Difference between revisions of "MansOS API"
(→LEDs) |
|||
| (13 intermediate revisions by one other user not shown) | |||
| Line 1: | Line 1: | ||
{{TocRight}} |
|||
== LEDs == |
== LEDs == |
||
See [[MansOS LEDs | LED Reference]]. |
|||
mos/hil/leds.h |
|||
MansOS provides API for Light-Emitting Diode (LED) setting and status checking (whether a LED is ON or OFF). LEDs are connected directly to GPIO pins, and each platform must define pin numbers for available LEDs on the hardware platform. |
|||
LEDs can be addressed in two different forms: by color or by led number. LEDs are always accessible by number, starting from 0 up to <code>LED_COUNT - 1</code>, where <code>LED_COUNT</code> is a constant specifying LED count on the particular platform. LED addressing by color is optional, platform-dependent. On some platforms, such as TelosB, different colors are available, for example, red, green and blue LED. On some platforms all the LEDs can be of the same color. |
|||
Up to 8 LEDs are supported. |
|||
LED support is turned ON by default. It can be disabled by adding the following line to the application config file: |
|||
USE_LEDS = n |
|||
=== LED function reference === |
|||
// Toggle an LED, addressed by color |
|||
toggleRedLed() |
|||
toggleGreenLed() |
|||
toggleBlueLed() |
|||
// Toggle an LED, addressed by number |
|||
toggleLed(ledNr) |
|||
// Toggle platform's default LED |
|||
toggleLed() |
|||
// Turn ON an LED, addressed by color |
|||
redLedOn() |
|||
greenLedOn() |
|||
blueLedOn() |
|||
// Turn OFF an LED, addressed by color |
|||
redLedOff() |
|||
greenLedOff() |
|||
blueLedOff() |
|||
// Turn ON/OFF an LED, addressed by number |
|||
ledOn(uint8_t ledNr) |
|||
ledOff(uint8_t ledNr) |
|||
// Turn platform's default LED ON/OFF |
|||
ledOn(); |
|||
ledOff(); |
|||
// Return true, if an LED, addressed by number, is ON; false (zero) otherwise |
|||
bool ledIsOn(ledNr) |
|||
// Get and set all LEDs, addressed by a bitmask |
|||
// for example, if getLeds() returns 5, LEDs #0 and #2 are ON ((2 << 0) + (2 << 2) = 5) |
|||
uint8_t getLeds() |
|||
setLeds(bitmap) |
|||
=== LED usage examples === |
|||
==== Blink ==== |
|||
Blink the platform's default LED once every second. |
|||
// Example from apps/demo/Blink |
|||
while (1) { |
|||
// change red LED status |
|||
toggleLed(); |
|||
// wait for 1000 milliseconds |
|||
mdelay(1000); |
|||
} |
|||
==== Counter representation on LEDs ==== |
|||
Represent an incrementing counter on the LEDs. If less than 8 LEDs are supported by the platform, the youngest bits are shown. |
|||
// Example from apps/demo/CounterToLeds |
|||
uint8_t counter; |
|||
counter = 1; |
|||
while (1) { |
|||
setLeds(counter++); |
|||
msleep(1000); // sleep one second |
|||
} |
|||
== Humidity sensor == |
== Humidity sensor == |
||
See [[MansOS_Humidity | Humidity Reference |
See [[MansOS_Humidity | Humidity Reference]]. |
||
== Light sensor == |
== Light sensor == |
||
| Line 90: | Line 15: | ||
uint16_t readLight(); // read light value |
uint16_t readLight(); // read light value |
||
uint16_t |
uint16_t readTotalLight(); // read light |
||
uint16_t readPARLight(); // read photo-syntetically active radiation value |
uint16_t readPARLight(); // read photo-syntetically active radiation value |
||
| Line 106: | Line 31: | ||
uint8_t adcGetChannelCount() // returns ADC channel count provided by the platform |
uint8_t adcGetChannelCount() // returns ADC channel count provided by the platform |
||
== Radio == |
|||
See [[MansOS_Radio | Radio Reference]]. |
|||
== Sleep == |
== Sleep == |
||
| Line 111: | Line 40: | ||
mleep(miliseconds) |
mleep(miliseconds) |
||
== USART == |
== USART == |
||
Latest revision as of 15:37, 15 October 2014
LEDs
See LED Reference.
Humidity sensor
See Humidity Reference.
Light sensor
mos/hil/light.h
void lightInit(); // init light sensor, do not turn it on - called by kernel automatically, not needed in application void lightOn(); // turn on light sensor void lightOff(); // turn off light sensor uint16_t readLight(); // read light value
uint16_t readTotalLight(); // read light uint16_t readPARLight(); // read photo-syntetically active radiation value
ADC
mos/hil/adc.h
void adcOn(); void adcOff();
uint16_t adcRead(uint8_t channel); // sets channel, reads value
// alternative faster version: set channel once, read multiple times (usable, if the same channel read many times) void adcSetChannel(uint8_t ch); uint16_t adcReadFast();
uint8_t adcGetChannelCount() // returns ADC channel count provided by the platform
Radio
See Radio Reference.
Sleep
mos/hil/sleep.h
mleep(miliseconds)
USART
See mos/hil/usart.h for more details!
uint_t USARTInit(uint8_t id, uint32_t speed, uint8_t conf);
uint_t USARTSendByte(uint8_t id, uint8_t data); uint_t USARTSendString(uint8_t id, uint8_t *data); uint_t USARTSendStringLine(uint8_t id, uint8_t *data); void USARTSendData(uint8_t id, uint8_t *data, uint16_t len);
uint_t USARTEnableTX(uint8_t id); uint_t USARTDisableTX(uint8_t id); uint_t USARTEnableRX(uint8_t id); uint_t USARTDisableRX(uint8_t id);
/** * Set callback function for per-byte data receive. The callback is called * on every received packet * @param id - ID of the UART used (See MCU datasheet to get IDs) * @param cb - callback function: void myCallback(uint8_t byte) */ uint_t USARTSetReceiveHandle(uint8_t id, USARTCallback_t cb);
/**
* Set callback for per-packet data receive. Stores the received bytes in
* the buffer and the callback is called when either a newline is received
* ('\n', binary value 10) or at most len bytes are received. The newline is
* also stored in the buffer
* Also enables USART RX automatically.
* After the callback, buffer is reset and reception restarts.
* Warning: Can use only one USART at a time (single buffer, single handler)!
*
* @param id - ID of the UART used (See MCU datasheet to get IDs)
* @param cb - callback function: void myCallback(uint8_t bytes). Here the
* bytes parameter contains not the last byte received but
* total received byte count (i.e., bytes stored in the buffer)!
* @param len - size of the buffer in bytes. Callback is called when len
* bytes are received (or when '\n' is received).
* When len is zero, no packet size is checked, only on newline
* reception the callback is called.
*/
uint_t USARTSetPacketReceiveHandle(uint8_t id, USARTCallback_t cb, void *buffer,
uint16_t len);
