SAMD51J20 bootloader

[potato45]

I flashed the uf2 bin bootloader using the Jlink edu and studio 7 says flash was successful. But when i plug in the usb to board. I dont see it on the device manager nor the Arduino IDE. i made a custom board using the Sparkfun Micromod SAMD51 M.2 board. SparkFun MicroMod SAMD51 Processor

I complied the code on the Arduino IDE and then exported the compiled binary.

The following are my fuse settings

AC_BIAS0 = 0x01
ADC0_BIASCOMP = 0x07
ADC0_BIASREFBUF = 0x04
ADC0_BIASR2R = 0x07
ADC1_BIASCOMP = 0x07
ADC1_BIASREFBUF = 0x04
ADC1_BIASR2R = 0x07
USB_TRANSN = 0x09
USB_TRANSP = 0x19
USB_TRIM = 0x06
ROOM_TEMP_VAL_INT = 0x1E
ROOM_TEMP_VAL_DEC = 0x01
HOT_TEMP_VAL_INT = 0x69
HOT_TEMP_VAL_DEC = 0x00
ROOM_INT1V_VAL = 0xFE
HOT_INT1V_VAL = 0x01
ROOM_ADC_VAL_PTAT = 0xABA
HOT_ADC_VAL_PTAT = 0xD37
ROOM_ADC_VAL_CTAT = 0xB88
HOT_ADC_VAL_CTAT = 0x95C
BOD33_DIS =
BOD33USERLEVEL = 0x1C
BOD33_ACTION = RESET
BOD33_HYST = 0x02
NVMCTRL_BOOTPROT = 0
NVMCTRL_SEESBLK = 0x00
NVMCTRL_SEEPSZ = 0x00
RAMECC_ECCDIS =
WDT_ENABLE =
WDT_ALWAYSON =
WDT_PER = CYC16384
WDT_WINDOW = CYC16384
WDT_EWOFFSET = CYC16384
WDT_WEN =
NVMCTRL_REGION_LOCKS = 0xFFFFFFFF

SW0_WORD_0 = 0x1E7079D (valid)
SW0_WORD_1 = 0x1B29 (valid)
TEMP_LOG_WORD_0 = 0xFE06911E (valid)
TEMP_LOG_WORD_1 = 0xD37ABA01 (valid)
TEMP_LOG_WORD_2 = 0xFF95CB88 (valid)
USER_WORD_0 = 0xFE9A9239 (valid)
USER_WORD_1 = 0xAEECFF80 (valid)
USER_WORD_2 = 0xFFFFFFFF (valid)

[dilshana]

Please check if the driver is missing or corrupted. MicroMod SAMD51 Processor Board Hookup Guide - SparkFun Learn

[potato45]

Thats the guide i followed, but the chips i have is a new chip from digikey that are blank but my design is based of the micromod samd51.

[PaulZC]

Hi @potato45 ,

Please see these posts:

Problems flashing bootloader to SAMD51 using Segger J-Link EDU and Microchip studio

“Bits 11:8 – BOOTPROT[3:0] Boot Loader Protection Size This bitfield is loaded from the NVM User page during the device startup (See the Memories chapter). Defines the size of the BOOTPROT region which is protected against write or erase or Chip-Erase operations. This size is given by the following formula (15-BOOTPROT)*8KB.” So, if I’m reading this right, 0 maximises the size of the write- and erase-protected region? I suggest setting it to 15, then erase, then write, then set it back to 0. Best, Paul

SAMD51 Thing Plus Processor Fuse Settings

I was wondering if anyone has the fuse settings used for the SAMD51J20A for Microchip Studio for the SAMD51 thing plus? I bought the SAMD51 thing plus dev. board (actually 3 of them at this point haha) to help in the development of a custom flight computer I am working on for a college engineering team, but have had a few problems with our board. One of them was the processor would consistently reset every 15s, and I was able to fix that by disabling the wdt_en fuse bits, but I still have some other weird problems that show up once in awhile. If it would be possible for someone to just copy the fuse settings from one and send them to me that would be amazing, I have had some trouble trying to solder wires onto one to connect it to the Atmel ICE debugger I have. Best, Barrett Twining

I hope this helps,
Paul