Ebyte E78-400M22S User Manual

Contents

Chengdu Ebyte Electronic Technology Co.,Ltd E78-400M22S user manualCopyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd 510 GND Ground wire, connected to the power reference ground11 ANT Antenna interface, stamp hole (50 ohm characteristic impedance)12 GND Ground wire, connected to the power reference ground13 GND Ground wire, connected to the power reference ground14 GND Ground wire, connected to the power reference ground15 GND Ground wire, connected to the power reference ground16 XRES Input External reset pins17 ADC_IN Input ADC input pin18 AUX Input/output MCU GPIO19 SETA Input/output MCU GPIO20 UART_RX Input/output UART RX pin21 UART_TX Input/output UART TX pin22 SWD_DATA Input/output SWD Data pins23 SWD_CLK Input/output SWD Clock pin24 GND Ground wire, connected to the power reference ground25 SPI_MISO Input/output SPI MISO test point, internally connected, cannot be used as external SPI26 SPI_NSS Input/output SPI NSS test point, internally connected, cannot be used as an external SPI27 SPI_MOSI Input/output SPI MOSI test point, internally connected, cannot be used as an external SPI28 SPI_SCK Input/output SPI SCK test point, internally connected, cannot be used as external SPI4.DevelopmentNo. Key word Remark1 Burn theconnectionModule is SoC module, with GPIO port, program download using ASR official test board;2 Burn theconnectionConnect XRES, SWD_CLK, SWD_DATA, GND, 3V3 of the test board on the official website withXRES, SCLK, SDAT, GND and 3V3 of the downloader respectively, and ensure that both green lightsare on before downloading. If there is any exception, please press this button to ensure that both greenlights are on. (for details, please refer to the official ASR6501 burning instructions)