#Transistor game galaxy s6 edge case how to#
#Transistor game galaxy s6 edge case software#

I was considering using this mode in the current program but then decided to use another one. When CCP1Mx bits are 0b0010, the ECCP module automatically toggles the output pin CCP1 (RC5) when the Timer1 register matches the ECCP register. In Table 3 I highlighted the Compare modes in green. PWM mode: P1A, P1C active low P1B, P1D active high PWM mode: P1A, P1C active high P1B, P1D active low

PWM mode: P1A, P1C active high P1B, P1D active high

#Transistor game galaxy s6 edge case software#

Table 3 - ECCP Module Operation Modes Configuration CCP1M3Ĭompare mode, initialize CCP1 pin low, set output high on compare match (set CC1IPF bit)Ĭompare mode, initialize CCP1 pin high, set output low on compare match (set CC1IPF bit)Ĭompare mode, generate software interrupt only, CCP1 pin reverts the stateĬompare mode, trigger special event (ECCP resets Timer1 or Timer3, start A/D conversion, set CC1IPF bit) Note A at the fourth octave is 440 Hz, and note A one octave above is 880 Hz (Table 2). The frequency of the same notes in the neighboring octaves differs by double. And there can be several octaves on any musical instrument. If you’ve ever seen a piano you might notice that there are more keys on it than 12. Yeah, music and mathematics are interconnected very tightly. The frequencies of the neighboring notes can be calculated with the formula: As the foundation, we’ll use “A” of the 4’th octave and its frequency is 440 Hz. So with the sharps (or flats) there are 12 “notes”: C, C#, D, D#, E, F, F#, G, G#, A, A#, B (or H).Įach note has its own frequency. Also, there are some “half-notes” which are located between some of the basic notes, they are called sharps or flats. There are seven basic notes - C, D, E, F, G, A, B (or H). So I’ll just copy-paste this information here for your convenience.Īs you most likely know, music is made of notes.

#Transistor game galaxy s6 edge case how to#

We will return to this algorithm when we consider the program code - for now let’s recall the math of music.Īctually I have already described these calculations in the PIC10F200 series where I told how to play music using the PIC10F200 MCU. 4), we can find this out as we apply “0” to column C2 and read row R3. For example if we have pressed button S7 (fig. In this way, you can distinguish what button was pressed.

Set the next column low and repeat step 4 for it.

If any button is pressed, then the corresponding reading will be “0” because initially we set the column pin low. If no button in this row is pressed then all the readings will be “1” due to the pull-up resistors.

Configure all MCU pins to which rows are connected (R1 - R4) as inputs with the pull-up resistors.

Configure all MCU pins to which columns are connected (C1 - C4) as outputs, and set them all high.

This is similar to the dynamic indication when you use the LED indicators.īut how do we operate with the matrix keypad? The algorithm is quite simple in fact: As you can see, the matrix connection becomes much more beneficial with an increasing number of buttons.