WB-IMX233-CORE/en: различия между версиями
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Распространяются в соответствии c условиями лицензии [https://creativecommons.org/licenses/by-sa/3.0/us/ CC BY-SA 3.0 US] | Распространяются в соответствии c условиями лицензии [https://creativecommons.org/licenses/by-sa/3.0/us/ CC BY-SA 3.0 US] | ||
https://github.com/contactless/hardware/tree/master/WB-IMX233-CORE | https://github.com/contactless/hardware/tree/master/WB-IMX233-CORE | ||
Версия 12:04, 24 мая 2019
WB-IMX233-CORE is a processor module. Made on the basis of IMX233-OLinuXino-MICRO design with minor changes
- processor Freescale i.MX233 - ARM926J 454Mhz
- 64 MB RAM
- microSD slot
- SPI, I2С, UART, GPIO, JTAG
Differences from IMX233-OLinuXino-MICRO
- revision C3 uses SAMSUNG K4H511638J-LCCC memory. The memory operates in the mode CL=2.5@133Mhz,
that requires modification of The u-boot loader. Modified u-boot: https://github.com/contactless/wirenboard/blob/master/contrib/u-boot/u-boot.sb.cl25
- revision C3-H uses Hynix memory, the settings are above
- revision C3-A uses Alliance memory, u-boot: https://github.com/contactless/wirenboard/blob/master/contrib/u-boot/u-boot.sb.new.cl25.pwr1
Outputs description
See also IMX233-OLinuXino-MICRO.
Pins used by the bootloader
The following pins must have a specific state at boot time:
| Name | position | GPIO | state | pull-up/pull-down |
| LCD_D03 | 6@CON1 | 35 | high | 3k3 up |
| LCD_D02 | 5@CON1 | 34 | low | 22k down |
| LCD_D01 | 4@CON1 | 33 | low | 22k down |
| LCD_D00 | 3@CON1 | 32 | high | 3k3 up |
| LCD_RS | 27@CON1 | 51 | high | 47k up |
Source files
Распространяются в соответствии c условиями лицензии CC BY-SA 3.0 US
https://github.com/contactless/hardware/tree/master/WB-IMX233-CORE