捷波
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准确的说,这个应该称为工具链, SDCC可以了解下。SDCC is a retargettable optimizing standard C (ANSI C89 / ISO C90 ISO C99 ISO C11 / C17) compiler that targets a growing list of processors including the Intel 8051 Maxim 80DS390 Zilog Z80 Z180 eZ80 (in Z80 mode) Rabbit 2000 GameBoy Motorola 68HC08 S08 STMicroelectronics STM8 and Padauk PDK14 and PDK15 targets. There also is incomplete support for the Microchip PIC16 and PIC18 and the Padauk PDK13.
可以肯定是温度过高引起的,液晶显示屏都有一定的温度使用范围,一般商用屏工作温度-20℃~70℃,工业屏-30℃~80℃,军工-40℃~85℃.
批量出现问题的话,那估计是什么物料配错了吧,首先可能是I2C总线的上拉电阻出现问题,另外查下总线的供电及总线上的器件供电是否正常。