Buriedcode
Full Member level 6
Hi,
I've made a design involving nothing but lattice chips (Mach4A5-64/32), and I don't have a download cable, nor can I afford one.
I used these chips because they were the only ones avilable to me at the time and now I'm completely stuck.
I've downloaded the free software from lattice's website, including the 'download' software (ispVM). I really don't have time to change device to Xilinx or Altera, that would involve getting new software and buying new chips, a can't afford that either. If anyone has a schematic for a lattice compatible download cable, for Jtag, I would be greateful. I have built one, the schematic of which is from a website that no longer exists (lattice probably shut it down :x ) and it uses the standard buffer interface, 74HC244. Do you think it works? Not a chance, nothing :!: . the software refer's to it as a 'model 300' but constantly says the power is not on. I'm using a 5v regulator and a 9v battery to power the programmer (because I have a socket on the programmer board for the chip). If anyone can help, or at least tell me what Jtag programmers (Xilinx, Altera etc.) will work with the lattice software.
Regards, a man on the edge of dispair,
BuriedCode.
I've made a design involving nothing but lattice chips (Mach4A5-64/32), and I don't have a download cable, nor can I afford one.
I used these chips because they were the only ones avilable to me at the time and now I'm completely stuck.
I've downloaded the free software from lattice's website, including the 'download' software (ispVM). I really don't have time to change device to Xilinx or Altera, that would involve getting new software and buying new chips, a can't afford that either. If anyone has a schematic for a lattice compatible download cable, for Jtag, I would be greateful. I have built one, the schematic of which is from a website that no longer exists (lattice probably shut it down :x ) and it uses the standard buffer interface, 74HC244. Do you think it works? Not a chance, nothing :!: . the software refer's to it as a 'model 300' but constantly says the power is not on. I'm using a 5v regulator and a 9v battery to power the programmer (because I have a socket on the programmer board for the chip). If anyone can help, or at least tell me what Jtag programmers (Xilinx, Altera etc.) will work with the lattice software.
Regards, a man on the edge of dispair,
BuriedCode.