61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
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#include "asm/includes.h"
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#include "system/includes.h"
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#include "app_config.h"
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#include "chargebox.h"
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#if TCFG_HANDSHAKE_ENABLE
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#define HS_TIMER JL_TIMER2
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static u16 delay_tap[HS_DELAY_16US + 1] = {
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19, 39, 52, 141, 158, 309, 355,//timer clk = 24M, sys clk = 48m
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};
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/*------------------------------------------------------------------------------------*/
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/**@brief lighting握手延时
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@param 无
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@return 无
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@note 提供不同的ms级延时
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*/
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/*------------------------------------------------------------------------------------*/
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void handshake_timer_delay_ms(u8 ms)
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{
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HS_TIMER->CNT = 0;
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#if (TCFG_CLOCK_SYS_SRC == SYS_CLOCK_INPUT_PLL_RCL)
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HS_TIMER->PRD = ms * (clk_get("lsb") / (2 * 1000));
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HS_TIMER->CON = BIT(0) | BIT(6) | BIT(14); //系统时钟,lsb, div 2
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#else
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HS_TIMER->PRD = ms * (clk_get("timer") / 1000);
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HS_TIMER->CON = BIT(0) | BIT(2) | BIT(14); //1分频,osc时钟,24m，24次就1us
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#endif
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while (!(HS_TIMER->CON & BIT(15))); //等pending
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HS_TIMER->CON = 0;
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}
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/*------------------------------------------------------------------------------------*/
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/**@brief lighting握手延时
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@param 无
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@return 无
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@note 提供不同的us级延时
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*/
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/*------------------------------------------------------------------------------------*/
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SEC(.chargebox_code)
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void handshake_timer_delay_us(u8 us)
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{
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//delay 值要根据不同的频率去调整，小于48m的要先设置48m，方便延时
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HS_TIMER->CNT = 0;
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#if (TCFG_CLOCK_SYS_SRC == SYS_CLOCK_INPUT_PLL_RCL)
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HS_TIMER->PRD = delay_tap[us];//这里不允许做乘除法
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HS_TIMER->CON = BIT(0) | BIT(6) | BIT(14); //系统时钟,lsb, div 2, 必须为24M
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#else
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HS_TIMER->PRD = delay_tap[us];
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HS_TIMER->CON = BIT(0) | BIT(2) | BIT(14); //1分频,osc时钟,24m，24次就1us
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#endif
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while (!(HS_TIMER->CON & BIT(15))); //等pending
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HS_TIMER->CON = 0;
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}
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#endif
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