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stm32:peripherals:gpio [2016/02/25 07:10] – feurstm32:peripherals:gpio [2018/02/23 16:31] (current) – [GPIO Register Descriptions] ruan
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 ====== GPIO Port A..H ====== ====== GPIO Port A..H ======
  
-{{ gpio_complete.svg?350em}} +The STM32F429ZI has a total of 8 GPIO ports (A..H). Each port offers 16 I/O pins (except port H, which offers only 2). Each pin can individually be configured as input, output or be connected to one of the other peripherals (alternate function). 
- +
-The STM32F429ZI has a total of 8 GPIO ports (A..H). Each port offers 16 I/O pins (except port H, which offers only 2). Each pin can individualy be configured as input, output or be connected to one of the other peripherals (alternate function).+
  
 +{{ gpio_complete.svg }}
  
 ===== Features ===== ===== Features =====
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   * Speed selection for each I/O.   * Speed selection for each I/O.
   * Up to 90 MHz toggeling speed.   * Up to 90 MHz toggeling speed.
 +
 +===== GPIO Register Description =====
 +
 +{{:stm32:register_descriptions:gpio_registers_st_rm.pdf|}} 
 +
 +Extract from ST Reference Manual
  
 ===== Functions ===== ===== Functions =====
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   * [[gpio_output|Output mode]] for outputing signals.   * [[gpio_output|Output mode]] for outputing signals.
   * [[gpio_analog|Analog mode]] for [[adc|AD- / DA-conversion]].   * [[gpio_analog|Analog mode]] for [[adc|AD- / DA-conversion]].
-  * [[gpio_alternate|Alternate function mode]] for various peripherals, eg. [[timer2_5|PWM]], [[usart|USART]]. +  * [[gpio_alternate|Alternate function mode]] for various peripherals, eg. [[timer_compare|PWM]], [[usart|USART]].
- +
-===== Registers ===== +
- +
-==== MODER, PUPDR, OTYPER, OSPEEDR ==== +
- +
-\\ {{gpio_reg_common.svg}} \\ \\ +
- +
-=== MODER === +
- +
-|< 100% 10em >| +
-|00|Input (reset state)| +
-|01|Output mode| +
-|10|Alternate function mode| +
-|11|Analog input mode| +
- +
-=== PUPDR === +
- +
-|< 100% 10em >| +
-|00|No pull-up / -down (reset state)| +
-|01|Pull-up| +
-|10|Pull-down| +
- +
-=== OTYPER === +
- +
-> Achtung: Bild falsch! +
- +
-=== OSPEEDR === +
- +
-|< 100% 10em >| +
-|00|Speed: 2 MHz (reset state)| +
-|01|Speed: 10 MHz| +
-|10|Speed: 50 MHz| +
-|11|Speed: 100 MHz| +
- +
-==== AFRL/H ==== +
- +
-\\ {{gpio_reg_afrl.svg}} \\ \\ +
-\\ {{gpio_reg_afrh.svg}} \\ \\ +
- +
-|< 100% 10em >| +
-|0..15|Alternate function 0..15| +
- +
-===== Legend =====+
  
-\\ {{legende.svg}} \\ \\ 
  • stm32/peripherals/gpio.1456384238.txt.gz
  • Last modified: 2016/02/25 07:10
  • by feur