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doc: Add important note on I2C addresses

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Wladimir J. van der Laan 2019-08-18 11:32:53 +00:00
parent 213ca1d50e
commit 2840ec0cf9
1 changed files with 4 additions and 2 deletions
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doc/onboard.md
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@ -28,7 +28,7 @@ Maix Go
### On-board ### On-board
- MSA300 - Accelerometer (I2C, address 0x26) - MSA300 - Accelerometer (I2C, address 0x26\*)
- STM32F103C8 - JTAG & UART, debug M1 without extra Jlink, this bypasses the CH340C on the module (USB to host, serial to K210) - STM32F103C8 - JTAG & UART, debug M1 without extra Jlink, this bypasses the CH340C on the module (USB to host, serial to K210)
- OV2640 - Color CMOS UXGA (2.0 MegaPixel) CAMERA C HI (DVP, SCCB address 0x60) - OV2640 - Color CMOS UXGA (2.0 MegaPixel) CAMERA C HI (DVP, SCCB address 0x60)
@ -37,6 +37,8 @@ Maix Go
(source: schematic) (source: schematic)
- ST7789V - 240x320 262K Color Single-Chip TFT Controller/Driver with Frame Memory (SPI) - ST7789V - 240x320 262K Color Single-Chip TFT Controller/Driver with Frame Memory (SPI)
- NS2009 - 4-Wire Touch Screen Controller (I2C, address 0x48) - NS2009 - 4-Wire Touch Screen Controller (I2C, address 0x48\*)
- TF card slot (SPI) - TF card slot (SPI)
\* Note regarding I2C addresses: the I2C peripheral automatically adds a LSB for read/write to the address,
so 0x26 is and 0x4c and 0x4d, and 0x48 is 0x90 and 0x91.