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Category Archives: STM32

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Use internal flash in STM32F4 to save explored maze

Posted on May 2, 2014 by Green
4

No matter how stable your mouse runs in maze, it always comes with the risk to crash during either search run or speed run. If it crashes at search ru[……]

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Posted in STM32 | 4 Replies

update: Finalized Design for Green Giant V4.1 Lite, PCB design submitted.

Posted on July 16, 2013 by Green
10

After times and times of changes on my newly coming mouse: Green Giant V4.1 Lite, I finally have chance to make a detailed review and had all the deci[……]

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Posted in PCB, STM32 | 10 Replies

How to use FLASH in STM32 to save explored maze instead of using EEPROM

Posted on April 20, 2013 by Green
15

As we all know, STM32 doesn’t build in EEPROM in the package. When I was designing my current mouse, I added a external I2C interface EEPROM to save e[……]

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Posted in STM32 | 15 Replies

an easy PID function

Posted on February 25, 2013 by Green
10

As what I promised, I will post my simply PID(PD) controller code here:

void PID(void)       
{    
    if((leftSensor > hasLeftWall &&amp[……]

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Posted in STM32 | 10 Replies

always the first function to test when mouse is constructed

Posted on February 17, 2013 by Green
2

I got my mouse constructed recently, everything were fine except the external crystal wasn’t oscillating, so I used internal crystal instead.

IMG_0902_resize IMG_0907_resize IMG_0917_resize IMG_0922_resize[……]

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Posted in STM32 | 2 Replies

Get Native 32Bit resolution for your encoder on STM32F4

Posted on February 13, 2013 by Green
7

For those who use STM32 F10x as the MCU for Micromouse must remember all general purpose timers are 16bits that gave you 65535 max resolution. Since t[……]

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Posted in STM32 | 7 Replies

a easier way to use pulse control for IR sensor

Posted on February 11, 2013 by Green
8

Since pulse controlled are getting pretty popular these days, emitter need to be turned on with a current higher than forward current at a relatively[……]

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Posted in STM32 | 8 Replies

a smarter way to write micros()

Posted on February 6, 2013 by Green
20

For those who use arduino before must know the function micros() returns system time in microseconds. AVR based arduinos use TIMER0 in MCU(such as ATM[……]

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Posted in STM32 | 20 Replies

How to config interrupts priorities for STM32

Posted on January 30, 2013 by Green
26

I am testing nested interrupt recently on my STM32 dev board in order to ensure the relationships between nested interrupts are clear for me. I’ve rea[……]

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Posted in STM32 | 26 Replies

how to make a simple auto download circuit for STM32

Posted on January 25, 2013 by Green
8

For those who know successfully downloaded code to STM32 through built in ISP must remember that you have to hold boot0 button(assume boot1 is already[……]

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Posted in Micromouse Construction, PCB, STM32 | 8 Replies

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