Difference between revisions of "LB-68B50-01"
Jump to navigation
Jump to search
Blwikiadmin (talk | contribs) |
Blwikiadmin (talk | contribs) (→Design) |
||
| Line 35: | Line 35: | ||
* 3.3V levels | * 3.3V levels | ||
| + | |||
| + | === SD Card (Rev 2) === | ||
| + | |||
| + | [[file:LB-68B50-01_SD_CARDL.PNG]] | ||
=== SD Card (Rev1) === | === SD Card (Rev1) === | ||
| Line 42: | Line 46: | ||
* Need to not install level translators | * Need to not install level translators | ||
* Need to shot across the SD card lines | * Need to shot across the SD card lines | ||
| − | |||
| − | |||
| − | |||
| − | |||
=== Backplane === | === Backplane === | ||
Revision as of 16:02, 19 August 2024
.png)
Contents
Features
- Serial/Parallel I/O Card
- 68B50 UART
- 1.8432 MHz oscillator
- Baud Rate Clock (38.4k baud oscillator)
- XIAO RP2040 CPU
- USB/Serial
- 8-bit parallel port expander
- SD card
- 100x50mm card
Design
ACIA
- 68B50 UART
- Baud Rate Clock (38.4k baud oscillator)
XIAO RP2040 CPU
- USB/Serial
- Drive SPI I2C 8-bit parallel port expander
- SD card
Parallel I/O Port
- 3.3V levels
SD Card (Rev 2)
SD Card (Rev1)
- Need to not install level translators
- Need to shot across the SD card lines
Backplane
Mechanicals
Rev 2
Rev 1
Checkout
Rev 2
- Removed U2 voltage translator
Rev 1
.png)
- Do not install level translator U3
- Short across the SD card lines
- Jumper U2-13 to U2-2
- Jumper U2-12 to U2-3
- Jumper U2-11 to U2-4
- Jumper U2-10 to U2-5
