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boards:ecb:propio:start [2017/08/25 20:35]
wwarthen
boards:ecb:propio:start [2017/08/25 20:44] (current)
wwarthen
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 ====== ECB PropIO V2 ====== ====== ECB PropIO V2 ======
  
-[[http://​www.retrobrewcomputers.org/​lib/​exe/​fetch.php?​media=boards:​ecb:​propio:​photos:​propio_v2_board_v2.00.jpg|{{  :​boards:​ecb:​propio:​photos:​propio_v2_board_v2.00.jpg?​direct&400x300}}]]A Propeller-based peripheral support board for the RetroBrew Computers ECB processors.+{{:​boards:​ecb:​propio:​photos:​propio_v2_board_v2.00.jpg?​nolink&400}} 
 + 
 +A Propeller-based peripheral support board for the RetroBrew Computers ECB processors.
  
 The PropIO is a peripheral support board for the RetroBrew Computers projects based on the [[https://​en.wikipedia.org/​wiki/​Parallax_Propeller|Parallax Propeller P8X32A MCU]] as an intelligent I/O controller. The Propeller MCU is ideally suited to this role as it allows for simple connection of multiple peripheral devices and utilizes a custom EEPROM based firmware that can be enhanced over time. The PropIO is a peripheral support board for the RetroBrew Computers projects based on the [[https://​en.wikipedia.org/​wiki/​Parallax_Propeller|Parallax Propeller P8X32A MCU]] as an intelligent I/O controller. The Propeller MCU is ideally suited to this role as it allows for simple connection of multiple peripheral devices and utilizes a custom EEPROM based firmware that can be enhanced over time.
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   - **PS/2 Keyboard: **  A standard PC compatible PS/2 keyboard connector is provided and supports buffered keyboard input.   - **PS/2 Keyboard: **  A standard PC compatible PS/2 keyboard connector is provided and supports buffered keyboard input.
   - **SD Card: **  A Mini-SD Card connector is provided which allows block I/O with any standard SD, SDHC, or SDXC memory card. A host would typically utilize the SD Card to provide a solid-state disk drive.   - **SD Card: **  A Mini-SD Card connector is provided which allows block I/O with any standard SD, SDHC, or SDXC memory card. A host would typically utilize the SD Card to provide a solid-state disk drive.
-  - **RS-232 Serial Interface: **  A 10 pin header is provided to support standard RS-232 serial connections. The header requires a pigtail to convert to a standard RS-232 connector. The serial port is a simple 3-wire interface (send, receive, ground). No flow control is supported, however the Propeller firmware does implement a small buffer. In the present firmware, the serial port is not addressable by the host controller, but can be used for in-situ programming of the Propeller EEPROM firmware ​as described below. A future firmware upgrade will allow the host processor/​controller to utilize this serial port.+  - **RS-232 Serial Interface: **  A 10 pin header is provided to support standard RS-232 serial connections. The header requires a pigtail to convert to a standard RS-232 connector. The serial port is a simple 3-wire interface (send, receive, ground). No flow control is supported, however the Propeller firmware does implement a small buffer. In the present firmware, the serial port is not addressable by the host controller, but can be used for in-situ programming of the Propeller EEPROM firmware. A future firmware upgrade will allow the host processor/​controller to utilize this serial port.
   - **Speaker: **  A small, low fidelity speaker is provided to allow generation of simple sounds. This is mostly intended to allow for various “beep” codes as desired. The current firmware does not allow the host processor/​controller to directly control the speaker, but this should be possible with a simple upgrade to the onboard EEPROM firmware   - **Speaker: **  A small, low fidelity speaker is provided to allow generation of simple sounds. This is mostly intended to allow for various “beep” codes as desired. The current firmware does not allow the host processor/​controller to directly control the speaker, but this should be possible with a simple upgrade to the onboard EEPROM firmware
 Version V2 of the PropIO is a significant redesign of the original version and combines features of the original V1 with the ParPortProp. The following architecture changes were made in V2: Version V2 of the PropIO is a significant redesign of the original version and combines features of the original V1 with the ParPortProp. The following architecture changes were made in V2:
boards/ecb/propio/start.1503707727.txt.gz · Last modified: 2017/08/25 20:35 by wwarthen
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