| ??? 07/06/06 06:09 Read: times |
#119717 - You mean one of these? Responding to: ???'s previous message |
PCF8570; 256 x 8-bit static low-voltage RAM with I²C-bus interface
http://www.semiconductors.philips.com/pip/PCF85...571_1.html When asking questions about a specific part, always include a link to the datasheet Tang Bc said:
So, Do you have any idea or sample of PCF8570 design on C code. I not familiar on assembler. What exactly is your problem here? Do you not know the basics of how to use an I2C interface? Or do you have an I2C interface working, and just want to know how to use the RAM in 'C'? Because it's an I2C RAM, you will not be able to use it as XDATA. If you are using the full Keil kit, there is a technique to use serial-interfaced memories for "normal" 'C' variables - look up XDATA banking in the Manual, and also search for that term here. |
| Topic | Author | Date |
| PCF8570 interface to AT89C52 | 01/01/70 00:00 | |
| If that has i2c interface, | 01/01/70 00:00 | |
| You mean one of these? | 01/01/70 00:00 | |
| Not XRAM | 01/01/70 00:00 | |
| Don't know how to use the RAM in 'C' | 01/01/70 00:00 | |
| Please post formatted code | 01/01/70 00:00 | |
| yes, but why do it externally | 01/01/70 00:00 | |
| reason without changing uC | 01/01/70 00:00 | |
| ISP | 01/01/70 00:00 | |
| How to make ISP programmer | 01/01/70 00:00 | |
you do not 'make' isp | 01/01/70 00:00 |