| ??? 07/06/06 04:20 Read: times |
#119715 - PCF8570 interface to AT89C52 |
Hi,
Anyone can help me? Now my data nearly ~200 and if i not mistake the AT89C52 RAM is very small. So, i need to add xRAM for my uController which is using PCF8570 89x51 have 128 bytes internal RAM, 89x52 have 256 bytes internal RAM. and we can't use this xdata keyword on our code because 89c52 do not have xRAM. So, Do you have any idea or sample of PCF8570 design on C code. I not familiar on assembler. Thank You. |
| 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 |