45 lines
829 B
C
45 lines
829 B
C
/*
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* lcdio.c
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*
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* Created on: Aug 5, 2023
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* Author: leo
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*/
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#include <stdint.h>
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#define FSMC_NOR_PSRAM_REGION1 ((void*)0x60000000)
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#define FSMC_NOR_PSRAM_REG ((void*)0x60020000)
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static volatile uint16_t *LCD_REG = (uint16_t*)FSMC_NOR_PSRAM_REGION1;
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static volatile uint16_t *LCD_RAM = (uint16_t*)FSMC_NOR_PSRAM_REG;
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uint16_t LCD_IO_ReadData(uint16_t RegValue){
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*LCD_REG = RegValue;
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return *LCD_RAM;
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}
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uint32_t LCD_IO_ReadData_m(uint16_t RegValue, uint8_t ReadSize) {
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volatile uint32_t data;
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*LCD_REG = RegValue;
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data = *LCD_RAM;
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while (--ReadSize) {
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data <<= 8;
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data |= (*LCD_RAM & 0xFF);
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}
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return data;
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}
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void LCD_IO_WriteReg(uint16_t Reg) {
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*LCD_REG = Reg;
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}
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void LCD_IO_WriteData(uint16_t RegValue) {
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*LCD_RAM = RegValue;
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}
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uint16_t* LCD_IO_getDataPt(void){
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return LCD_RAM;
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}
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