ST9 bootloader using AN1275 questions

rpedrds · ‎2006-07-05

Posted on July 05, 2006 at 16:16

rpedrds · ‎2011-05-17

Posted on May 17, 2011 at 11:31

I am attempting to port the F120 bootloader described in AN1275 to my F150 platform. The call to Unprotect_Memory() does not return properly. That function calls a function in TESTFLASH, a function in FLASH, and a function in RAM. If I put five asm(''nop''); instructions after the Unprotect_Memory() call, subsequent prints to the monitor start working. I can't find what the asm(''calls 230038h'') does (AN1528) and I don't understand why we write NVAPR from FLASH and then write NVWPR from RAM. If anyone has a serial bootloader that works for the F150...

kapil · ‎2011-05-17

Posted on May 17, 2011 at 11:31

Did you checked AN1450?

scott239955 · ‎2011-05-17

Posted on May 17, 2011 at 11:31

Did you ever get something working? I need to do the same and am looking for sample code that works on the F150. I have looked at AN1450, but did not see where it addressed your questions.