I will have this tomorrow and am looking for info on where to start learning how to make this work for a Prop loader direct out of BST or other IDE. If it is too much work to tackle, then the other will be to just upload 32k to spare eeprom space from my own GUI, verify the transfer, then move the 32k to eeprom bootload space. The real goal is a driverless field replaceable firmware method with my own GUI. For shop development, there can be a FT232 based board if the Silabs is not going to be programmable via BST(bstl). The field replacement will always be with my own mac/pc GUI, so it is not such a big deal to me to handle the Prop load protocol. The odds of crashing during an I2C eeprom transfer from higher address to lower address are small.
Here is some serial loader info Mike Green posted, but this is surely way over my head. I am not messing with any variant of C.
Tonyp12 loader with C# and SiLabs.
I have a test board in the works for the SiLabs>Prop tester, which is a week or so out if anyone is interested let me know I will send it if someone wants to work on this.