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stm32-h103: use proper HSE for USB

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HSI is out of spec for reliable USB operation, even though it sometimes
works.  stm32-h103 board has an 8Mhz external crystal which should
therefore be used for any USB work.

Originally reported as https://github.com/libopencm3/libopencm3-examples/pull/192
This commit is contained in:
Karl Palsson
2019-04-21 21:50:42 +00:00
parent f9713ff865
commit 90262eb880
3 changed files with 3 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
examples/stm32/f1/stm32-h103/usb_cdcacm/cdcacm.c
View File

@@ -238,7 +238,7 @@ int main(void)
usbd_device *usbd_dev; usbd_device *usbd_dev;
rcc_clock_setup_in_hsi_out_48mhz(); rcc_clock_setup_in_hse_8mhz_out_72mhz();
rcc_periph_clock_enable(RCC_GPIOC); rcc_periph_clock_enable(RCC_GPIOC);

2
examples/stm32/f1/stm32-h103/usb_dfu/usbdfu.c
View File

@@ -258,7 +258,7 @@ int main(void)
} }
} }
rcc_clock_setup_in_hsi_out_48mhz(); rcc_clock_setup_in_hse_8mhz_out_72mhz();
rcc_periph_clock_enable(RCC_GPIOC); rcc_periph_clock_enable(RCC_GPIOC);

2
examples/stm32/f1/stm32-h103/usb_iap/usbiap.c
View File

@@ -259,7 +259,7 @@ int main(void)
} }
} }
rcc_clock_setup_in_hsi_out_48mhz(); rcc_clock_setup_in_hse_8mhz_out_72mhz();
rcc_periph_clock_enable(RCC_GPIOA); rcc_periph_clock_enable(RCC_GPIOA);
rcc_periph_clock_enable(RCC_AFIO); rcc_periph_clock_enable(RCC_AFIO);