Texas Instruments EK-LM4F232 Скачать руководство пользователя страница 21 | Manualshive

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Texas Instruments EK-LM4F232 Скачать руководство пользователя страница 21

February 22, 2017

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Содержание EK-LM4F232

Страница 1: ...Copyright 2011 2017 Texas Instruments Incorporated SW EK LM4F232 UG 2 1 4 178 USER S GUIDE EK LM4F232 Firmware Development Package...

Страница 2: ...y be claimed as the property of others Please be aware that an important notice concerning availability standard warranty and use in critical applications of Texas Instruments semicon ductor products...

Страница 3: ...uart_echo 12 2 17 uDMA udma_demo 12 2 18 USB Generic Bulk Device usb_dev_bulk 12 2 19 USB HID Keyboard Device usb_dev_keyboard 13 2 20 USB MSC Device usb_dev_msc 13 2 21 USB Serial Device usb_dev_seri...

Страница 4: ...Table of Contents 4 February 22 2017...

Страница 5: ...llaris LM4F232H5QD microcontroller Four 20V analog inputs 3 axis analog accelerometer On board temperature sensor Bright 96 x 64 16 bit color OLED display 5 user buttons User LED Shunt for microcontro...

Страница 6: ...Introduction 6 February 22 2017...

Страница 7: ...abilities of the Cortex M3 microprocessor All of SRAM and all of the peripherals reside within bit band regions meaning that bit banding operations can be applied to any of them In this example a vari...

Страница 8: ...ong as you also rebuild the boot loader itself after modifying its bl_config h file to set APP_START_ADDRESS to the same value The boot_demo1 application can be used along with this application to eas...

Страница 9: ...ations boot loader compatible is simply a matter of relinking them with the new start address and adding a mechanism to transfer control to the boot loader when required The Windows device driver requ...

Страница 10: ...MPU to protect a region of memory from access and to generate a memory management fault when there is an access violation 2 11 Data Logger qs logger This example application is a data logger It can b...

Страница 11: ...ta can be saved When the EK LM4F232 board running qs logger is connected to a host PC via the USB OTG connection for the first time Windows will prompt for a device driver for the board This can be fo...

Страница 12: ...ART connected to the USB debug virtual serial port on the evaluation board will be configured in 115 200 baud 8 n 1 mode All characters received on the UART are transmitted back to the UART 2 17 uDMA...

Страница 13: ...e current Caps Lock state and is updated in response to any other keyboard attached to the same USB host system The device implemented by this application also supports USB remote wakeup allowing it t...

Страница 14: ...keys on the keyboard will cause them to be printed on the screen and to be sent out the UART at 115200 baud with no parity 8 bits and 1 stop bit Any keyboard that supports the USB HID BIOS protocol s...

Страница 15: ...er application already in flash at APP_START_ADDRESS then it will just run the user application It will attempt to load a new application from a USB memory stick under the following conditions no user...

Страница 16: ...Example Applications 16 February 22 2017...

Страница 17: ...s h containing the API declarations for use by applications 3 2 API Functions Functions void ButtonsInit void uint8_t ButtonsPoll uint8_t pui8Delta uint8_t pui8RawState 3 2 1 Function Documentation 3...

Страница 18: ...is not needed that often If button debouncing is not required the the caller can pass a pointer for the pui8RawState parameter in order to get the raw state of the buttons The value returned in pui8R...

Страница 19: ...also provides an API for initializing the display This driver is located in examples boards ek lm4f232 drivers with cfal96x64x16 c containing the source code and cfal96x64x16 h containing the API dec...

Страница 20: ...for the Crystalfontz CFAL9664 F B1 OLED panel with SSD 1332 controller 4 3 Programming Example The following example shows how to initialize the display and prepare to draw on it using the graphics l...

Страница 21: ...February 22 2017 21...

Страница 22: ...r compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or...

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