Difference between revisions of "RETRO-EP4CE15"

From Land Boards Wiki
Jump to navigation Jump to search
Line 102: Line 102:
 
* [http://land-boards.com/RETRO-EP4CE15/RETRO-EP4CE15_Rev1_Schematic.pdf RETRO-EP4CE15 Schematic]
 
* [http://land-boards.com/RETRO-EP4CE15/RETRO-EP4CE15_Rev1_Schematic.pdf RETRO-EP4CE15 Schematic]
  
== Pin List ==
 
 
<pre>
 
 
# Clock and reset
 
# Clock and reset
 
set_location_assignment PIN_T2 -to i_CLOCK_50
 
set_location_assignment PIN_T2 -to i_CLOCK_50
Line 115: Line 112:
 
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to ps2Data
 
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to ps2Data
 
# Serial
 
# Serial
set_location_assignment PIN_A10 -to ucts1
+
set_location_assignment PIN_B22 -to serSelect
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to ucts1
+
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to serSelect
set_location_assignment PIN_A13 -to urts1
+
set_location_assignment PIN_A13 -to cts1
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to urts1
+
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to cts1
set_location_assignment PIN_B10 -to urxd1
+
set_location_assignment PIN_A10 -to rts1
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to urxd1
+
set_location_assignment PIN_B13 -to rxd1
set_location_assignment PIN_B13 -to utxd1
+
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to rxd1
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to utxd1
+
set_location_assignment PIN_B10 -to txd1
 
# Video
 
# Video
 
set_location_assignment PIN_B15 -to videoR0
 
set_location_assignment PIN_B15 -to videoR0
Line 132: Line 129:
 
set_location_assignment PIN_B18 -to hSync
 
set_location_assignment PIN_B18 -to hSync
 
set_location_assignment PIN_A18 -to vSync
 
set_location_assignment PIN_A18 -to vSync
# SD Card
 
set_location_assignment PIN_B19 -to sdCS
 
set_location_assignment PIN_A20 -to sdMISO
 
set_location_assignment PIN_A19 -to sdMOSI
 
set_location_assignment PIN_B20 -to sdSCLK
 
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to sdMISO
 
 
# SRAM
 
# SRAM
 
set_location_assignment PIN_F1 -to n_sRamCS
 
set_location_assignment PIN_F1 -to n_sRamCS
 +
set_location_assignment PIN_B4 -to n_sRamWE
 
set_location_assignment PIN_J2 -to n_sRamOE
 
set_location_assignment PIN_J2 -to n_sRamOE
set_location_assignment PIN_B4 -to n_sRamWE
 
 
set_location_assignment PIN_E1 -to sramData[0]
 
set_location_assignment PIN_E1 -to sramData[0]
 
set_location_assignment PIN_C1 -to sramData[1]
 
set_location_assignment PIN_C1 -to sramData[1]
Line 154: Line 145:
 
set_location_assignment PIN_M1 -to sramAddress[2]
 
set_location_assignment PIN_M1 -to sramAddress[2]
 
set_location_assignment PIN_N1 -to sramAddress[3]
 
set_location_assignment PIN_N1 -to sramAddress[3]
 +
set_location_assignment PIN_A8 -to sramAddress[15]
 +
set_location_assignment PIN_A7 -to sramAddress[14]
 +
set_location_assignment PIN_A6 -to sramAddress[13]
 +
set_location_assignment PIN_A5 -to sramAddress[12]
 +
set_location_assignment PIN_C3 -to sramAddress[11]
 +
set_location_assignment PIN_A4 -to sramAddress[10]
 +
set_location_assignment PIN_A3 -to sramAddress[9]
 +
set_location_assignment PIN_H2 -to sramAddress[8]
 +
set_location_assignment PIN_M2 -to sramAddress[7]
 +
set_location_assignment PIN_N2 -to sramAddress[6]
 +
set_location_assignment PIN_P2 -to sramAddress[5]
 
set_location_assignment PIN_P1 -to sramAddress[4]
 
