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Altera_Forum
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11 years ago

Some of my PWM signals fed into CPLD chip are MISSING?

Hello, I connected my TI DSP TMS320LF2810's PWM signals output pins to the pins in Bank3 of my CPLD chip EPM1270F256. There are overall 6 PWM signals from DSP to CPLD chip. However, ther...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

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Hi Kaz,

Sorry, I don't quite get you. Do you mean that connect all 6 DSP PWM output pins to one known PWM output pin in the DSP?

I am very sure the code is fine since I tried it in another version of my board in which I used the same DSP chip but without CPLD chip. The 6 PWM outputs are active from the DSP.

Thanks!

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I suggested driving all 6 dsp output pins by one known pwm signal. But you seem to say that all 6 output pins are active without cpld so something went wrong with cpld connection. How do you observe the pins? could be they are accidentally connected to ground or Vcc