[RISC-V MCU CH32V103 Review] Driving OLED

hzz592788

[RISC-V MCU CH32V103 Review] Driving OLED [Copy link]

 

I originally wanted to use the hardware IIC driver, but the program compiled correctly and my logic was correct. The problem was that I didn't know where the problem was.

So let's just install the IIC software safely and securely first.

This time I used a 0.96-inch OLED with an IIC interface. I just transplanted the code first to facilitate later use. I will draw an expansion board later.

The wiring is as follows:

// ----------------------------------------------------------------
// GND power ground
// VCC connects to 5V or 3.3v power supply
// SCL connects to PB5 (SCL)
// SDA connects to PB6 (SDA)
// ----------------------------------------------------------------

Just put the code and OLED datasheet in the attachment

中景园电子0.96寸OLED使用文档新手必看V2.0.pdf (1.61 MB, downloads: 4)

2021-2-6 16:11 上传

点击文件名下载附件
oled说明书

GPIO_oled.rar (391.41 KB, downloads: 11)

2021-2-6 16:03 上传

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程序

okhxyyo

Is the result not as expected? I don't know what kind of error the OP is talking about.

hzz592788

okhxyyo posted on 2021-2-6 21:24 Is the result not as expected? I don't know what kind of error the OP is talking about

I checked the timing on an oscilloscope, but it doesn't work. I'll check it again, I think it's the response part. Software IIC is better.

okhxyyo

hzz592788 posted on 2021-2-6 22:28 When I look at it on the oscilloscope, the timing sequence looks fine, but it just doesn't work. I'll take a look at it again, I guess it's the response part. Software IIC is still easier to use

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