| ??? 07/31/09 08:01 Read: times |
#168052 - Also >= 256kB flash Responding to: ???'s previous message |
The minimum footprint is 64KB RAM, 256KB Flash.
And they note that it isn't a real-time OS, but can be hosted on a RTOS. Sounds like you get one or more macro-programmable worker threads that you have to cram together with a real RTOS, or settle for a system where you will have to keep buttons pressed until you hear the confirming beep. The faster ARM9 can obviously take a lot of abuse, but it must be a testing nightmare if we get non-deterministic ARM7 systems with memory garbage collect. A funny note that shows how experienced they are with embedded processors is that they say they don't expect the processor to have an external Memory Management Unit (MMU). A number of ARM chips have an internal MMU, but I don't think I have ever seen a processor using an external MMU, if we ignore the CPU-on-a-board (or maybe I should say CPU-is-a-board) type of processors common in older multi-user machines - mini computers and larger. |
| Topic | Author | Date |
| USB-to-Serial, but "backwards" | 01/01/70 00:00 | |
| USBWiz | 01/01/70 00:00 | |
| Good one - thanks! | 01/01/70 00:00 | |
| Similar to the FTDI thing | 01/01/70 00:00 | |
| Vinculum CDC | 01/01/70 00:00 | |
| Two different questions? | 01/01/70 00:00 | |
| A question and an approach? | 01/01/70 00:00 | |
| So you are looking for a CDC device driver? | 01/01/70 00:00 | |
| Basically, yes! | 01/01/70 00:00 | |
| .Net? | 01/01/70 00:00 | |
| Microsoft's .NET Micro Framework | 01/01/70 00:00 | |
| Micro$oft | 01/01/70 00:00 | |
| So Bill sells us an OS for LPC's | 01/01/70 00:00 | |
| Miniscule requirements | 01/01/70 00:00 | |
| as miniscule memory as 64kB RAM. | 01/01/70 00:00 | |
| Also >= 256kB flash | 01/01/70 00:00 | |
| "They" ? | 01/01/70 00:00 | |
Yes, they=Microsoft | 01/01/70 00:00 | |
| Atmel AT90USBKey (AVR) | 01/01/70 00:00 |