set_location_assignment PIN_P1 -to sramAddress[4]
set_location_assignment PIN_P2 -to sramAddress[5]
+
set_location_assignment PIN_B5 -to sramAddress[18]
set_location_assignment PIN_N2 -to sramAddress[6]
+
set_location_assignment PIN_B6 -to sramAddress[17]
set_location_assignment PIN_M2 -to sramAddress[7]
 
set_location_assignment PIN_H2 -to sramAddress[8]
 
set_location_assignment PIN_A3 -to sramAddress[9]
 
set_location_assignment PIN_A4 -to sramAddress[10]
 
set_location_assignment PIN_C3 -to sramAddress[11]
 
set_location_assignment PIN_A5 -to sramAddress[12]
 
set_location_assignment PIN_A6 -to sramAddress[13]
 
set_location_assignment PIN_A7 -to sramAddress[14]
 
set_location_assignment PIN_A8 -to sramAddress[15]
 
 
set_location_assignment PIN_B7 -to sramAddress[16]
 
set_location_assignment PIN_B7 -to sramAddress[16]
set_location_assignment PIN_B6 -to sramAddress[17]
 
set_location_assignment PIN_B5 -to sramAddress[18]
 
set_location_assignment PIN_C4 -to sramAddress[19]
 
 
# SDRAM
 
# SDRAM
 
set_location_assignment PIN_Y6 -to sdRamClk
 
set_location_assignment PIN_Y6 -to sdRamClk
Line 208: Line 198:
 
set_location_assignment PIN_W10 -to sdRamData[14]
 
set_location_assignment PIN_W10 -to sdRamData[14]
 
set_location_assignment PIN_V11 -to sdRamData[15]
 
set_location_assignment PIN_V11 -to sdRamData[15]
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to hSync
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to n_reset
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to ps2Clk
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to ps2Data
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to videoB0
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to videoB1
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to videoG0
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to videoG1
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to videoR0
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to videoR1
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to vSync
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to rts1
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to rxd1
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to txd1
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to n_sRamCS
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to n_sRamOE
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to n_sRamWE
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramData[0]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramData[1]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramData[2]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramData[3]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramData[4]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramData[5]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramData[6]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramData[7]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[0]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[1]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[2]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[3]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[4]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[5]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[6]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[7]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[8]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[15]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[14]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[13]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[10]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[9]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[11]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[12]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[16]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[17]
 
set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to sramAddress[18]
 
</pre>
 
  
 
== Programming the FPGA EEPROM ==
 
== Programming the FPGA EEPROM ==

Revision as of 17:01, 4 July 2020

P981-720px.jpg

Features

FPGA Resources

EP4CExx Resources.PNG

Connectors

J1 - I/O Connector

RETROEP4CE15-J1.PNG

U7 - FPGA to RETRO-EP4CE15 card

U7 io CONN.PNG

U8 - FPGA to RETRO-EP4CE15 card

U8 io CONN.PNG

Headers/Jumpers

H1 - Power

  • Power from USB 5V
  • Do not power from FPGA when this jumper is installed

H2 - I/O Power Source

  • 1-2 = FPGA Power
  • 2-3 = On-board Regulator

J2 - PS/2 Keyboard

Retroep4ce15-J2.PNG

J3 - Header

  • J8P55 = IO_B22
  • J8P56 = IO_B21
  • J8B57 = IO_N20
  • J8P58 = IO_N19
  • J8P59 = IO_M20
  • J8P60 = IO_M19

RETROEP4CE15-J3.PNG

J3-footprint.PNG

P2 - PS/2 Keyboard

P3 - USB-C

P4 - SD Card

RETROEP4CE15-P4 SD Card.PNG

VGA - Ideal Drive 2:2:2 Case

  • FPGA has a 3.3V driver which can drive 8 mA
  • Ideal case drive current
    • 0.7V into 75 Ohms = 9.33 mA
  • R-2R values
  • Voltage steps are:

VGA Sim 2R Voltage.PNG

  • Current steps are:

