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http://gitlab.keith-koep.com/tr8firmware/tr8_fpga
The Trizeps VIII can be equipped with a Lattice MachXO3 FPGA with either 640, 1300, 2100 or 4300LUT.
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The following describes the current default-firmware, which is designed to offer best compatibility to previous Trizeps modules functionality and Seco baseboards.
I2C-Address: 0x41 (7bit) |
|---|
Reg. | Name | Access | Description | Default-Value |
|---|
0x00 | I2C_REG_ID | read | Return ID-value | 0x61 |
0x10 | I2C_REG_DISPLAY | write | | Code Block |
|---|
Display-Control-Register for
MIPI-DSI to parallel RGB converter
0x8. Invert Pixel-Clock polarity
0x4. Invert HSync polarity
0x2. Invert VSync polarity
0x1. Invert DE polarity
0x.C Use RGB24, LCD_D[23..0]
0x.8 Use RGB18, LCD_D[17..0]
0x.4 Use RGB16, LCD_D[15..0]
0x.1 Enable converter |
| 0x00 |
0x20 | I2C_REG_PINMUX | write | | Code Block |
|---|
Pin-Mux-Control-Register
0x.0 UART4/SPI2 not routed.
0x.1 UART4 routed to on-board
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Bluetooth BT-module.
0x.2 SPI2 routed to SODIMM
(Pins: 86 SS,88 CLK,90 MISO,92 MOSI)
0x.3 SPI2 routed to SODIMM
(Pins: 170 MOSI,172 CLK,178 SS,180 MISO)
0x.4 SPI2 routed to SODIMM
(Pins: 170 MISO,172 SS,178 CLK,180 MOSI) |
| 0x00 |
0xF0 | I2C_REG_VERSION | read | | Code Block |
|---|
Read Version of FPGA-Code |
| xx |
Read Version
The currently programmed version can be read in bootloader through:
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Versions prior to version 1 return „read failure“ on attempt to read register 0xF0.
Download
Date | Version | Description | Download |
|---|
11.03.2021 | 1 | | Code Block |
|---|
+ Added I2C_REG_VERSION
+ Added option 4 & fixed option 3 of I2C_REG_PINMUX
+ Add extra display-reset condition. |
| tr8_fpga_v1_20210311.zip |
27.11.2019 | none | | Code Block |
|---|
+ Fix routing of SPI/BTUART pins. |
| tr8_fpga_20191127.zip |
14.08.2019 | none | | Code Block |
|---|
+ Disable clamping of pins on VDD_FPGA_MIPI power-domain. |
| tr8_fpga_20190814.zip |
17.07.2019 | none | | Code Block |
|---|
+ Changed I2C_SCL and I2C_SDA to OpenDrain. |
| tr8_fpga_20190717.zip |
03.07.2019 | none | | Code Block |
|---|
Firmware for LCMXO3LF-2100E-6MG121C
+ Added supervisor to check wether valid display-data is received
and if not reset receive-part. |
| tr8_fpga_20190703.zip |
26.04.2019 | none | Firmware for LCMXO3LF-2100E-6MG121C | tr8_fpga_20190426.zip |
