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Harald Welte gerrit-no-reply at lists.osmocom.orgHarald Welte has submitted this change and it was merged. ( https://gerrit.osmocom.org/12791 ) Change subject: document flashing procedure for sysmoOCTSIM ...................................................................... document flashing procedure for sysmoOCTSIM the sysmoOCTSIM board does not have an onboard EDBG adapter such as the SAM E54 Xplained Pro board. instead SWD is used directly. Change-Id: I85aa4db62464d0a1b558968d0423e2adbe491a4f --- M README.md 1 file changed, 12 insertions(+), 10 deletions(-) Approvals: Jenkins Builder: Verified Harald Welte: Looks good to me, approved diff --git a/README.md b/README.md index 031bc27..e39f5c1 100644 --- a/README.md +++ b/README.md @@ -1,8 +1,7 @@ This is an implementation of the DFU mode of the [USB DFU Device Class Specification](https://usb.org/document-library/device-firmware-upgrade-11-new-version-31-aug-2004) for the Microchip SAM D5x/E5x micro-controller. It is meant to be used as bootloader to allow flashing the main application over USB. -The code has been developed for the Microchip [SAM E54 Xplained Pro](https://www.microchip.com/DevelopmentTools/ProductDetails/PartNo/ATSAME54-XPRO) development board using a [SAM E54](https://www.microchip.com/wwwproducts/en/ATSAME54P20A) micro-controller. -It should work on any chip of the SAM D5x/E5x device family by replacing the corresponding device-specific definitions (usually including the chip name in the file name). +This branch is specific to the proprietary sysmocom sysmoOCTSIM hardware. The code uses the [Atmel START](https://start.atmel.com/) ASFv4 library. @@ -31,7 +30,7 @@ Flashing ======== -To flash the bootloader you can either use the [edbg tool](https://github.com/ataradov/edbg) over the EDBG interface of the SAM E54 Xplained Pro development board, or OpenICD with any SWJ adapter. +To flash the bootloader you can use OpenOCD with any SWJ adapter. The USB DFU bootloader should be flashed in a protected area of the flash memory to prevent for erasing it, as specified in data sheet section 25.6.2 Memory Organization. The bootloader size is configured in the NVM user configuration BOOTPROT field, as specified in data sheet section 25.6.9 NVM User Configuration. @@ -40,11 +39,14 @@ This setting will also tell the bootloader where to flash the application firmware to (e.g. after the bootloader reserved space). The LED will blink once per second if this size is not set. -EDBG ----- +ST-LINK/V2 +---------- -To flash the USB DFU bootloader, perform the following actions: -* remove reserved bootloader space so we can erase it: `edbg --target atmel_cm4v2 --fuse wv,29:26,15` -* erase the whole flash: `edbg --target atmel_cm4v2 --fuse v,29:26,15 --erase` -* program the bootloader: `edbg --target atmel_cm4v2 --fuse v,29:26,15 --program --verify --file AtmelStart.bin` -* reserve bootloader space: `edbg --target atmel_cm4v2 --fuse wv,29:26,13` +To flash the USB DFU bootloader, we will use OpenOCD (with the [SAM E54 patch](http://openocd.zylin.com/#/c/4272/) and a ST-LINK/V2 SWD adapter. +The command will perform the following actions: +* remove reserved bootloader space so we can erase it (and reset MCU for change to be effective) +* erase the whole flash +* program the bootloader +* reserve bootloader space + +`openocd --file interface/stlink.cfg --command "transport select hla_swd" --command "set CHIPNAME same54" --command "set CPUTAPID 0x2ba01477" --file target/atsame5x.cfg --command "init" --command "reset halt" --command "atsame5 bootloader 0" --command "flash erase_sector 0 0 last" --command "reset halt" --command "program ./AtmelStart.bin" --command "atsame5 bootloader 16384" --command "reset run" --command "shutdown"` -- To view, visit https://gerrit.osmocom.org/12791 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-asf4-dfu Gerrit-Branch: sysmoOCTSIM Gerrit-MessageType: merged Gerrit-Change-Id: I85aa4db62464d0a1b558968d0423e2adbe491a4f Gerrit-Change-Number: 12791 Gerrit-PatchSet: 1 Gerrit-Owner: Kévin Redon <kredon at sysmocom.de> Gerrit-Reviewer: Harald Welte <laforge at gnumonks.org> Gerrit-Reviewer: Jenkins Builder (1000002) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20190207/78771220/attachment.htm>