Search found 8 matches

by JacquesC
Mon Dec 16, 2019 6:10 pm
Forum: Drivers for External Components
Topic: 24LC512 I2C memory
Replies: 11
Views: 1212

Re: 24LC512 I2C memory

Since last month I didn't knew FRAM memory that is why I have chosen an eeprom memory until a FRAM one. But with your driver it is not a problem now every thing works perfectly ;) Your work on the FRAM memory is so interressing that I have ordered some of them : FM24CL16-G FM24CL16 sop-8 16Kb FRAM S...
by JacquesC
Sun Dec 15, 2019 7:57 pm
Forum: Drivers for External Components
Topic: 24LC512 I2C memory
Replies: 11
Views: 1212

Re: 24LC512 I2C memory

Many many Thanks Peter, you are a BOSS !!!
What a great job !
Please, send me a post adresse in private message to send you chocolates ;-)
I haven't others words than BRAVO !
by JacquesC
Sun Dec 08, 2019 6:29 pm
Forum: Drivers for External Components
Topic: 24LC512 I2C memory
Replies: 11
Views: 1212

Re: 24LC512 I2C memory

Thanks a lot for your answers.
I will have a look next week. I haven't got the choice, I have to find a solution, the eeprom is soldered on the board :roll: and I bought about twenty :?
I will come back soon
Jacques
by JacquesC
Sat Dec 07, 2019 4:22 am
Forum: Drivers for External Components
Topic: 24LC512 I2C memory
Replies: 11
Views: 1212

24LC512 I2C memory

Hello, does somebody used an I2C memory like a 24LC256 or I2C512 ? Each time I try to write at any adress, I always read the same value : # I2C Memory : 24LC512 # Wired : A0, A1, A2 and WP to Vss (GND) # 4k7 pullup resistors to Vdd (3.3V) on SCL and SDA pins # The I2C memory response '80' to a i2c.s...
by JacquesC
Sat Feb 23, 2019 9:46 am
Forum: Other Boards
Topic: Black STM32F407VE6 : access to the SD card and modify root files.
Replies: 4
Views: 652

Re: Black STM32F407VE6 : access to the SD card and modify root files.

I anderstand the problem But if I want to write to the SD card I ve got an error : >>> paste mode; Ctrl-C to cancel, Ctrl-D to finish === import pyb === import os === os.mount(pyb.SDCard(), '/sd') === os.chdir('/sd') === Traceback (most recent call last): File "<stdin>", line 3, in <module> Attribut...
by JacquesC
Fri Feb 22, 2019 8:25 pm
Forum: Other Boards
Topic: Black STM32F407VE6 : How to use the C libraries of a sensor ?
Replies: 2
Views: 479

Black STM32F407VE6 : How to use the C libraries of a sensor ?

Hello, I have to use sensors in I2C and others for which I have only libraries in C ++ (arduino). I know how to use them in C but I have to find a way to use them with micropython for my students. I thought I saw that it was possible to call libraries in C would there be a tutorial somewhere? Thank ...
by JacquesC
Fri Feb 22, 2019 8:19 pm
Forum: Other Boards
Topic: Black STM32F407VE6 : access to the SD card and modify root files.
Replies: 4
Views: 652

Black STM32F407VE6 : access to the SD card and modify root files.

Hello, For several days I have been blocking on several issues: I have to save the data of a sensor in a file on the SD card. 1 - How to access the SD card reader? 2 - On the same subject: how to modify files on the "partition" which contains Root.py and main.py. As for writing there is no problem b...
by JacquesC
Sun Feb 17, 2019 8:25 am
Forum: Other Boards
Topic: MCUDev Black STM32F407VET6 + STM32F407ZET6 dev boards
Replies: 143
Views: 53492

Re: Black STM32F407VET6 + STM32F407ZET6 dev boards

Thank you very much mcauser I spent two days finding the right files and installing the various tools (arm, st-util, ...) but I learned a lot of things ;-) The first tests I had compilation errors with the message "impossible to select the USB port" (something like that) when compiling usb.c, same m...