Stuff don't work now. :/
Yesterday in the lab some great ideas came up.. A ordinary sid only writes in a couple of places in the 64k big memory. Why use the whole memory when only about 25 bytes in the memory is used? Therefore was 6502 emulator with dynamic memory created. Everything seemed so nice at a first glance but when trying to send files via UART it most likely recieved bad data. After some debugging things stopped working. Probably the program code was corrupted and made the program write in forbidden places on the microcontroller (if that is possible).
Why didn't it recive data correctly then? - It was because the UART wasn't properly configured in the microcontroller. The old version was also impossible to test, because the microcontroller didn't seem to work at all after a while.
The next thing to do is to read the datasheet properly about setting fuses correctly, and check if the microcontroller is completely broken or if it is possible to use it anyway. Another thing is to get crystal oscillators that are more compatible with UART, i.e easy to divide to a correct baud rate.
Sunday, 29 April 2007
Saturday, 28 April 2007
Photo and lagging recordings
The first version of the beauty. What is to be done now is to make things faster in order to play tunes more proper. A first sample of Rob Hubbard's International Karate.
First sound
Now I have initiaded this blog for the sidplayer-project. I really don't know what the final target with the project is. But one thing I know for sure is that it is a microcontroller and a 6581 SID chip involved.
My official lab partner for this project is Olov. Somewhat unofficial lab partner is hyarion, a.k.a Benjamin.
Tonight we got the first real sound out from the chip through UART via USB. It was more like a coincidence while connecting the player to the PC for recording the sound. It was lack of amplifier on the circut that didn't make sound. Why we should record the sound was to show it for kevtris, the creator of sidman and other sidplayers. Kevtris is very helpful and has lots of knowledge about this stuff.
My official lab partner for this project is Olov. Somewhat unofficial lab partner is hyarion, a.k.a Benjamin.
Tonight we got the first real sound out from the chip through UART via USB. It was more like a coincidence while connecting the player to the PC for recording the sound. It was lack of amplifier on the circut that didn't make sound. Why we should record the sound was to show it for kevtris, the creator of sidman and other sidplayers. Kevtris is very helpful and has lots of knowledge about this stuff.
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