| ??? 03/26/11 11:52 Modified: 03/26/11 11:55 Read: times |
#181645 - tried a few things Responding to: ???'s previous message |
Jim Granville said:
Find a newer date code, AT89C51RD2, and try that it is just about impossible to find these. I am willing to bet that a newer version of the same chip will probably work. Jim Granville said:
Toggle a pin and connect to SS, in case that matters I did try that, I got nothing from the Logic analyzer. I have disabled SS in the SPI initialization in the above code. Jim Granville said:
Try other modes, in case your devices have a issue not in the errata Well, I believe that the datasheet is wrong. I just thought someone would know for sure. I wanted to use (get rid of) the RD2's I have here. They are working perfectly (except for the SPI) which I believe is not present in the version I have. My bit-bang routines are working (using the same pins the hardware SPI uses). I am doing a sound project using a vs1011e, sending a couple of very small MP3 files to the vs1011e using SPI. It is working using the bit-bang method at the moment. |
| Topic | Author | Date |
| Hardware SPI in AT89C51RD2 | 01/01/70 00:00 | |
| Hardware SPI in AT89C51RD2 | 01/01/70 00:00 | |
| tried a few things | 01/01/70 00:00 | |
| Temic marked as Atmel | 01/01/70 00:00 | |
| thankyou Jan | 01/01/70 00:00 | |
| signature bytes | 01/01/70 00:00 | |
| signature | 01/01/70 00:00 | |
maybe | 01/01/70 00:00 | |
| Looks like mode #1 to me | 01/01/70 00:00 | |
| header files | 01/01/70 00:00 | |
| Spend the time to create proper header file | 01/01/70 00:00 | |
| RE: i could never find the right header file | 01/01/70 00:00 |