VGA Sim 2R Current.PNG

Schematic

  1. Clock and reset

set_location_assignment PIN_T2 -to i_CLOCK_50 set_location_assignment PIN_W13 -to n_reset set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to n_reset

  1. PS/2

set_location_assignment PIN_R1 -to ps2Clk set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to ps2Clk set_location_assignment PIN_R2 -to ps2Data set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to ps2Data

  1. Serial

set_location_assignment PIN_B22 -to serSelect set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to serSelect set_location_assignment PIN_A13 -to cts1 set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to cts1 set_location_assignment PIN_A10 -to rts1 set_location_assignment PIN_B13 -to rxd1 set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to rxd1 set_location_assignment PIN_B10 -to txd1

  1. Video

set_location_assignment PIN_B15 -to videoR0 set_location_assignment PIN_A15 -to videoR1 set_location_assignment PIN_B16 -to videoG0 set_location_assignment PIN_A16 -to videoG1 set_location_assignment PIN_B17 -to videoB0 set_location_assignment PIN_A17 -to videoB1 set_location_assignment PIN_B18 -to hSync set_location_assignment PIN_A18 -to vSync

  1. SRAM

set_location_assignment PIN_F1 -to n_sRamCS set_location_assignment PIN_B4 -to n_sRamWE set_location_assignment PIN_J2 -to n_sRamOE set_location_assignment PIN_E1 -to sramData[0] set_location_assignment PIN_C1 -to sramData[1] set_location_assignment PIN_B1 -to sramData[2] set_location_assignment PIN_B3 -to sramData[3] set_location_assignment PIN_B2 -to sramData[4] set_location_assignment PIN_C2 -to sramData[5] set_location_assignment PIN_D2 -to sramData[6] set_location_assignment PIN_F2 -to sramData[7] set_location_assignment PIN_H1 -to sramAddress[0] set_location_assignment PIN_J1 -to sramAddress[1] set_location_assignment PIN_M1 -to sramAddress[2] set_location_assignment PIN_N1 -to sramAddress[3] set_location_assignment PIN_A8 -to sramAddress[15] set_location_assignment PIN_A7 -to sramAddress[14] set_location_assignment PIN_A6 -to sramAddress[13] set_location_assignment PIN_A5 -to sramAddress[12] set_location_assignment PIN_C3 -to sramAddress[11] set_location_assignment PIN_A4 -to sramAddress[10] set_location_assignment PIN_A3 -to sramAddress[9] set_location_assignment PIN_H2 -to sramAddress[8] set_location_assignment PIN_M2 -to sramAddress[7] set_location_assignment PIN_N2 -to sramAddress[6] set_location_assignment PIN_P2 -to sramAddress[5] set_location_assignment PIN_P1 -to sramAddress[4] set_location_assignment PIN_B5 -to sramAddress[18] set_location_assignment PIN_B6 -to sramAddress[17] set_location_assignment PIN_B7 -to sramAddress[16]

  1. SDRAM

set_location_assignment PIN_Y6 -to sdRamClk set_location_assignment PIN_W6 -to sdRamClkEn set_location_assignment PIN_AA4 -to n_sdRamCas set_location_assignment PIN_AA3 -to n_sdRamCe set_location_assignment PIN_AB3 -to n_sdRamRas set_location_assignment PIN_AB4 -to n_sdRamWe set_location_assignment PIN_V2 -to sdRamAddr[0] set_location_assignment PIN_V1 -to sdRamAddr[1] set_location_assignment PIN_U2 -to sdRamAddr[2] set_location_assignment PIN_U1 -to sdRamAddr[3] set_location_assignment PIN_V3 -to sdRamAddr[4] set_location_assignment PIN_V4 -to sdRamAddr[5] set_location_assignment PIN_Y2 -to sdRamAddr[6] set_location_assignment PIN_AA1 -to sdRamAddr[7] set_location_assignment PIN_Y3 -to sdRamAddr[8] set_location_assignment PIN_V5 -to sdRamAddr[9] set_location_assignment PIN_W1 -to sdRamAddr[10] set_location_assignment PIN_Y4 -to sdRamAddr[11] set_location_assignment PIN_V6 -to sdRamAddr[12] set_location_assignment PIN_Y1 -to sdRamAddr[13] set_location_assignment PIN_W2 -to sdRamAddr[14] set_location_assignment PIN_AA10 -to sdRamData[0] set_location_assignment PIN_AB9 -to sdRamData[1] set_location_assignment PIN_AA9 -to sdRamData[2] set_location_assignment PIN_AB8 -to sdRamData[3] set_location_assignment PIN_AA8 -to sdRamData[4] set_location_assignment PIN_AB7 -to sdRamData[5] set_location_assignment PIN_AA7 -to sdRamData[6] set_location_assignment PIN_AB5 -to sdRamData[7] set_location_assignment PIN_Y7 -to sdRamData[8] set_location_assignment PIN_W8 -to sdRamData[9] set_location_assignment PIN_Y8 -to sdRamData[10] set_location_assignment PIN_V9 -to sdRamData[11] set_location_assignment PIN_V10 -to sdRamData[12] set_location_assignment PIN_Y10 -to sdRamData[13] set_location_assignment PIN_W10 -to sdRamData[14] set_location_assignment PIN_V11 -to sdRamData[15]

