Difference between revisions of "Nucleo-L432KC"
| Line 43: | Line 43: | ||
NOTE: when you regenerate the code, it rollbacks to 1000. So you need to change it another time. | NOTE: when you regenerate the code, it rollbacks to 1000. So you need to change it another time. | ||
| + | |||
| + | Then, enable the USART1 from Connectivity -> USART1. Mode Asynchronous and Hardware Flow Control (RS232) Disable. No Hardware Flow Control (RS485). This will take up pins PA9 - D1 and PA10 - P0, and they won't be usable for any other purposes. | ||
Revision as of 20:33, 20 April 2020
Pins
L432KC doesn't have any Ethernet or WiFi connection. Only serial.
Hardware PWM Pins:
PA0 - A0 (Tim2Ch1) PA1 - A1 (Tim2Ch2) PA2 - A7 (Tim2Ch3) PA3 - A2 (Tim15Ch2) PA11 - D10 (Tim1Ch4)
Software pins (they work pretty good, at least at 200Hz)
PA4 - A3 PA5 - A4 PA6 - A5 PA7 - A6 PA8 - D9 PA12 - D2 PB0 - D3 PB1 - D6 PB5 - D11 PB6 - D5 PB7 - D4
Not sure:
PB3 - D13 PB4 - D12
All the hardware PWM pins could be used as software ones (but, in my opinion, it makes no sense).
PA9 - D1 and PA10 - D0 should be reserved for serial communication.
Simple PWM project
In order to speed up the PWM software Pins, you need to hack the speed of the Clock.
Go in "Clock Configuration", and set "MSI RC" to 48000 (the maximum).
Then, generate the code, and go to FreeRTOSconfig.h file. Change the configTICK_RATE_HZ variable to ((TickType_t)20000) .
NOTE: when you regenerate the code, it rollbacks to 1000. So you need to change it another time.
Then, enable the USART1 from Connectivity -> USART1. Mode Asynchronous and Hardware Flow Control (RS232) Disable. No Hardware Flow Control (RS485). This will take up pins PA9 - D1 and PA10 - P0, and they won't be usable for any other purposes.
