Hello, I'm a newbie with MIDIBOX but have good knowledge of electronic. I ordered kits from Smash's TV and PIC from Microchip. I've burned my PIC (18F4620) successfuly with my Forest Electronics USB Prog'r+ programmer. The burning software has a verify function which told me that it was allright. :) I use the CORE module alone (in order to avoid other problems). I use a DC laboratory stabilised power supply (9V). The power consumption is of about 50mA. I use MIOS Studio beta7. I configure MIDI IN/OUT. I receive every 2 seconds: Sysex message: F0 00 00 7E 40 00 01 F7 I select the HEX file corresponding to the 18F4620: mios_v1_9f_pic18f4620.hex In MIOS Studio, I click on "Wait for upload request before starting upload" and "Smart Mode - Use feedback from core". Then I switch OFF the PSU and click on "Start". After that I switch ON the PSU and get the following messages: Starting upload of mios_v1_9f_pic18f4620.hex Hex file contains code in MIOS range, forcing reboot! Received Upload Request Sending block 00000400-000004FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Sending block 00000500-000005FF Error: Received unexpected Upload Request Aborting after 16 errors The MIDI IN monitor continues (also during transfer) to show every 2 seconds: Sysex message: F0 00 00 7E 40 00 01 F7 I've tried several checks (I've read the MIDI Interface Troubleshooting page): - all the resistors/diodes are correct - the debug LED on Rx works well - when I remove the PIC and short Rx and Tx on PIC socket the emitted data are shown on MIDI IN monitor So I've plugged a digital scope on Rx (red) and Tx (blue) pins. See attached files... Thanks in advance for your help/ideas. nsunier
