Regarding FX2LP PC0 and PC1 signals for the Slave FIFO Interface

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aditya12
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5 replies posted 5 sign-ins First reply posted

Hello,

 

We have chosen FX2LP 56 pin package USB Controller and for the slave FIFO interface we have followed AN61345 design guide but in the design guide PC0 and PC1 signals are there but whichever package we have selected in that PC0 and PC1 signals are not there. So if we want to use PC0 and PC1 signals then how can we use?

 

Regards,

Aditya Upadhyay

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MallikaK_22
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50 likes received 750 replies posted 250 solutions authored

Hi Aditya,

In the example project, SYNC is connected to PC0 and DONE is connected to PC1. These signals are used to establish a proper synchronization between FX2LP and FPGA. You can use any other free gpios available in the 56 pin package and configure as done for the PC pins.

Regards,

Mallika

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MallikaK_22
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50 likes received 750 replies posted 250 solutions authored

Hi Aditya,

In the example project, SYNC is connected to PC0 and DONE is connected to PC1. These signals are used to establish a proper synchronization between FX2LP and FPGA. You can use any other free gpios available in the 56 pin package and configure as done for the PC pins.

Regards,

Mallika

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Hi,

Thanks for the reply, but if we want to use PC0(sync signal) then how can we use?.

Regards,

Aditya Upadhyay

 

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MallikaK_22
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50 likes received 750 replies posted 250 solutions authored

Hi Aditya,

PC0 is simply a Port C gpio in FX2LP. The code to configure PC0 and PC1 is present in the TD_Init(). Since the 56 pin package does not have this gpio, you can use any other free gpio and configure it in a similar way to implement as SYNC & DONE signals as done for PC0 pins.

Regards,

Mallika

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Okay thanks for the reply.

Regards,

Aditya Upadhyay

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