55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/**
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* @file main.c
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* @brief
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*
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* Copyright (c) 2021 Bouffalolab team
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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*/
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#include "hal_uart.h"
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#include "hal_keyscan.h"
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int main(void)
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{
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bflb_platform_init(0);
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keyscan_register(KEYSCAN_INDEX, "4x4_keyscan");
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struct device *keyscan = device_find("4x4_keyscan");
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if (keyscan) {
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KEYSCAN_DEV(keyscan)->col_num = COL_NUM_4;
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KEYSCAN_DEV(keyscan)->row_num = ROW_NUM_4;
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device_open(keyscan, 0); //current keyscan clock source:one is 32M/(31+1)/8 = 125Khz and another is 1MHZ
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device_control(keyscan, DEVICE_CTRL_RESUME, NULL);
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MSG("keyscan found\n");
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}
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BL_CASE_SUCCESS;
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uint32_t key_code;
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while (1) {
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/*get it status*/
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while (device_control(keyscan, DEVICE_CTRL_GET_INT, NULL) == 0) {
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}
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device_control(keyscan, DEVICE_CTRL_KEYSCAN_GET_KEYCODE, &key_code);
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MSG("Keycode0 value: %d\r\n", key_code & 0xff);
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MSG("Keycode1 value: %d\r\n", (key_code & 0xff00) >> 8);
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MSG("Keycode2 value: %d\n", (key_code & 0xff0000) >> 16);
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MSG("Keycode3 value: %d\r\n", (key_code & 0xff000000) >> 24);
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bflb_platform_delay_ms(100);
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}
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}
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