| ??? 04/27/08 13:48 Read: times |
#154034 - of course, it don't Responding to: ???'s previous message |
LCD_PORT = 0xff; // Set data port for input
However with the Silabs chip, I am configuring P0 as the LCD_Port in the cross bar in Push-Pull mode. And the above function does not work of course, it don't you can't input to a push-pull Now, beware, the SILabs chips do not have the "brief hard pullup" in quasi-bidirectional, so you need an external pullup resistor for the output fron quasi ports (or go excruciatingly slow) Erik PS I an driving VFD's from a SILabs chip and use external pullups, followed by a LVC7245 level converter. The "5V tolerant" does work, but you will incur some slowdown. PPS DO, PLEASE read in the datasheet for the 5V tolerant, if you use it (there is an appnote as well) I have never used it so do not take my word for how to configure the port, just do not use push-pull |
| Topic | Author | Date |
| Silabs C8051F020 and LCD busy bit | 01/01/70 00:00 | |
| of course, it don't | 01/01/70 00:00 | |
| Pushpull... | 01/01/70 00:00 | |
| Problem solved | 01/01/70 00:00 | |
| Misinterpreting | 01/01/70 00:00 | |
| Another one on the Silabs IDE.. | 01/01/70 00:00 | |
| SiLabs to Keil | 01/01/70 00:00 | |
| post this in the SILabs forum | 01/01/70 00:00 | |
| editor is not keil | 01/01/70 00:00 | |
| never used it, but .... | 01/01/70 00:00 | |
ASS U ME | 01/01/70 00:00 | |
| my very reason for not doing the push-pull | 01/01/70 00:00 |