| ??? 02/17/09 16:07 Read: times |
#162513 - Perhaps the SD in SPI mode will work Responding to: ???'s previous message |
Jecksons Ben said:
Hai
Thank you for info's Richard Erlacher said:
SD is easy if you don't mind going very slowly. However, since you pay for the "high performance" whether you use it or not, you should be able to use the 4-bit mode. However, the 4-bit mode requires a fair amount of interface-specific hardware. You can easily implement the interface in programmable logic (e.g. FPGA) but getting the proper specification is a pain. How's about CPLD? Those would work, too. Richard Erlacher said:
... A single-bit-mode SD interface can operate at up to 25 Mbits/second. If that's fast enough for you, perhaps that will be easier yet, as it is essentially an SPI. |
| Topic | Author | Date |
| IDE to MMC/SD | 01/01/70 00:00 | |
| Think: "Components" | 01/01/70 00:00 | |
| There are problems ... mainly for homebrew ... | 01/01/70 00:00 | |
| CF didn't available here. | 01/01/70 00:00 | |
| Perhaps the SD in SPI mode will work | 01/01/70 00:00 | |
| Need url for starting point | 01/01/70 00:00 | |
| I use www.google.com | 01/01/70 00:00 | |
| I tried to help you ... but ... | 01/01/70 00:00 | |
try this one | 01/01/70 00:00 | |
| how much do you need?? | 01/01/70 00:00 | |
| Need 5-6 pieces | 01/01/70 00:00 |