;
/* Clear screen. */
ssd1306_clear();
ssd1306_set_page_address(0);
ssd1306_set_column_address(0);
if (app_mode == 0) {
/* Temperature mode. */
ioport_set_pin_level(OLED1_LED1_PIN, OLED1_LED1_ACTIVE);
ioport_set_pin_level(OLED1_LED2_PIN, !OLED1_LED2_ACTIVE);
ioport_set_pin_level(OLED1_LED3_PIN, !OLED1_LED3_ACTIVE);
multi_language_show_temperature_info();
} else if (app_mode == 1) {
/* Light mode. */
ioport_set_pin_level(OLED1_LED2_PIN, OLED1_LED2_ACTIVE);
ioport_set_pin_level(OLED1_LED1_PIN, !OLED1_LED1_ACTIVE);
ioport_set_pin_level(OLED1_LED3_PIN, !OLED1_LED3_ACTIVE);
multi_language_show_light_info();
} else {
/* SD mode. */
ioport_set_pin_level(OLED1_LED3_PIN, OLED1_LED3_ACTIVE);
ioport_set_pin_level(OLED1_LED1_PIN, !OLED1_LED1_ACTIVE);
ioport_set_pin_level(OLED1_LED2_PIN, !OLED1_LED2_ACTIVE);
sd_listing_pos = 0;
/* Show SD card info. */
display_sd_info();
}
app_mode_switch = 0;
}
/* Shift graph buffers. */
for (i = 0; i < (BUFFER_SIZE - 1); ++i) {
temperature[i] = temperature[i + 1];
light[i] = light[i + 1];
}
/* Get temperature. */
if (at30tse_read_temperature(&temp) == TWI_SUCCESS) {
/* Don't care about negative temperature. */
if (temp < 0) {
temp = 0;
}
/* Update temperature for display. */
/* Note: rescale to 0~24 for better rendering. */
if (temp > 40) {
temperature[BUFFER_SIZE - 1] = 24;
} else {
temperature[BUFFER_SIZE - 1] = (uint8_t)temp * 24 / 40;
}
} else {
/* Error print zero values. */
temperature[BUFFER_SIZE - 1] = 0;
}
/* Get light sensor information. */
/* Rescale to 0~24 for better rendering. */
adc_start_software_conversion(ADC);
adc_value = adc_channel_get_value(ADC, ADC_CHANNEL_0);
light[BUFFER_SIZE - 1] = 24 - adc_value * 24 / 1024;
if (app_mode == 0) {
/* Display temperature in text format. */
sprintf(value_disp, "%d", (uint8_t)temp);
ssd1306_set_column_address(98);
ssd1306_write_command(SSD1306_CMD_SET_PAGE_START_ADDRESS(0));
ssd1306_write_text(" ");
/* Avoid character overlapping. */
if (temp < 10) {
ssd1306_clear_char();
}
ssd1306_write_text(value_disp);
/* Display degree symbol. */
ssd1306_write_data(0x06);
ssd1306_write_data(0x06);
ssd1306_write_text("c");
/* Refresh graph. */
ssd1306_draw_graph(0, 2, BUFFER_SIZE, 2, temperature);
} else if (app_mode == 1) {
light_value = 100 - (adc_value * 100 / 1024);
sprintf(value_disp, "%lu", light_value);
ssd1306_set_column_address(98);
ssd1306_write_command(SSD1306_CMD_SET_PAGE_START_ADDRESS(0));
ssd1306_write_text(" ");
/* Avoid character overlapping. */
if (light_value < 10) {
ssd1306_clear_char();
}
ssd1306_write_text(value_disp);
ssd1306_write_text("%");
/* Avoid character overlapping. */
if (light_value < 100) {
ssd1306_clear_char();
}
/* Refresh graph. */
ssd1306_draw_graph(0, 2, BUFFER_SIZE, 2, light);
} else {
/**
* Refresh screen if card was inserted/removed or
* browsing content.
