Is there a step by step guide to blinking led with...
# clearf
Fabien Marteau
07/25/2024, 7:25 AMIs there a step by step guide to blinking led with clear eFPGA ? I'm little bit lost with the documentation.
m
mwilkinsonjr
07/27/2024, 3:55 AM@Fabien Marteau "blinky" is relatively easy in that you don't even need to program and interact with the eFPGA part of the chip to access the led attached to the gpio pin... it's exclusively mapped controlled by the vexriscv mcu "housekeeping" mcu... just piug in the board to a usb part, pip3 install pyftdi, cd into clear/firmware/blink and run "make flash". to rebuild the example you'll need to download or build a release of riscv-collab/riscv-gnu-toolchain and put it into your enivonrment PATH (or edit the Makefile to point it to directory the gcc binaries live)
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mwilkinsonjr
07/27/2024, 5:07 AMI'm struggling with successfully programming/using the eFPGA though.. even the example "and_gate" program refuses to reliably work for me at the moment.
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Fabien Marteau
09/14/2024, 8:14 PMHello, I'm trying to generate a bitstream for clear with OpenFPGA SOFA following these steps.
I don't understand why task.conf is configured for 45 nm fabric ? CLEAR is made with Sky130 in 130 nm no ?
in openfpga_flow/tasks/SOFA_tasks/config/task.conf I have :
power_tech_file = ${PATH:OPENFPGA_PATH}/openfpga_flow/tech/PTM_45nm/45nm.xml7 Views