iCE40 UltraPlus Mobile Development Platform
Evaluation Board User Guide
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FPGA-EB-02007-1.1
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7.2.
Programming the iCE40 Devices Configuration Memory (CRAM)
To program iCE40 UltraPlus devices’ CRAM in Diamond Programmer:
1.
Set board jumpers on J19 horizontally for CRAM programming.
2.
Remove board jumper J28: 1-2 for CRAM programming.
3.
Use Diamond Programmer 3.8 or later.
4.
Connect the iCE40 UltraPlus Mobile Development Platform board via the USB cable to a PC or MAC.
5.
Start Diamond Programmer.
6.
Set
Device Family
to iCE40 UltraPlus” and
Device
to “iCE40UP5K”. Refer
Figure 7.2
below.
7.
Be sure to perform the “Program, Verify” operation. If you select only the “Program” operation, you may get a false
positive that the device has programmed.
8.
Field
Programming Speed Settings
should be set to “Use customer Clock Divider” and appropriate value “5” should
be set in the text box below.
9.
Open the Device Properties dialog. Apply the settings highlighted.
10.
Access mode:
set to “CRAM programming” to allow directly programming iCE40 devices.
11.
Operation:
set to “Fast Program” mode.
12.
Programming File:
load bit stream file for demo
.
13.
Click
OK
to exit Device Properties dialog.
14.
Click the
Program
button in Diamond Programmer to download the bit stream file.
Figure 7.2. Programming iCE40 Devices on Board
