1 unstable release
0.1.0 | Mar 7, 2021 |
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#8 in #jtag
15KB
267 lines
SPIDAP
SPIDAP allows you to use CMSIS-DAP compatible probes in JTAG mode to access SPI flash memories directly, using the JTAG signals to emulate SPI.
The probe must be connected directly to the SPI flash:
JTAG signal | SPI Flash |
---|---|
JTMS | CS |
JTCK | CLK |
JTDI | SDI |
JTDO | SDO |
Pre-built Binaries
Pre-built binaries are available for Windows and Linux on the Releases page. You must have libusb installed or available on your system, and you must have permissions or drivers set up to access your CMSIS-DAP probe.
Building
- You must have a working Rust compiler installed. Visit rustup.rs to install Rust.
- libusb is recommended to use the higher-speed CMSIS-DAPv2 protocol, where supported by your probe.
- You may need to set up drivers or permissions to access the USB device.
To build and install for your user, without checking out the repository:
cargo install spidap
Or, building locally after checking out this repository:
cargo build --release
You can either run the spidap executable directly from target/release/spidap
,
or you can install it for your user using cargo install --path .
.
Usage
Run spidap help
for detailed usage. Commonly used commands:
spidap probes
: List all detected CMSIS-DAP probesspidap id
: Read the flash manufacturer and product IDsspidap scan
: Read the flash SFDP metadata and status registersspidap write data.bit
: Writedata.bit
to flash memory.
Licence
spidap is licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Dependencies
~7–17MB
~224K SLoC