48 lines
1.4 KiB
C
Executable file
48 lines
1.4 KiB
C
Executable file
#include "ZLG7290.h"
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#define wAddr (uint16_t)0x70U //ZLG7290写器件地址
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#define rAddr (uint16_t)0x71U //ZLG7290读器件地址
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#define DpramAddr (uint16_t)0x10 //ZLG7290显示缓冲区起始子地址
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#define KeyAddr (uint16_t)0x01 //ZLG7290键值寄存器子地址
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static const uint8_t keyval[] = {0x03, 0x1c, 0x1b, 0x1a, 0x14, 0x13, 0x12, 0x0c, 0x0b, 0x0a, 0x19, 0x11, 0x09, 0x01, 0x02};
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static const uint8_t SegCode[] = {0xfc, 0x0c, 0xda, 0xf2, 0x66, 0xb6, 0xbe, 0xe0, 0xfe, 0xe6, 0xee, 0x3e, 0x9c, 0x7a, 0x00}; //定义字段码表
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extern I2C_HandleTypeDef hi2c1;
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uint8_t ZLG7290_Read(void)
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{
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uint8_t i;
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uint8_t buf[1];
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while(HAL_I2C_Mem_Read (&hi2c1, rAddr, KeyAddr, 1, buf, 1, 0x10) != HAL_OK );
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for(i = 0; i < 15; i++)
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{
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if(buf[0] == keyval[i]) break;
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}
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return i;
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}
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void ZLG7290_Write1Byte(uint16_t r, uint8_t *p) //写一位字段码
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{
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while(HAL_I2C_Mem_Write (&hi2c1, wAddr, r, 1, p, 1, 0x10) != HAL_OK);
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}
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void ZLG7290_Write(uint8_t *buf) //写8位字段码
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{
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uint8_t DBuff[8];
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uint8_t i;
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uint16_t p = DpramAddr;
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uint8_t *p1;
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for(i = 0; i < 8; i++)
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{
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DBuff[i] = SegCode[buf[i]]; //求各字符的字段码
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}
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p1 = &DBuff[0]; //p1指向待显示字符的字段码
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for(i = 0; i < 8; i++)
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{
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ZLG7290_Write1Byte(p++, p1++); //调用一次，写一位字段码
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HAL_Delay(5);
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}
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}
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