| ??? 02/20/10 01:21 Read: times |
#173323 - PWM Responding to: ???'s previous message |
Hello Hans.
I'm taking a look in your code, is very different code than what I have in mind. My actual code looks like:
DEC PWMPos
MOV A,PWMPos
CJNE A,RO,$+5
JMP $+4
MOV OUTR,C
CJNE A,GO,$+5
JMP $+4
MOV OUTG,C
CJNE A,BO,$+5
JMP $+4
MOV OUTB,C
I think it is not 100% right but works. PWMPos is the counter RO, GO and BO are the PWM values OUTR, OUTG and OUTB is the output pins (ie P2.7) The PWMs are for RGB LEDs, 3bit is too low. I'm using 24mhz crystal and also need to deal with DMX data receiving to drive the LEDs. I believe I will can drive one RGB LED with each 89S52 uC... very bad... Does exists a PWM IC? To drive the LED with it? |
| Topic | Author | Date |
| 89S52 and multiple PWM | 01/01/70 00:00 | |
| Speed | 01/01/70 00:00 | |
| is 2 times 5 less than 8? | 01/01/70 00:00 | |
| processor sugestion + PWM IC | 01/01/70 00:00 | |
| you need to describe EXACTLY | 01/01/70 00:00 | |
| what I want | 01/01/70 00:00 | |
| clarify? | 01/01/70 00:00 | |
| 1st DMX 2nd auto | 01/01/70 00:00 | |
| ??? | 01/01/70 00:00 | |
| Agreed | 01/01/70 00:00 | |
| RGB and PWM | 01/01/70 00:00 | |
| ??? | 01/01/70 00:00 | |
| GIVING UP! | 01/01/70 00:00 | |
| What is the point of it? | 01/01/70 00:00 | |
| misunderstood | 01/01/70 00:00 | |
| ideas and giving up | 01/01/70 00:00 | |
| look at some servo code (recently published on this forum) | 01/01/70 00:00 | |
| Faster PWM | 01/01/70 00:00 | |
| PWM | 01/01/70 00:00 | |
| check this | 01/01/70 00:00 | |
| randomly bumped on TM1803 | 01/01/70 00:00 | |
| PCA9685 | 01/01/70 00:00 | |
tlc5947 | 01/01/70 00:00 |