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DSP2812控制SIM900A发彩信问题



感觉AT指令没有写错啊,不知道为什么,串口助手永远只显示一部分,剩下的步骤就是不显示

程序卡的位置总在黄色箭头这里

求懂得朋友帮忙指导下,不胜感激!