src/runtime/runtime_stm32l4x2.go


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

//go:build stm32 && stm32l4x2
// +build stm32,stm32l4x2

package runtime

import (
	"device/stm32"
)

/*
   clock settings
   +-------------+-----------+
   | LSE         | 32.768khz |
   | SYSCLK      | 80mhz     |
   | HCLK        | 80mhz     |
   | APB1(PCLK1) | 80mhz     |
   | APB2(PCLK2) | 80mhz     |
   +-------------+-----------+
*/
const (
	HSE_STARTUP_TIMEOUT = 0x0500
	PLL_M               = 1
	PLL_N               = 40
	PLL_P               = RCC_PLLP_DIV7
	PLL_Q               = RCC_PLLQ_DIV2
	PLL_R               = RCC_PLLR_DIV2

	MSIRANGE = stm32.RCC_CR_MSIRANGE_Range4M
)