T113 19200波特率通讯不上，187500和9600的可以

[laizh950]

如题，这个波特率是在哪里作出了限制吗？应该怎么修改？

[laizh950]

串口信息如下：

# cat /sys/devices/platform/soc@3000000/2500000.uart/ctrl_info
 ier  : 0x00
 lcr  : 0x00
 mcr  : 0x00
 fcr  : 0x00
 dll  : 0x4e
 dlh  : 0x00
 last baud : 19230 (dl = 78)

TxRx Statistics:
 tx     : 4443
 rx     : 3874
 parity : 87
 frame  : 52
 overrun: 0
 throttled: 0
# cat /sys/devices/platform/soc@3000000/2500000.uart/dev_info
id     = 0
name   = uart0
irq    = 33
io_num = 2
port->mapbase = 0x02500000
port->membase = 0x2067c9f1
port->iobase  = 0x00000000
port->fifosize = 64
pdata->regulator    = 0x1d5654ac
pdata->regulator_id = vcc-rs485
#
#
# cat /sys/devices/platform/soc@3000000/2500000.uart/ctrl_info
 ier  : 0x05
 lcr  : 0x1b
 mcr  : 0x03
 fcr  : 0xb1
 dll  : 0x08
 dlh  : 0x00
 last baud : 187500 (dl = 8)

TxRx Statistics:
 tx     : 20313
 rx     : 15366
 parity : 225
 frame  : 123
 overrun: 0
 throttled: 0
#