STORAGE -> UPDATE FIRMWARE installs a firmware .bin from the SD card.
The shell command "fwupdate {file}" checks a file, "fwupdate {file} flash"
installs it. Config, calibration and presets (0x0803C000 and up) are never
touched; ROM DFU (jog held at power-on) stays the recovery.
- Image format: STM32F303xC.ld inlines the code rules to place a header
(magic, model, size, version) directly after the vector table and a
trailer (end magic, size, CRC field left unset) at the end of the image.
Only images with the header are accepted.
- Before anything is erased, the running firmware reads the whole file with
FatFs (page CRCs, image CRC, card sector map from FIL.clust) and reads it
again with the raw sector reader used by the update (dry run).
- The flasher runs from CCM RAM with interrupts off and VTOR in CCM. It keeps
page 0 in RAM, erases page 0 first and programs it last after a full image
CRC check, skips unchanged pages, retries errors without user input and
initializes the SD card again after it was removed or keeps failing.
It draws a progress bar and resets only after jog is released, because
jog pressed at reset starts the ROM bootloader.
The tinySA ULTRA now enumerates as a composite device: the CDC serial
port plus a mass storage interface (Bulk-Only Transport, SCSI). The SD
card is only presented to the PC in USB DISK mode (STORAGE menu or shell
command 'usbdisk on|off'), which stops sweeping and screen updates so the
mass storage thread owns SPI1 and spi_buffer. Outside the mode the PC
sees an empty card reader, so the serial port never re-enumerates. The
mode ends on touch, jog button, eject from the PC, card removal or
'usbdisk off'.
- usb_msc.c/h: mass storage thread, BOT state machine, SCSI commands
- usbcfg.c: composite descriptors (IAD, bcdDevice 0x0201), bulk EP3,
requests hook, packet memory reuse on a repeated SET_CONFIGURATION and
data toggle reset on CLEAR_FEATURE (both specific to this ChibiOS fork)
- ui.c: USB DISK menu item and mode screen
- main.c: 'usbdisk' command; shell commands that could use SPI1 are
refused while the mode is active
F072 builds are unchanged. Tested on HW V0.5.4 with Windows 11: about
620 KB/s read and 370 KB/s write, data verified against FatFs reads.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
- ChibiOS: send a zero length packet after any multiple of the bulk IN
packet size (backport from ChibiOS 21.11)
- halconf.h: name the serial buffer settings the way this ChibiOS fork
reads them (values equal to the defaults in use)
- shell_reset_console(): call the I-class queue functions locked
- VNAShell_executeLine(): enqueue the shell thread locked and only while
the command is still pending
- btn_wait_release(): wrap-safe repeat timing
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
The RTC backup checksum covers every byte except the checksum itself, including a reserved packed byte that was never assigned. Its stack value could therefore make otherwise valid state fail verification after reset.
Zero-initialize the complete backup image before assigning persisted fields so the checksum and reserved byte are deterministic.
It's now possible to save capture, traces, or both by clicking SD card icon
Disabling both options hides SD card icon
Config submenu was added to Storage menu, and all settings were moved there
Existing config remains valid, and default behavior with saving a capture is kept
added run "file.name" console command, only for in cmd file
added AUTO SAVE to trigger menu
added wait {seconds} console command
added 3rd waterfall size
erikkaashoek
PhysicistJohn
Shellever.IDX
Kevin Kettinger
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Bohdan Kmit