I can use rs232 to upload bitmap for GLK12232-25-SM, but can I2C support the upload? cause the datasheet said the upload process need negotiate between LCD module and MCU, but for I2C , how to support that ?
The I2C protocol communication is half-duplex
Search found 3 matches
- Mon Aug 13, 2007 11:36 pm
- Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
- Topic: Can GLK12232-25-SM module use I2C to upload bitmap?
- Replies: 1
- Views: 2879
- Sun Aug 12, 2007 11:55 pm
- Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
- Topic: I2C interface of GLK12232-25-SM
- Replies: 2
- Views: 3201
- Fri Aug 10, 2007 1:21 am
- Forum: LK/ELK/VK/PK/OK/MX/GLK/EGLK/GVK/GLT
- Topic: I2C interface of GLK12232-25-SM
- Replies: 2
- Views: 3201
I2C interface of GLK12232-25-SM
I am using GLK12232-25-SM Rev1.4 board I2C interface. I found that the LCD module will tie SCL signal to low when in idle, but in I2C spec, it should be open and let the pull up resistor to pull it to high logic. I do not know why, is this an issue of Rev1.4 board? I checked the controller ...