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| author | Toshifumi NISHINAGA <tnishinaga.dev@gmail.com> | 2016-07-07 16:02:26 (GMT) |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-07-14 22:22:44 (GMT) |
| commit | 4b2fd720a7b2f78c42d1565edf4c67f378c65440 (patch) | |
| tree | 97c496a53008f138475a3991ac4c0ed3920ce26e /arch/arm/mach-stm32 | |
| parent | 25c1b1353ce4b8188de6058f9f3b0d5d2dad8230 (diff) | |
| download | u-boot-4b2fd720a7b2f78c42d1565edf4c67f378c65440.tar.xz | |
stm32: Change USART port to USART6 for stm32f746 discovery board
This change is to remove a halt at about 200KiB
while sending a large(1MiB) binary to a micro controller using USART1.
USART1 is connected to a PC via an on-board ST-Link debugger
that also functions as a USB-Serial converter.
However, it seems to loss some data occasionally.
So I changed the serial port to USART6 and connected it to the PC using
an FTDI USB-Serial cable, therefore the transmission was successfully
completed.
Signed-off-by: Toshifumi NISHINAGA <tnishinaga.dev@gmail.com>
Diffstat (limited to 'arch/arm/mach-stm32')
| -rw-r--r-- | arch/arm/mach-stm32/stm32f7/clock.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32/stm32f7/clock.c b/arch/arm/mach-stm32/stm32f7/clock.c index 78d22d4..ac47850 100644 --- a/arch/arm/mach-stm32/stm32f7/clock.c +++ b/arch/arm/mach-stm32/stm32f7/clock.c @@ -245,6 +245,9 @@ void clock_setup(int peripheral) case USART1_CLOCK_CFG: setbits_le32(RCC_BASE + RCC_APB2ENR, RCC_ENR_USART1EN); break; + case USART6_CLOCK_CFG: + setbits_le32(RCC_BASE + RCC_APB2ENR, RCC_ENR_USART6EN); + break; case GPIO_A_CLOCK_CFG: setbits_le32(RCC_BASE + RCC_AHB1ENR, RCC_ENR_GPIO_A_EN); break; |