LP-EM-CC2755P10 (CC2755P10)

Quick facts

Get it running

First blink: 41 s from plug-in to a changed blink (terminal).

What works

• CoreMark: 426.31 (4.44 per MHz) (TI Arm Clang, bare metal, -O3; 96 MHz; 3 runs)
• Flash to Bluetooth advertising: 0.90 s
• Bluetooth connect and discover services: 0.55 s (Mac as central through bleak; connect and discover services; 3 runs)
• Boot to joined network: 5.7 s (2 runs)
• Radio command to state change, median: 87 ms
• RAM left after linking the radio stack: 137.1 kB (same build; 162 kB SRAM; link only, not flashed)
• Interrupt latency, pend to first handler line: 21 cycles (bare metal; 96 MHz; 3 runs)
• GPIO toggle: 3.99 cycles (bare metal, -O3; 96 MHz; 3 runs)
• Blink image size: 7 kB of flash, 10.1 kB of RAM (bare metal)
• Room-occupancy AI model, one inference: 0.952 ms (-O2; 96 MHz; 3 runs)

Download every result for this board (CSV), or compare it on this board on the Benchmarks page.

Projects and ports that ran here

• Blink an LED: 41.0 s from the terminal, board plugged in, tools installed
• Run a small AI model on the chip: 0.95 ms per answer, fastest build on this chip
• Measure how fast a chip runs: 426 CoreMark score at the board's top clock
• Join a Thread network: Full Thread device became leader of a new network 12 s after start (one run)
• Build and flash from the terminal: 14 s TI examples built
• Configure a TI radio chip with ESPHome: Zigbee router: esphome compile 35 s, esphome upload 15 s, joins ZHA 5.7 to 6.3 s later (two flashes); switches the LED 32 of 32 times
• Post-quantum on every board: Both algorithms
• ESPHome Zigbee device on the LP-EM-CC2755P10 Works: An ESPHome YAML with cc27xx: builds and flashes a Zigbee device that joins Home Assistant on the CC2755P10.
• Matter smoke and CO alarm over Thread on the LP-EM-CC2755P10 Works: TI's Matter lighting app rebuilt as a smoke and CO alarm boots on the CC2755P10, exposes the smoke alarm cluster and changes state from a UART line 20 of 20 times.
• OpenOCD flash driver for the LP-EM-CC2340R5 and LP-EM-CC2755P10 Works: OpenOCD erases, writes, verifies and restarts a blink on the CC2340R5 over the XDS110, with no CCStudio or UniFlash.

Fixes

• If you see FRL-E099 FAILED: KeyError: 'deviceid' from frl identify --board cc2755p10, use frl identify --probe <serial>; it names the chip (CC2755P105E0WRHAR).
• If you see the portable app on this board (TI Drivers), build with portability/three-ways/tidrivers/build_cc2755p10.sh (SysConfig 1.28.0 here).
• If you see Error -2001 right after a TI example such as zigbee/rf_test ran, with debug authentication "not required", unplugging the probe's USB for ten seconds is not run; docs/remote-board-recovery.md shows how to read the boot status.
• If you see undefined node label 'boosterpack_spi' from west build --shield ti_bp_cc140xp, build with no --shield; pass -DEXTRA_DTC_OVERLAY_FILE=ports/cc1407p-zephyr/boards/lp_em_cc2755p10.overlay.
• If you see a CC1407P host image prints nothing, or stops after its first line, fit the radio (red LED jumper off, wire from header pin 23 to pin 10) or add your own timeout.
• If you see TI Drivers example from the CC2340R5 on this board, copy the CC2755P10 project and overwrite its .c files; the log example needs 3,000,000 baud, every other UART example 115200.
• If you see sysconfig_cli.sh: not found in ot-ti's script/build, export TI_SYSCONFIG_ROOT.
• If you see <cerrno> tried including <errno.h> but didn't find libc++'s <errno.h>, use -idirafter on source/ti/posix/ticlang for C++ files.

Every fix for this board in its FAQ

For AI assistants

Point your assistant at this board's AGENTS.md (build, flash and fix notes) and the repository's llms.txt (the index).