mirror of
https://github.com/Polprzewodnikowy/SummerCart64.git
synced 2024-11-28 08:24:14 +01:00
114 lines
5.0 KiB
Markdown
114 lines
5.0 KiB
Markdown
- [Step by step guide how to make SC64](#step-by-step-guide-how-to-make-sc64)
|
|
- [**PCB manufacturing data**](#pcb-manufacturing-data)
|
|
- [**PCB requirements**](#pcb-requirements)
|
|
- [**Components**](#components)
|
|
- [**Plastic shell**](#plastic-shell)
|
|
- [**Putting it together**](#putting-it-together)
|
|
- [**Initial programming**](#initial-programming)
|
|
- [**Troubleshooting**](#troubleshooting)
|
|
- [*`primer.py` threw error on `Bootloader -> SC64 FLASH` step*](#primerpy-threw-error-on-bootloader---sc64-flash-step)
|
|
|
|
---
|
|
|
|
## Step by step guide how to make SC64
|
|
|
|
All necessary manufacturing files are packaged in every `sc64-extra-{version}.zip` file in GitHub releases.
|
|
Please download latest release before proceeding with the instructions.
|
|
|
|
---
|
|
|
|
### **PCB manufacturing data**
|
|
|
|
1. Locate KiCad project inside `hw/pcb` folder
|
|
2. Export gerber/drill files
|
|
3. Export BOM spreadsheet
|
|
4. Export PnP placement files
|
|
5. Send appropriate files to the PCB manufacturer
|
|
|
|
---
|
|
|
|
### **PCB requirements**
|
|
|
|
***Before ordering PCBs make sure you select correct options listed below:***
|
|
|
|
- PCB thickness: 1.2 mm
|
|
- Surface finish (plating): ENIG (Hard gold for edge connector is recommended but it's very expensive)
|
|
- PCB contains edge connector: yes
|
|
- Beveled edge connector: yes, 45° (other angles also should work OK)
|
|
|
|
---
|
|
|
|
### **Components**
|
|
|
|
1. Locate interactive BOM file inside `hw/pcb` folder
|
|
2. Order all parts listed in the BOM file or use PCB assembly service together with your PCB order
|
|
|
|
---
|
|
|
|
### **Plastic shell**
|
|
|
|
1. Locate `.stl` files inside `hw/shell` folder
|
|
2. Use these files in the slicer and 3D printer of your choice or order ready made prints from 3D printing company
|
|
3. Find matching screws, go to discussions tab for community recommendations
|
|
|
|
---
|
|
|
|
### **Putting it together**
|
|
|
|
There are no special requirements for soldering components to board.
|
|
All chips and connectors can be soldered with standard manual soldering iron, although hot air station is recommended.
|
|
Interactive BOM has every component and its value highlighted on PCB drawings and it's strongly recommended to use during assembly process.
|
|
You can skip this step if PCB assembly service was used in previous steps.
|
|
|
|
---
|
|
|
|
### **Initial programming**
|
|
|
|
**Please read the following instructions carefully before proceeding with programming.**
|
|
|
|
For initial programming you are going to need a PC and a USB to UART (serial) adapter (3.3V signaling is required).
|
|
These steps assume you are using modern Windows OS (version 10 or higher).
|
|
|
|
As for software, here's list of required applications:
|
|
- [FT_PROG](https://ftdichip.com/utilities/#ft_prog) - FTDI FT232H EEPROM programming software
|
|
- [Python 3](https://www.python.org/downloads/) with `pip3` - necessary for initial programming script: `primer.py`
|
|
|
|
Programming must be done in specific order for `primer.py` script to work correctly.
|
|
|
|
First, program FT232H EEPROM:
|
|
1. Connect SC64 board to the PC with USB-C cable
|
|
2. Locate FT232H EEPROM template `ft232h_config.xml`
|
|
3. Launch `FT_PROG` software
|
|
4. Click on `Scan and parse` if no device has shown up
|
|
5. Right click on SC64 device and choose `Apply Template -> From File`
|
|
6. Select previously located `ft232h_config.xml`
|
|
7. Right click on SC64 device and choose `Program Device`
|
|
|
|
Your SC64 should be ready for next programming step.
|
|
|
|
Second, program FPGA, microcontroller and bootloader:
|
|
1. Disconnect SC64 board from power (unplug USB-C cable)
|
|
2. Connect serial adapter to `TX/RX/GND` pads marked on the PCB
|
|
3. Connect serial adapter to the PC
|
|
4. Check in device manager which port number `COMx` is assigned to serial adapter
|
|
5. Connect SC64 board to the PC with USB-C cable (***IMPORTANT:*** connect it to the same computer as serial adapter)
|
|
6. Locate `primer.py` script in root folder
|
|
7. Make sure these files are located in the same folder as `primer.py` script: `requirements.txt`, `sc64-firmware-{version}.bin`
|
|
8. Run `pip3 install -r requirements.txt` to install required python packages
|
|
9. Run `python3 primer.py COMx sc64-firmware-{version}.bin` (replace `COMx` with port located in step **4**)
|
|
10. Follow the instructions on the screen
|
|
11. Wait until programming process has finished (**DO NOT STOP PROGRAMMING PROCESS OR DISCONNECT SC64 BOARD FROM PC**, doing so might irrecoverably break programming through UART header and you would need to program FPGA and/or microcontroller with separate dedicated programming interfaces through *Tag-Connect* connector on the PCB)
|
|
|
|
Congratulations! Your SC64 flashcart should be ready for use!
|
|
|
|
---
|
|
|
|
### **Troubleshooting**
|
|
|
|
#### *`primer.py` threw error on `Bootloader -> SC64 FLASH` step*
|
|
|
|
This issue can be attributed to incorrectly programmed FT232H EEPROM in the first programming step.
|
|
Check again in `FT_PROG` application if device was configured properly.
|
|
Once FPGA and microcontroller has been programmed successfully `primer.py` script needs to be run in special mode.
|
|
Please use command `python3 primer.py COMx sc64-firmware-{version}.bin --bootloader-only` to try programming bootloader again.
|