About FF1

FF1 · 2021-07-24

Dear Sir,I kindly ask you what is the quiescent current value of the driver with EN=HIGH (chip enable) and Vs up to 24V; into the datasheet at page 8/14 is written 2mA max @ Vs<=14V, what should be the maximum value with Vs equal 24V?On page 10/14 is...

FF1 · 2019-03-26

Dear all,I've finished my board and application around the L6480H stepper driver and cSPIN library, all is fine, but now I have to add at my application the boot loader feature in order to achieve the in-field firmware update possibility (attached a ...

FF1 · 2018-12-27

Hi all,using the STEVAL-PCC009V2 demo board I've connected an external EEPROM 24LC02 to this board by means of the I2C1 peripheral through the lines PB6 (SCL) and PB7 (SDA), these lines are available through the connector J2 (30 pin connectors on boa...

FF1 · 2018-12-07

Hi all,I'm developing a bipolar stepper motor application by means of a STEVAL-PCC009V2 + EVAL6480H boards coupled together.My application have to follow a position by means of an incremental encoder that is connected to the encoder quadrature module...

FF1 · 2018-11-30

Dear all,I'm checking if a variable assignement is atomic or not. I know that are many stuff on this subject but I need to approach from a low level perspective to better know what happen under the scene and then have better control of my code.To do ...

FF1 · 2018-12-28

To be more complete I've another point to put in evidence.If you perform a Write operation (no matter if single or multiple) you have to wait the writing time required to the EEPROM to perform the write operation, typically for the model used in this...

FF1 · 2018-12-28

Hi @S.Ma thank for your answer.Yes, the multiple byte write is intended just to perform a Page Write operation or write multiple byte inside the same page.Considering the 24AA02/24LC02B EEPROM a page write is made of 8 bytes (because the internal ...

FF1 · 2018-12-12

Concerning this matter, to get all working properly in a STEVA-PCC009V2 board (STM32F103RBT6), I had to disable the TX interrupt as the transmission buffer was completely transmitted, otherwise you have the interrupt trigger everytime so my way was (...

FF1 · 2018-12-07

Hi,I've also encountered big difficult in finding one EVAL6480H-DISC board so at the end I've decided to use another setup made of a STEVAL-PCC009V2 board + EVAL6480H, despite this require more space than the single EVAL6480H-DISC board, a nice side ...

FF1 · 2018-11-30

Thank you @Uwe Bonnes ,could you please let me know also about the apparent discrepance between the PC + 0x10c and the real address of my variable? There are 4 bytes in difference..Thank!BRFabio

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L9338 Quiescent current

STM32F103RBT6 migration from standalone application to one that integrate a bootloader

STM32F103RB and I2C interface

L6480 best driving (from motor motion perspective) strategy question

STM32F1 atomic operation (ISR and main variable sharing) and assembly question

Re: STM32F103RB and I2C interface

Re: STM32F103RB and I2C interface

Re: STM32F103 UART Tx interrupt

Re: EVAL6480H-DISC

Re: STM32F1 atomic operation (ISR and main variable sharing) and assembly question