CH56x_bus8.c

/********************************** (C) COPYRIGHT *******************************
* File Name          : CH56x_bus8.c
* Author             : WCH, bvernoux
* Version            : V1.0.1
* Date               : 2022/08/13
* Description
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Copyright (c) 2022 Benjamin VERNOUX
* SPDX-License-Identifier: Apache-2.0
*******************************************************************************/
#include "CH56x_common.h"

/*******************************************************************************
 * @fn     BUS8_GPIO_Init
 *
 * @brief  BUS8 GPIO Init
 *
 * @return None
 */
void BUS8_GPIO_Init(void)
{
	R32_PA_DIR = 0;
	R32_PA_PU  = 0xff;
	R32_PA_SMT = 0xffffffff;
	R32_PA_DIR |= bBUSRD | bBUSWR; //R/W signal GPIO
	R32_PB_DIR |= 0x7fff;
	R32_PB_SMT |= 0x7fff;

}

/*******************************************************************************
 * @fn     BUS8_Init
 *
 * @brief  BUS8 Init
 *
 * @param  addroe:0x00-none;0x04-[5:0];0x08-[9:0];0x0c-[14:0];
 *         width: 0x00-3;0x10-5;0x20-9;0x30-16;
 *         hold:  0x00-2;0x40-3;
 *         setup: 0x00-2;0x80-3;
 *
 * @return None
 */
void BUS8_Init(uint8_t addroe, uint8_t width, uint8_t hold, uint8_t setup)
{
	R8_XBUS_CONFIG =  addroe | width | hold | setup;
	R8_XBUS_CONFIG |= RB_XBUS_ENABLE; //Enable
	BUS8_GPIO_Init();
}