dsm

Hi thorsten thanks for the answer, I chose the version "RB" because I needed a very simple application and a USB device, and also to give it a try. So having these limits I'll try the upgrade, but desoldering ..... Ok, no problem, thanks again, Bye.

Hi , my first post , sorry for my poor english but after several successful experiments in the MidiBox world ( Pic based Core ) , i failed with Core32. My schematic derives from the original MBHP_CORE_STM32 except for some difference and omissions ,STM32F103RBT6 instead of "RE", no SD interface, no lcd, no jtag, etc. and relative components like pull_up resistors and other. This is not my first SMT project and everything seems ok, but .... 1° step : Upload MIOS32 bootloader with Flash Loader from STMicroelectronics , OK 2° step : Power cycle with boot jumper in NORMAL MODE no signs o flife , no led flashing, no USB recognition 3° step : Power cycle with boot jumper in HOLD MODE MIOS Studio 2 recognizes the core as "USB Speaker" ( Windows XP ? ), reports correct operating system, board, etc. but a wrong ram size, over 60 MB !! 4° step : I try to load an application previously compiled successfully, no errors reports but nothing changes from previous step When I compiled my test application with success (011_ain from programming tutorial) in the environment variables I specified the type of processor, it is sufficient? The different processor "RB" instead of "RE" require other particular settings ? If I fried the processor, this behavior is not strange? Someone has an idea, suggestions ? Thanks for reading. core32.pdf