CEC1x02 Development Board
User’s Guide
2018 Microchip Technology Inc.
DS50002727A-page 15
Chapter 6.
Initial Hardware Setup
The
CEC1x02 Development Board
should have all the required jumpers installed for
power up through the USB micro-B port (CN1). You can plug-in the USB micro-B Cable
from the PC to the board and +3.3V power LED (LD5) should be turned on.
eFuse Programming:
Please note that the CEC1702PIM is populated with the Bx "blank" version of device
which will stay in factory automatic test equipment (ATE) mode, which means the boot
ROM will not load any firmware from the external SPI flash device until eFuse program-
ming is completed. However, the JTAG port is enabled in this mode, so using the JTAG
debugger to download code into SRAM for execution will work fine.
Please refer to "CEC1702" Product Page for User's Guide & Utility.
Using JTAG for development:
Without performing the eFuse programming, the CEC1702 Bx "blank" device JTAG
port is enabled. You can connect the selected JTAG debugger to the JTAG header,
using the selected IDE development tools to select the CEC1702 device and configure
the debugger settings accordingly and then click on the 'debug' option to download the
compiled application firmware into the SRAM for execution.
For End-Product Evaluation - Building SPI Flash Image & Programming to exter-
nal SPI flash:
Please refer to the product page sample projects. Depending on which IDE you have
selected, building the SPI image by an external utility may be required. The details are
included in the corresponding sample projects. After building a correct 2 MB size SPI
image, you should use external SPI flash programmer to flash the image into the exter-
nal SPI flash on the CEC1702PIM. Finally, power cycle the board to see if the firmware
is being executed as expected.
Note:
Before performing eFuse programming on CEC1x02 development board,
you must jumper-wire J5 pin 3-4 to connect 1.59 V to the VREF_ADC pin.
