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78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
#include "wm_touch.h"
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// 在使用TOUCH功能时，TOUCH0（PA7）必须复用为TOUCH功能，不可以作为其他功能！！！
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HAL_StatusTypeDef HAL_TOUCH_Init(TOUCH_HandleTypeDef *htouch)
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{
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int i;
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if (htouch == NULL)
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{
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return HAL_ERROR;
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}
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assert_param(IS_TOUCH_INSTANCE(htouch->Instance));
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assert_param(IS_TOUCH_CHANNELS(htouch->Init.Channel));
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assert_param(IS_TOUCH_WINDOW(htouch->Init.Window));
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assert_param(IS_TOUCH_SCANPERIOD(htouch->Init.ScanPeriod));
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HAL_TOUCH_MspInit(htouch);
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WRITE_REG(htouch->Instance->CR, 0);
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WRITE_REG(htouch->Instance->IE_IF, 0x0000FFFF);
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for (i = 0; i < 16; i++)
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{
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if (htouch->Init.Channel & (1 << i))
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{
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assert_param(IS_TOUCH_THRESHOLD(htouch->Init.Threshold[i]));
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MODIFY_REG(*((&(htouch->Instance->CH0CR)) + i), TOUCH_CH0CR_THRESHOLD, htouch->Init.Threshold[i]);
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if (htouch->Init.Irq_en & (1 << i))
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{
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SET_BIT(htouch->Instance->IE_IF, (1 << (16 + i)));
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}
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}
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}
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WRITE_REG(htouch->Instance->CR, ((htouch->Init.Channel << TOUCH_CR_CH_SEL_Pos) |
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(htouch->Init.ScanPeriod << TOUCH_CR_SCAN_PERIOD_Pos) |
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(htouch->Init.Window << TOUCH_CR_CAPDET_CNT_Pos) |
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TOUCH_CR_EN));
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return HAL_OK;
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}
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HAL_StatusTypeDef HAL_TOUCH_DeInit(TOUCH_HandleTypeDef *htouch)
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{
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if (htouch == NULL)
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{
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return HAL_ERROR;
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}
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CLEAR_BIT(htouch->Instance->CR, TOUCH_CR_EN);
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HAL_TOUCH_MspDeInit(htouch);
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return HAL_OK;
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}
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__attribute__((weak)) void HAL_TOUCH_MspInit(TOUCH_HandleTypeDef *htouch)
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{
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UNUSED(htouch);
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}
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__attribute__((weak)) void HAL_TOUCH_MspDeInit(TOUCH_HandleTypeDef *htouch)
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{
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UNUSED(htouch);
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}
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__attribute__((weak)) void HAL_TOUCH_Callback(TOUCH_HandleTypeDef *htouch, uint16_t Flag)
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{
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UNUSED(htouch);
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}
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void HAL_TOUCH_IRQHandler(TOUCH_HandleTypeDef *htouch)
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{
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uint32_t flag = __HAL_TOUCH_GET_FLAG(htouch);
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if (flag != RESET)
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{
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__HAL_TOUCH_CLEAR_IT(htouch, flag);
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HAL_TOUCH_Callback(htouch, flag & TOUCH_IE_IF_FLAG);
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}
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}
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