History

dragonmux d6f8a343a2 platform: Fixed the order of operations with the physical UART init vs the USB stack init		2022-08-12 22:25:52 -07:00
..
Makefile.inc	96b_carbon: Updated so that it compiles in the current codebase.	2022-06-03 20:35:51 -07:00
Readme.md	platforms: Cleaned up and fixed many markdown lint errors, improving the formatting of many of the platform README's	2022-06-26 16:51:58 -07:00
platform.c	platform: Fixed the order of operations with the physical UART init vs the USB stack init	2022-08-12 22:25:52 -07:00
platform.h	misc: Updated comments and READMEs to properly reflect pinouts and function	2022-06-26 16:51:58 -07:00
usbdfu.c	Add 96Boards Carbon as a probe host	2022-05-31 20:59:17 -04:00

Readme.md

96b Carbon

Connections

The pinout for the programmer is concentrated within a single part of the Low Speed connector. The target control pins at the even pins 2 through 16 with UART on LS-03 and LS-05.

The pinout for the programmer allows a Carbon to program another Carbon (either the STM32 or the nRF51) with adjacent pins from LS-06 to LS-12. The order matches that of the SWD pins for easy hook up.

JTAG/SWD

LS-02 (PB12): TDO/TRACESWO
LS-04 (PB15): TDI
LS-06 (PB14): TMS/SWDIO
LS-08 (PB13): TCK/SWCLK
LS-10 : GND
LS-12 : Vcc
LS-14 (PC3) : TRST (optional Test Reset)
LS-16 (PC5) : nRST (nRST / System Reset)

LEDs

USR1 (green): Debug activity indicator
USR2 (green): UART activity indicator
BT (blue) : Error indicator

UART

LS-03 (PA2): UART TX
LS-05 (PA3): UART RX

How to Build

cd blackmagic
make clean
make PROBE_HOST=96b_carbon

Flashing using dfu-util

Connect to the USB OTG socket on the Carbon and force the device into system bootloader mode by holding down the BOOT0 switch whilst pressing and releasing the RST switch. To program the device try:

sudo dfu-util -d [0483:df11] -a 0 -D src/blackmagic.bin -s 0x08000000

Self-programming

A Carbon is capable of self-programming its own nRF51 by connecting two jumper wires from LS-06 to BLE_SWD-4 (DIO) and LS-08 to BLE_SWD-3 (CLK).

+------------------------------------------------------------------+
|  +-2--4--6--8-10-12-14-16-18-20-22-24-26-28-30-+                 |
|  | .  .  .-+.-+.  .  .  .  .  .  .  .  .  .  . |                 |
|  | .  .  . |. |.  .  .  .  .  .  .  .  .  .  . |                 |
|  +-1--3--5-|7-|9-11-13-15-17-19-21-23-25-27-29-+                 |
|            |  |                                                  |
|            +--+-----------------------------+                    |
|               |                             |                    |
|               +--------------------------+  |                    |
|                                          |  |                    |
|                                    .  .  .  .  .                 |
|                              .  .  .  .  .  .  .  .  .           |
+------------------------------------------------------------------+