I have an old Radio Shack scanner which uses static RAM (15ns) for holding its frequencies in channels etc. I was thinking to tap into it and use a PIC16F887 and a 2-line 16-character LCD display or maybe an SPI/I2C display to tag some text to the channels. Currently, the scanner just stops on a frequency out of 1000 and you have to remember what that channel is.
I was thinking I could either just use the PIC to track the channels via A0-A10 and just store a text for the channels, simple-ish enough but I was also thinking is the PIC internal memory fast enough to replace the internal static RAM, which I doubt but looking through the datasheet I can't seem to find the memory read/write timing graphs.
Can anyone give me an idea of read/write on the PIC, I seem to remember its in mS, not nS.
I know you can buy new scanners that have memory tags and I have 2 of them but a man's got to do projects when a man's got to do a project for a bit of fun.
Thanks,
I was thinking I could either just use the PIC to track the channels via A0-A10 and just store a text for the channels, simple-ish enough but I was also thinking is the PIC internal memory fast enough to replace the internal static RAM, which I doubt but looking through the datasheet I can't seem to find the memory read/write timing graphs.
Can anyone give me an idea of read/write on the PIC, I seem to remember its in mS, not nS.
I know you can buy new scanners that have memory tags and I have 2 of them but a man's got to do projects when a man's got to do a project for a bit of fun.
Thanks,