| grandezza
|
valore
|
unita'
|
| velocita del suono |
343 |
m/s
|
| lambda di 1khz |
343 |
mm
|
| lambda di un periodo a 24ksps |
14 |
mm
|
| 1 m/suono |
2.91 |
msec
|
| campioni per 1/msuono |
67 |
campioni
|
http://web.njit.edu/~gary/728/Lecture8.html
Mappa pin
| Pin
|
Funzione
|
Nome
|
porta sul uC
|
| 1 |
MCLR |
|
MCLR
|
| 2 |
CH0 |
|
AN0/VREF+/CN2/RA0
|
| 3 |
CH1 |
|
AN1/VREF-/CN3/RA1
|
| 4 |
Dati ICSP/CH2 |
|
PGED1/AN2/C2IN-/RP0(1)/CN4/RB0
|
| 5 |
Clock ICSP/CH3 |
|
PGEC1/ AN3/C2IN+/RP1(1)/CN5/RB1
|
| 6 |
CH4 |
|
AN4/C1IN-/RP2/CN6/RB2
|
| 7 |
CH5 |
|
AN5/C1IN+/RP3/CN7/RB3
|
| 8 |
V - |
|
VSS
|
| 9 |
|
|
OSC1/CLKI/CN30/RA2
|
| 10 |
|
|
OSC2/CLKO/CN29/PMA0/RA3
|
| 11 |
|
|
SOSCI/RP4(1)/CN1/PMBE/RB4
|
| 12 |
|
|
SOSCO/T1CK/CN0/PMA1/RA4
|
| 13 |
V + |
|
VDD
|
| 14 |
U1RX registro RPINR18 |
|
PGED3/ASDA1/RP5 /CN27/PMD7/RB5
|
| 15 |
U1TX RP 00011 |
|
PGEC3/ASCL1/RP6(1)/CN24/PMD6/RB6
|
| 16 |
|
|
INT0/RP7(1)/CN23/PMD5/RB7
|
| 17 |
|
|
TCK/SCL1/RP8(1)/CN22/PMD4/RB8
|
| 18 |
|
|
TDO/SDA1/RP9(1)/CN21/PMD3/RB9
|
| 19 |
V - |
|
VSS
|
| 20 |
10 uF tantalio verso VSS |
|
VCAP
|
| 21 |
|
|
PGED2/TDI/RP10(1)/CN16/PMD2/RB10
|
| 22 |
|
|
PGEC2/TMS/RP11(1)/CN15/PMD1/RB11
|
| 23 |
DAC left + |
|
AN12/DAC1RP/RP12(1)/CN14/PMD0/RB12
|
| 24 |
DAC left - |
|
AN11/DAC1RN/RP13(1)/CN13/PMRD/RB13
|
| 25 |
CH7 |
|
AN10/DAC1LP/RTCC/RP14(1)/CN12/PMWR/RB14
|
| 26 |
CH6 |
|
AN9/DAC1LN/RP15(1)/CN11/PMCS1/RB15
|
| 27 |
V - analogico |
|
AVSS
|
| 28 |
V + analogico |
|
AVDD
|