ldprog

Programming software for Lone Dynamics FPGA boards

Overview

ldprog can be used to program the configuration SRAM or flash on Lone Dynamics FPGA boards.

There are two ways to use ldprog:

• Run ldprog on a Raspberry Pi and directly connect the target device to the Raspberry Pi GPIO pins
• Run ldprog on a Linux computer and use a USB interface device (see supported devices below)

Installation for use with Müsli or Raspberry Pi Pico (Ubuntu)

apt-get install libusb-1.0-0-dev
make musli

Installation for use with Raspberry Pi GPIO (Raspbian)

apt-get install pigpio
make gpio

Usage

Display help:

./ldprog -h

Supported Target Devices

• Riegel Computer
• Eis Computer
• Bonbon Computer
• Keks Game Console
• Brot FPGA Board
• Kröte FPGA Board
• Winzig Logic Module
• Kolibri FPGA Dongle

Supported Interface Devices

• Raspberry Pi (GPIO)
• Raspberry Pi Pico (USB)
• Werkzeug (USB)
• Müsli (USB)

Note: Raspberry Pi Pico and Werkzeug must be loaded with the Müsli firmware. Keks, Eis, Bonbon and Kolibri provide a built-in interface device.

Raspberry Pi GPIO Default Wiring

Signal	GPIO#	Target Pin
CSPI_SS	25	1
CSPI_SCK	11	2
CSPI_SI	10	3
CSPI_SO	9	4
CRESET	23	5
CDONE	24	6

Raspbery Pi 40-pin Header Pinout

Müsli / Werkzeug / Raspberry Pi Pico Default Wiring

Signal	GPIO#	Müsli Pin	Werkzeug Pin	Pico Pin	Target Pin1
CSPI_SS	9	8	12	12	1
CSPI_SCK	10	9	13	14	2
CSPI_SI	11	10	14	15	3
CSPI_SO	8	7	11	11	4
CRESET	3	4	4	5	5
CDONE	2	3	3	4	6

Footnotes

1. For boards with a 6-pin ISP header. ↩