Programming the FPGA EEPROM

  • File
  • Convert Programming File
  • Configuration Device = EPCQ64
  • Mode = Active Serial
  • Programming File Type: *.jic
  • Advanced = Check both Disables...
  • Select Flash Loader
  • Add Device = Cyclone IV and EP4CE15
  • Select SOF Data
  • Select Add File and select the .sof file
  • Generate
  • In Tools, Programmer
  • Add file and select the .jic file
  • Select Program/Configure
  • Takes a while to program
  • Press button near VGA

Multicomp Builds

Checkout

Rev 2 Issues

  • GND on wrong USB pin
    • Was pin 4, s/b pin 5
    • Cut etch J4-4 to via
    • Add wire J4-5 to via
  • FT230XS +3.3V out needs 10 uF cap (min)
    • Added 47uF electrolytic cap between via GND and vusb (3.3V) on rear of board

RETRO-EP4CE15-CAP-REWORK-P966-445PX.jpg

Rev 1 Issues

  • Wrong DB15HD footprint
    • Change to right footprint in Rev 2
  • USB-C too hard to hand solder
    • Changing to USB-B Micro in Rev 2
  • Add 5V header in Rev 2

Rev 1 Prototype

  • VGA connector footprint problem
  • Using the J1 connector to VGAX49 card
Signal VGAX49 Pin RETRO Pin FPGA Pin
GND J1-19 J1-49 N/A
R4 J1-1 J1-47 C21
R3 J1-2 J1-48 C22
G5 J1-6 J1-45 D21
G4 J1-7 J1-46 D22
B4 J1-12 J1-43 E21
B3 J1-13 J1-44 E22
HS J1-17 J1-41 F21
VS J1-18 J1-42 F22
  • Serial
Signal RETRO Pin FPGA Pin
GND J1-50 N/A
SerTx J1-39 H21
SerRx J1-40 H22
SerCts J1-37 J21
SerRts J1-38 J22

Testing with R32V2020 and Multicomp

P1060926-cropped-512pxV.jpg

# Video
set_location_assignment PIN_C22 -to videoR0
set_location_assignment PIN_C21 -to videoR1
set_location_assignment PIN_D22 -to videoG0
set_location_assignment PIN_D21 -to videoG1
set_location_assignment PIN_E22 -to videoB0
set_location_assignment PIN_E21 -to videoB1
set_location_assignment PIN_F21 -to hSync
set_location_assignment PIN_F22 -to vSync
# Serial
set_location_assignment PIN_H22 -to o_SerTxd
set_location_assignment PIN_H21 -to i_SerRxd
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to i_SerRxd
# PS/2
set_location_assignment PIN_R1 -to ps2Clk
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to ps2Clk
set_location_assignment PIN_R2 -to ps2Data
set_instance_assignment -name WEAK_PULL_UP_RESISTOR ON -to ps2Data

Assembly Sheet