CloudEdge/bl_mcu_sdk
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bl_mcu_sdk/examples/pwm/pwm_dc_motor
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jzlv a556eac860 [fix][examples/pwm] modify clock source in readme
2021-07-06 16:24:27 +08:00
..
cdk [chore] update cdk project settings 2021-07-01 14:23:45 +08:00
CMakeLists.txt [refactor][examples] add case success message 2021-07-01 19:31:37 +08:00
main.c [refactor][examples] add case success message 2021-07-01 19:31:37 +08:00
readme.md [fix][examples/pwm] modify clock source in readme 2021-07-06 16:24:27 +08:00

readme.md

board/bl706_iot/pinmux_config.h 中 CONFIG_GPIO20_FUNC、CONFIG_GPIO21_FUNC 选择 GPIO_FUN_PWM

board/bl706_iot/clock_config.h 中

  • BSP_PWM_CLOCK_SOURCE 选择 ROOT_CLOCK_SOURCE_32K_CLK,也可选择其他时钟源，用其他时钟源时应注意 case 中的设置要匹配
  • BSP_PWM_CLOCK_DIV 设置成 1

将两个通道分别接到 H 桥或半桥的两个通道


$ make APP=pwm_dc_motor BOARD=bl706_iot

正常运行后，GPIO20 和 GPIO21 引脚分别先后输出 PWM 波