u8g2 使用8080，总出现thread: stack overflow

发布于 2020-06-04 15:58:03 浏览：1762 订阅该版

从例子st7920_12864_8080_example.cpp改过来的。运行msh:u8g2_st7920_12864_8080_example不出错，运行u8g2_ra8835_320240_6800_example出现stack overflow，请教为什么？
绿色背景是修改过的。发现管脚改不改都不影响。
使用的是8080，原来使用6800宏定义，没有改过来

#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#include <U8g2lib.h>

// You may reference Drivers/drv_gpio.c for pinout
// In u8x8.h #define U8X8_USE_PINS

#define RA8835_6800_PIN_D0                    77  // PB15
#define RA8835_6800_PIN_D1                    78  // PB14
#define RA8835_6800_PIN_D2                    79  // PB13
#define RA8835_6800_PIN_D3                    80  // PB12
#define RA8835_6800_PIN_D4                    81  // PC6
#define RA8835_6800_PIN_D5                    82  // PC7
#define RA8835_6800_PIN_D6                    85  // PC8
#define RA8835_6800_PIN_D7                    86  // PC9
#define RA8835_6800_PIN_EN                    90//WR//100  // PA15	//RD
#define RA8835_6800_PIN_CS                    91//U8X8_PIN_NONE	//CS1	
#define RA8835_6800_PIN_DC                    92	//101  // PA11	A
#define RA8835_6800_PIN_RST                   88  // PA12	//RES

// Check [https://github.com/olikraus/u8g2/wiki/u8g2setupcpp](https://github.com/olikraus/u8g2/wiki/u8g2setupcpp) for all supported devices
static U8G2_RA8835_320X240_F_8080 u8g2(U8G2_R0, 
                                      RA8835_6800_PIN_D0, 
                                      RA8835_6800_PIN_D1, 
                                      RA8835_6800_PIN_D2, 
                                      RA8835_6800_PIN_D3, 
                                      RA8835_6800_PIN_D4, 
                                      RA8835_6800_PIN_D5, 
                                      RA8835_6800_PIN_D6, 
                                      RA8835_6800_PIN_D7, 
                                      /*enable=*/ RA8835_6800_PIN_EN, 
                                      /*cs=*/ RA8835_6800_PIN_CS, 
                                      /*dc=*/ RA8835_6800_PIN_DC, 
                                      /*reset=*/ RA8835_6800_PIN_RST);

static void u8g2_ra8835_320240_6800_example(int argc,char *argv[])
{
    u8g2.begin();
    u8g2.clearBuffer();                         // clear the internal memory
    u8g2.setFont(u8g2_font_6x13_tr);            // choose a suitable font
不相干的字体注释掉了
    u8g2.drawStr(1, 18, "U8g2 on RT-Thread");   // write something to the internal memory
    u8g2.sendBuffer();                          // transfer internal memory to the display
    u8g2.setFont(u8g2_font_unifont_t_symbols);
    u8g2.drawGlyph(112, 56, 0x2603 );
    u8g2.sendBuffer();
}
MSH_CMD_EXPORT(u8g2_ra8835_320240_6800_example, ra8835 320240 LCD sample);