Hello,
Has anyone been able to have the mbed CLI detect and flash the Portenta_H7_M7 as a target?
I’m running Ubuntu 20.04.2 LTS on a VM and I can compile the *blinky-baremetal * project with no problem. The only thing is I fail to flash when using the command:
mbed compile -m PORTENTA_H7_M7 -t GCC_ARM --flash --sterm
Simply put, the CLI cannot detect the board.
I have tried …
- Plugging the USB in and out
- Using
lsusb - Using
ls -a /dev/ttyACM*
I know I can …
- Build with mbed CLI
- Select the Portenta as a target
- Using latest mbed-os release: 6.8.0
What I have installed/running…
- cmake: v3.16.3
- mbed-os: v6.8.0
- arm-none-gcc: 10.2.1 (I know, I know, it gives me a warning about; but that’s not the problem; I have used 9.x.x version before too)
Output of mbed config -G -L
[mbed] Global config:
GCC_ARM_PATH=usr/bin/arm-none-eabi-gcc
MBED_OS_DIR=/home/ponirs/mbed-os
[mbed] Local config (/home/ponirs/mbed_dev/blinky-baremetal):
TOOLCHAIN=GCC_ARM
TARGET=PORTENTA_H7_M7
I’ve also seen that the mbed Studio also picks up the option to choose the Portenta H7 as a target. I can build with it as well. However, it is the same issue as the CLI; which makes perfect sense to me. The CLI and the Studio do the same operation in different ways.
Here is my mbed compile -f --sterm output:
$ mbed compile -f --sterm
[mbed] Working path "/home/ponirs/mbed_dev/blinky-baremetal" (program)
[mbed] WARNING: Missing Python modules were not auto-installed.
The Mbed OS tools in this program require the following Python modules: future, cryptography
You can install all missing modules by running "pip install -r requirements.txt" in "/home/ponirs/mbed-os"
On Posix systems (Linux, etc) you might have to switch to superuser account or use "sudo"
---
WARNING: MBED_GCC_ARM_PATH set as environment variable but doesn't exist
[Warning] @,: Compiler version mismatch: Have 10.2.1; expected version >= 9.0.0 and < 10.0.0
Building project blinky-baremetal (PORTENTA_H7_M7, GCC_ARM)
Scan: blinky-baremetal
Using ROM region application in this build.
Region application: size 0x100000, offset 0x8000000
Using RAM region application_ram in this build.
Region application_ram: size 0x80000, offset 0x24000000
Link: blinky-baremetal
Elf2Bin: blinky-baremetal
Merging Regions
Filling region application with ./BUILD/PORTENTA_H7_M7/GCC_ARM/blinky-baremetal_application.bin
Space used after regions merged: 0x76e0
Merging Regions
Filling region application with ./BUILD/PORTENTA_H7_M7/GCC_ARM/blinky-baremetal_application.bin
Space used after regions merged: 0x76e0
| Module | .text | .data | .bss |
|------------------|-----------|---------|----------|
| [fill] | 56(+0) | 3(+0) | 18(+0) |
| [lib]/c_nano.a | 2584(+0) | 100(+0) | 14(+0) |
| [lib]/gcc.a | 772(+0) | 0(+0) | 0(+0) |
| [lib]/misc | 188(+0) | 0(+0) | 28(+0) |
| [lib]/nosys.a | 16(+0) | 0(+0) | 0(+0) |
| main.o | 108(+0) | 0(+0) | 28(+0) |
| mbed-os/drivers | 80(+0) | 0(+0) | 0(+0) |
| mbed-os/hal | 1466(+0) | 8(+0) | 114(+0) |
| mbed-os/platform | 4934(+0) | 4(+0) | 306(+0) |
| mbed-os/targets | 16828(+0) | 13(+0) | 1484(+0) |
| Subtotals | 27032(+0) | 128(+0) | 1992(+0) |
Total Static RAM memory (data + bss): 2120(+0) bytes
Total Flash memory (text + data): 27160(+0) bytes
Update Image: ./BUILD/PORTENTA_H7_M7/GCC_ARM/blinky-baremetal_update.bin
Image: ./BUILD/PORTENTA_H7_M7/GCC_ARM/blinky-baremetal.bin
[mbed] ERROR: The target board you compiled for is not connected to your system.
Please reconnect it and retry the last command.
---
My board is definitely detected by my VM because I can flash to it using the Arduino IDE and Arduino Pro IDE. They use dfu-utils but I’m not super familiar with how the mbed-tools flash through USB. Unless, I need an external debugger/programmer for the Portenta. But, I doubt it since I see SWD/JTAG pins in the schematic. However, I haven’t closely looked at what they are connected to. So, I should probably do that as well… 
Here is what is connected to my VM though USB:
ls -a /dev/ttyACM* output:
/dev/ttyACM0
lsusb output:
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 004: ID 0e0f:0002 VMware, Inc. Virtual USB Hub Bus 003 Device 003: ID 0e0f:0002 VMware, Inc. Virtual USB Hub Bus 003 Device 005: ID 2341:025b Arduino SA Envie M7 Bus 003 Device 002: ID 0e0f:0003 VMware, Inc. Virtual Mouse Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 0e0f:0002 VMware, Inc. Virtual USB Hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Please let me know if there is any additional info I missed. I’m still learning about mbed tools and have a little experience with STM MCUs (Team HAL drivers! 
) but this RTOS stuff is a brand new world for me.
I’ve been stuck on this for days and I’m finally reaching out to the community since the Arduino IDEs are not a good option for debugging ANYTHING. 
I hope someone can point me out in the right direction.