*/
if (sd_update == 1) {
/* Clear screen. */
ssd1306_clear();
ssd1306_set_page_address(0);
ssd1306_set_column_address(0);
if (sd_listing_pos == 0) {
/* Show SD card info. */
display_sd_info();
} else {
/* List SD card files. */
display_sd_files_unicode();
}
sd_update = 0;
}
}
/* Wait and stop screen flickers. */
delay_ms(150);
if (app_mode_switch == 0) {
pio_enable_interrupt(OLED1_PIN_PUSHBUTTON_1_PIO,
OLED1_PIN_PUSHBUTTON_1_MASK);
}
if (sd_update == 0) {
pio_enable_interrupt(OLED1_PIN_PUSHBUTTON_2_PIO,
OLED1_PIN_PUSHBUTTON_2_MASK);
pio_enable_interrupt(OLED1_PIN_PUSHBUTTON_3_PIO,
OLED1_PIN_PUSHBUTTON_3_MASK);
}
}
}
/**
* \brief Main Application Routine \n
* - Initialize the system clocks \n
* NOTE: The clock should be configured in conf_clock.h \n
* - Configure port pins (PA14 and PA16) are used here \n
* - Enable Global Interrupt \n
* - Configure and enable USART \n
* - Configure and enable ADC \n
* - Configure and enable DMAC and EVSYS if DMAC mode is chosen \n
* - Start first ADC conversion \n
* - Count idle loop count in forever loop \n
*/
int main(void)
{
/* Initialize system clocks */
system_init();
#if defined(ENABLE_PORT_TOGGLE)
/* Configure PORT pins PA14 and PA16 are configured here
* NOTE: Use oscilloscope to probe the pin.
*/
configure_port();
#endif
/* ENable Global interrupt */
system_interrupt_enable_global();
/* Start SysTick Timer */
systick_init();
/* Configure SERCOM - USART */
configure_usart();
/* Configure and enable ADC */
configure_adc();
/* Configure and enable EVSYS */
configure_event();
/* Configure and enable DMA channel and descriptor */
configure_dma();
/* Get the time stamp 1 before starting ADC transfer */
time_stamp1 = SysTick->VAL;
/*
* Trigger first ADC conversion through software.
* NOTE: In case of using DMA, further conversions are triggered through
* event generated when previous ADC result is transferred to destination
* (can be USART DATA register [or] RAM buffer).
* When DMA is not used, further conversions are triggered via software in
* ADC handler after each result ready.
*/
adc_start_conversion(&adc_instance);
while (1){
#if defined (ENABLE_PORT_TOGGLE)
/* Use oscilloscope to probe the pin. */
port_base->OUTTGL.reg = (1UL << PIN_PA16 % 32 );
#endif
/* Increment idle count whenever application reached while(1) loop */
idle_loop_count++;
/*
* Check if 1024 bytes transfer is done in either case (I.e. with or without
* using DMA.
* 'adc_conv_done' flag is set to true in the ADC handler once
* 'adc_sample_count' reaches BLOCK_COUNT.
* 'adc_dma_transfer_is_done' is set to true once DMA transfer is done
* in DMA call back for channel zero when 'ADC_DMAC_USART' is chosen.
* When choosing ADC_DMAC_MEM_MEM_USART mode, 'adc_dma_transfer_is_done'
* is set to true in DMA channel call back for channel 2.
* DMA channel is disabled once reaching BLOCK_COUNT (with DMA cases).
* ADC is disabled once reaching BLOBK_COUNT samples (without DMA cases).
*/
if (adc_dma_transfer_is_done == true){
/*
* Calculate number of cycles taken from the time stamp
* taken before start of the conversion and after 1024 transfer
* is completed.
* NOTE: This value in relation to the idle_loop_count is
* used in calculating CPU usage.
*/
cycles_taken = calculate_cycles_taken(time_stamp1,time_stamp2);
/* Write the CPU cycles taken on USART */
usart_write_buffer_wait(&usart_instance, (uint8_t *)&cycles_taken, sizeof(cycles_taken));
/* Print idle loop count on USART */
usart_write_buffer_wait(&usart_instance,(uint8_t *)&idle_loop_count, sizeof(idle_loop_count));
/*
* Enter into forever loop as all transfers are completed and
* DMAC/ADC is disabled
*/
while(1);
}
}
}//end of main
int main(void)
{
uint8_t i;
uint8_t temperature[BUFFER_SIZE];
uint8_t light[BUFFER_SIZE];
uint8_t value_disp[5];
uint32_t adc_value;
double temp;
// Initialize clocks.
sysclk_init();
// Initialize GPIO states.
