psram是什么意思,psram不足怎么解决

向PSRAM中写入16位数据向PSRAM中低地址处写入8位数据向PSRAM中高地址处写入8位数据从PSRAM中读取8位数据

向PSRAM中写入16位数据 int main(void){uint16 *point16;uint16 data16 = 0x00;point16 = (uint16 *)0x80001020;while(1){*point16=data16++;}return(0);} 向PSRAM中低地址处写入8位数据 int main(void){uint8 *point8;uint8 data8 = 0x00;point8 = (uint8 *)0x80001010;while(1){*point8=data8++;}return(0);} 向PSRAM中高地址处写入8位数据 int main(void){ uint8 *point8; uint8 data8=0x00; point8 = (uint8 *)0x80001011; while(1){ *point8 = data8++; } return(0);} 从PSRAM中读取8位数据 uint8 RcvData8;int main(void){uint8 = *point8;point8 = (uint8 * )0x80001010;while(1){RecData8 = *point8++;RecData8 = *point8++;RecData8 = *point8++;RecData8 = *point8--;point8--;point8--}return(0);}