Monday, March 30, 2009
TI-99/8
Almost forgot to record that today was successful test of TI-99/8 with TITCP. Faster speed of this computer with 9995 able to download some things over internet with TI-FTP much smoother. Had to disable AMS memory, 99/8 locked up when enabling it.
Joysticks
Joystick problem fixed qnd added toggle for TI joysticks or regular, Ataristyle joysticks.
RAMdisk is back to working with modified Horizon ROS. Joystick fix must have fixed RAMdisk problem, cru related. Maybe program to dump RAMdisk to flash would be good idea to eliminate dependency on battery?
RAMdisk is back to working with modified Horizon ROS. Joystick fix must have fixed RAMdisk problem, cru related. Maybe program to dump RAMdisk to flash would be good idea to eliminate dependency on battery?
Saturday, March 28, 2009
Some hardware
Time for description of hardware
Device has been developing for a long time. I am using the TI-99/4A home computer. The device has three main capability:
1. 10/100 ethernet connection
2. AMS memory card emulation with 32K and super cart
3. disk and hard disk emulation with SD memory
Device is connected to cartridge port to allow cartridge dumping directly into the storage device. Also makes handy for editor assembler and extended basic cartridge or any cartridge emulation with selection.
The main device plug into the side expansion port. A speech synthesiser cannot be used because of limitations of my own knowledge. (Speech is a useless feature to me so not a worry). The joystick and cassette ports are used for extra CRU handling and data transfer. Serial connection available by coupling joystick and cassette also possible but a bit slower than regular RS232.
Ethernet lets me do FTP and file transfers quicker than RS232 so not a big concern.
I did not like swapping all of my diskette drives so added a hard drive emulation and disk emulation with SD flash. 4GB is ok to use but using the similar techniques of Myarc HFDC and using same limitations to be compatible. The DSR can select partitions for you to use with your programs.
AMS memory emulation is nice for building large programs that take advantage of the TI hardware. C compiler make it easy to port some software to TI.
Need to borrow camera to take some pictures of my hardware connections. Broke my camera with TI Peripheral box cover few month ago accidentally. Put cover corner down smashed lenz with heavy weight of cover. Poor camera rest in peace.
Nice having holiday time to try to document this work. Add bypass to joystick port still needed to play games. DSR bug really causing grief last month.
Device has been developing for a long time. I am using the TI-99/4A home computer. The device has three main capability:
1. 10/100 ethernet connection
2. AMS memory card emulation with 32K and super cart
3. disk and hard disk emulation with SD memory
Device is connected to cartridge port to allow cartridge dumping directly into the storage device. Also makes handy for editor assembler and extended basic cartridge or any cartridge emulation with selection.
The main device plug into the side expansion port. A speech synthesiser cannot be used because of limitations of my own knowledge. (Speech is a useless feature to me so not a worry). The joystick and cassette ports are used for extra CRU handling and data transfer. Serial connection available by coupling joystick and cassette also possible but a bit slower than regular RS232.
Ethernet lets me do FTP and file transfers quicker than RS232 so not a big concern.
I did not like swapping all of my diskette drives so added a hard drive emulation and disk emulation with SD flash. 4GB is ok to use but using the similar techniques of Myarc HFDC and using same limitations to be compatible. The DSR can select partitions for you to use with your programs.
AMS memory emulation is nice for building large programs that take advantage of the TI hardware. C compiler make it easy to port some software to TI.
Need to borrow camera to take some pictures of my hardware connections. Broke my camera with TI Peripheral box cover few month ago accidentally. Put cover corner down smashed lenz with heavy weight of cover. Poor camera rest in peace.
Nice having holiday time to try to document this work. Add bypass to joystick port still needed to play games. DSR bug really causing grief last month.
Screen shot
Screen of active DSR configuration of device project.
Easy to be configuring this device now. Load interrupt come in handy to interrupt the hardware and make changes on fly. Nice having all hardware together :)
First Post - finally
Finally to use blog is good idea. yay :)
Able to connect TI to video capture for some screen shots. Pictures not very clear with TI Monitor but look nice with directly connection.
Able to connect TI to video capture for some screen shots. Pictures not very clear with TI Monitor but look nice with directly connection.
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