Picadae hardware and control code
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Picadea control and monitor shell
Shell commands:
key |
Function |
Arguments |
Notes |
q |
quit |
|
|
? |
print usage |
|
|
w |
write |
(i2c_addr) (reg_addr) (data0) … (dataN) |
|
r |
read |
(i2c_addr) (src) (reg_addr) (byteN) |
See Memory Source Id Table. |
v |
note-on |
(pitch) (vel) |
|
u |
note-on |
(pitch) (usec) (div) |
See Pulse Timer Divisor Table. |
o |
note-off |
(pitch) |
|
T |
set table |
(pitch) (vel) (usec) |
|
t |
get table |
(pitch) (vel) |
|
D |
set duty |
(pitch) (percent) {(hz) {(div)}} |
|
d |
get duty |
(pitch) |
|
H |
set hold delay |
(pitch) (usec) |
|
h |
get hold delay |
(pitch) |
|
F |
set pwm freq |
(pitch) (hz) |
254=~123Hz |
f |
get pwm freq |
(pitch) |
|
I |
set pwm div |
(pitch) (div) |
See PWM Divisor Table. |
i |
get pwm div |
(pitch) |
|
A |
set flags |
(pitch) (flags) |
|
a |
get flags |
(pitch) |
|
W |
write table |
(pitch) |
|
N |
note w/ duration |
(pitch) (atkUs) (durMs) |
|
S |
seq |
(pitch) (atkUs) (durMs) (deltaUs) (noteN) |
|
L |
log |
(level) (0-1) |
|
PWM Divisor
Value |
Div |
Frequency |
Period |
1 |
1 |
16 M |
62.5 n |
2 |
2 |
8 M |
125 n |
3 |
4 |
4 M |
250 n |
4 |
8 |
2 M |
500 n |
5 |
16 |
1 M |
1 u |
6 |
32 |
500 K |
2 u |
7 |
64 |
250 K |
4 u |
8 |
128 |
125 K |
8 u |
9 |
256 |
62500 Hz |
16 u |
10 |
512 |
31250 Hz |
32 u |
11 |
1024 |
15625 Hz |
64 u |
12 |
2048 |
7812.5 Hz |
128 u |
13 |
4096 |
3906.25 Hz |
256 u |
14 |
8192 |
1953.125 Hz |
512 u |
15 |
16384 |
976.6625 Hz |
1024 u |
Pulse Timer Divisor
Value |
Divisor |
Frequency |
Period |
1 |
1 |
16000000 |
62.5n |
2 |
8 |
2000000 |
500.0n |
3 |
64 |
250000 |
4.0u |
4 |
256 |
62500 |
16.0u |
5 |
1024 |
15625 |
64.0u |
Memory Source Id Table
Id |
Memory |
Note |
0 |
Register file |
See register table file |
1 |
Velocity table |
MIDI velocity to pulse ticks lookup table |
2 |
EEPROM |
EEPROM data memory |
Memory Destination Id Table
Id |
Memory |
Note |
4 |
Register file |
See register table file |
5 |
Velocity table |
MIDI velocity to pulse ticks lookup table |
6 |
EEPROM |
EEPROM data memory |