matin-kh
Member level 3
Hi everyone
I have three question:
1- when I want to program the fpga(spartan 6) doesn't need to enter an external clock to fpga?I mean jtag will enter the clock to fpga and we don't have any external clock am I right? and does need to change the mode pins of FPGA to the slave mode?
2-if I want to use the fpga as a master and enter clock to other devices from fpga does it make any difference which pin is used as output?GCLK or IO pins? if it is make difference could you please tell me why?
3-I want to know more about the clock of fpga I read spartan 6 clock resources but it was a bit unclear for me I just want to know when I entered a clock to a gclk pin of fpga and then I want to have for example 10 different frequency of the mother clock what should I do?how can use the pll of the FPGA and how many clock can I have from that gclk pin, if you have some simple files please send me.
Regards
Matin
I have three question:
1- when I want to program the fpga(spartan 6) doesn't need to enter an external clock to fpga?I mean jtag will enter the clock to fpga and we don't have any external clock am I right? and does need to change the mode pins of FPGA to the slave mode?
2-if I want to use the fpga as a master and enter clock to other devices from fpga does it make any difference which pin is used as output?GCLK or IO pins? if it is make difference could you please tell me why?
3-I want to know more about the clock of fpga I read spartan 6 clock resources but it was a bit unclear for me I just want to know when I entered a clock to a gclk pin of fpga and then I want to have for example 10 different frequency of the mother clock what should I do?how can use the pll of the FPGA and how many clock can I have from that gclk pin, if you have some simple files please send me.
Regards
Matin