| ??? 07/10/17 07:31 Read: times |
#190793 - MCU choices Responding to: ???'s previous message |
David Kitson said:
So I created a simple single-byte markup language that is human readable, and used the '8252 to just translate - It takes serial input, buffers it ( up to 128 bytes, but can do more ) then can transfer it to the SPI, reads the SPI output, and returns this to the buffer, which can be dumped out in hex by a single byte command. It's a good idea to keep the remote side simple, but keep in mind some ISP solutions requires a Clock for the MCU as well. David Kitson said:
So if anyone is having programmer troubles and needs a good simple SPI programmer, happy to help - Though you'll have to be able to program at least some SPI capable chip like an 89S8252 to begin with. That has something of a Catch-22 about it. You are probably better using an AT89LP51RB2, as host, which has an inbuilt Serial boot loader, so someone can program it initially via UART. David Kitson said:
Otherwise, if anyone likes this idea and wants to assist with further development ( eg, Windows user-friendly interface, or programmer front-ends ) or even ideas or wishes they'd like to see included, please reply here. Did you look at TSim51 ? http://turbo51studio.orgfree.com/downloads...-setup.zip That has ISP for AT89LP series, already done :) |
| Topic | Author | Date |
| SPI Encapsulation Layer Programmer for SPI | 01/01/70 00:00 | |
| all that ... | 01/01/70 00:00 | |
| Sometimes, better to understand why something isn't working. | 01/01/70 00:00 | |
| I did not | 01/01/70 00:00 | |
MCU choices | 01/01/70 00:00 |