Scampy
- 4th June 2015, 17:54
Guys,
If you have been following my recent posts you'll see that I've been playing with an i2c adapter that allows a 128 x 64 GLCD to be driven by sending instructions via the i2c bus. Lets just say things haven't gone well, and it appears that I've given up with that board and may of damaged the glcd as well.
Anyway I'm looking at alternatives for this project. I can get a 128 x 64 GLCD for my easypic5 board (direct lug in) for around £14. However these are not supported by the i2c adapter board due to using a different chipset, so I would have to use the traditional parallel method of connection, which causes me a problem because this requires additional pins compared to the 20 x 4 LCD I'm using and I'm short on spare pins.
So, moving on, I've seen a 2.8" TFT which is not much more expensive than the stock 128 x 64 mono GLCD and touchsceen for the easypic5. Whilst it's pin for pin compatible with the parallel header on the EasyPic5 board, I can't use that due to the issue mentioned above. But it also has an SPI interface, which would make life simpler on the pin count. But then I need a PIC that has 2 MSSP's so I can use the i2c bus for other items such as the DS1307 RTC chip.
Anyone know of an 18F device in a 40 pin package that has two MSSP's that can be configured independently for the two protocols.
If you have been following my recent posts you'll see that I've been playing with an i2c adapter that allows a 128 x 64 GLCD to be driven by sending instructions via the i2c bus. Lets just say things haven't gone well, and it appears that I've given up with that board and may of damaged the glcd as well.
Anyway I'm looking at alternatives for this project. I can get a 128 x 64 GLCD for my easypic5 board (direct lug in) for around £14. However these are not supported by the i2c adapter board due to using a different chipset, so I would have to use the traditional parallel method of connection, which causes me a problem because this requires additional pins compared to the 20 x 4 LCD I'm using and I'm short on spare pins.
So, moving on, I've seen a 2.8" TFT which is not much more expensive than the stock 128 x 64 mono GLCD and touchsceen for the easypic5. Whilst it's pin for pin compatible with the parallel header on the EasyPic5 board, I can't use that due to the issue mentioned above. But it also has an SPI interface, which would make life simpler on the pin count. But then I need a PIC that has 2 MSSP's so I can use the i2c bus for other items such as the DS1307 RTC chip.
Anyone know of an 18F device in a 40 pin package that has two MSSP's that can be configured independently for the two protocols.