board_init();
// Configure ADC for light sensor.
configure_adc();
// Initialize at30tse.
at30tse_init();
// Configure IO1 buttons.
configure_buttons();
// Initialize SPI and SSD1306 controller.
ssd1306_init();
ssd1306_clear();
// Clear internal buffers.
for (i = 0; i < BUFFER_SIZE; ++i)
{
temperature[i] = 0;
light[i] = 0;
}
while (true)
{
/* Refresh page title only if necessary. */
if (app_mode_switch > 0)
{
app_mode = app_mode_switch - 1;
// Clear screen.
ssd1306_clear();
ssd1306_set_page_address(0);
ssd1306_set_column_address(0);
/* Temperature mode. */
if (app_mode == 0)
{
ioport_set_pin_level(IO1_LED1_PIN, IO1_LED1_ACTIVE);
ioport_set_pin_level(IO1_LED2_PIN, !IO1_LED2_ACTIVE);
ioport_set_pin_level(IO1_LED3_PIN, !IO1_LED3_ACTIVE);
ssd1306_write_text("Temperature sensor:");
}
/* Light mode. */
else if (app_mode == 1)
{
ioport_set_pin_level(IO1_LED2_PIN, IO1_LED2_ACTIVE);
ioport_set_pin_level(IO1_LED1_PIN, !IO1_LED1_ACTIVE);
ioport_set_pin_level(IO1_LED3_PIN, !IO1_LED3_ACTIVE);
ssd1306_write_text("Light sensor:");
}
/* SD mode. */
else
{
ioport_set_pin_level(IO1_LED3_PIN, IO1_LED3_ACTIVE);
ioport_set_pin_level(IO1_LED1_PIN, !IO1_LED1_ACTIVE);
ioport_set_pin_level(IO1_LED2_PIN, !IO1_LED2_ACTIVE);
display_sd_info();
}
app_mode_switch = 0;
}
// Shift graph buffers.
for (i = 0; i < BUFFER_SIZE - 1; ++i)
{
temperature[i] = temperature[i + 1];
light[i] = light[i + 1];
}
// Get temperature in a range from 0 to 40 degrees.
if (at30tse_read_temperature(&temp) == TWI_SUCCESS)
{
// Don't care about negative temperature.
if (temp < 0)
temp = 0;
// Update temperature for display.
// Note: -12 in order to rescale for better rendering.
if (temp < 12)
temperature[BUFFER_SIZE - 1] = 0;
else
temperature[BUFFER_SIZE - 1] = temp - 12;
}
else
{
// Error print zero values.
temperature[BUFFER_SIZE - 1] = 0;
}
// Get light sensor information.
// Rescale for better rendering.
adc_start(ADC);
adc_value = adc_get_channel_value(ADC, ADC_CHANNEL_4);
light[BUFFER_SIZE - 1] = 24 - adc_value * 24 / 4096;
// Print temperature in text format.
if (app_mode == 0)
{
sprintf(value_disp, "%d", (uint8_t)temp);
ssd1306_set_column_address(95);
ssd1306_write_command(SSD1306_CMD_SET_PAGE_START_ADDRESS(0));
ssd1306_write_text(" ");
ssd1306_write_text(value_disp);
// Display degree symbol.
ssd1306_write_data(0x06);
ssd1306_write_data(0x06);
ssd1306_write_text("c");
// Refresh graph.
ssd1306_draw_graph(0, 1, BUFFER_SIZE, 3, temperature);
}
else if (app_mode == 1)
{
sprintf(value_disp, "%lu", 100 - (adc_value * 100 / 4096));
ssd1306_set_column_address(98);
ssd1306_write_command(SSD1306_CMD_SET_PAGE_START_ADDRESS(0));
ssd1306_write_text(" ");
ssd1306_write_text(value_disp);
ssd1306_write_text("%");
// Refresh graph.
ssd1306_draw_graph(0, 1, BUFFER_SIZE, 3, light);
}
else
{
// Is card has been inserted or removed?
if (sd_status_update == 1)
{
// Clear screen.
ssd1306_clear();
ssd1306_set_page_address(0);
ssd1306_set_column_address(0);
// Show SD card info.
display_sd_info();
sd_status_update = 0;
}
}
/* Wait and stop screen flickers. */
delay_ms(50);
}
}
