Component: OscilloscopeM

This module implements the OscilloscopeM component, which periodically takes sensor readings and sends a group of readings over the UART. BUFFER_SIZE defines the number of readings sent in a single packet. The Yellow LED is toggled whenever a new packet is sent, and the red LED is turned on when the sensor reading is above some constant value.

Required Interfaces

• Timer
• Leds
• StdControl SensorControl
• ADC
• StdControl CommControl
• SendMsg DataMsg
• ReceiveMsg ResetCounterMsg

• StdControl

• uint8_t packetReadingNumber
• uint16_t readingNumber
• TOS_Msg msg[2]
• uint8_t currentMsg

• command result_t StdControl.init (void) Used to initialize this component.

• command result_t StdControl.start (void) Starts the SensorControl and CommControl components.

• command result_t StdControl.stop (void) Stops the SensorControl and CommControl components.

• task void dataTask(void)
• async event result_t ADC.dataReady (uint16_t data) Signalled when data is ready from the ADC.

• event result_t DataMsg.sendDone (TOS_MsgPtr sent, result_t success) Signalled when the previous packet has been sent.

• event result_t Timer.fired (void) Signalled when the clock ticks.

• event TOS_MsgPtr ResetCounterMsg.receive (TOS_MsgPtr m) Signalled when the reset message counter AM is received.

StdControl.start

StdControl.stop

ADC.dataReady

DataMsg.sendDone

Timer.fired

ResetCounterMsg.receive