Mir
New Contributor
2 years agoAltera Cyclone IV and USB Blaster
I am making an external programmer for Altera Cyclone IV (exactly EP4CE6F17C8N / EP4CE6F17I8N). I have a usb blaster. What is the minimum signal connection (JTAG) to program the circuit? I have connected:
VCCINT to 1.2V,
VCCA1 to 2.5V,
VCCA2 to 2.5V
VCCD_PLL1 to 1.2V,
VCCD_PLL2 to 1.2V,
VCCIO1 to 3.3V
GND,
GNDA1
GNDA2,
nSTATUS up 10k to 3,3V,
nCONFIG up 10k to 3,3V,
nCE to GND
USB Blaster:
TDI up 10k to 3,3V,
TCK,
TMSup 10k to 3,3V,
TDO.
Are these connections sufficient? I connected VCCIO1 to 3.3V so that JTG would work on these pins, but Quartus does not detect Altera. Do I need to connect anything else to be able to detect and program the system?
Thanks.