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stm32/uart: Always show the flow setting when printing a UART object. 

Also change the order of printing of flow so it is after stop (so bits,
parity, stop are one after the other), and reduce code size by using
mp_print_str instead of mp_printf where possible.

See issue #1981.
This commit is contained in:
Damien George 2018-12-04 19:16:16 +11:00
parent da1d849ad1
commit 9262f54138
2 changed files with 16 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
ports/stm32/uart.c
View File

@ -587,20 +587,27 @@ STATIC void pyb_uart_print(const mp_print_t *print, mp_obj_t self_in, mp_print_k
self->uart_id, self->uart.Init.BaudRate, bits);
if (self->uart.Init.Parity == UART_PARITY_NONE) {
mp_print_str(print, "None");
} else if (self->uart.Init.Parity == UART_PARITY_EVEN) {
mp_print_str(print, "0");
} else {
mp_printf(print, "%u", self->uart.Init.Parity == UART_PARITY_EVEN ? 0 : 1);
mp_print_str(print, "1");
}
if (self->uart.Init.HwFlowCtl) {
mp_printf(print, ", flow=");
mp_printf(print, ", stop=%u, flow=",
self->uart.Init.StopBits == UART_STOPBITS_1 ? 1 : 2);
if (self->uart.Init.HwFlowCtl == UART_HWCONTROL_NONE) {
mp_print_str(print, "0");
} else {
if (self->uart.Init.HwFlowCtl & UART_HWCONTROL_RTS) {
mp_printf(print, "RTS%s", self->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS ? "|" : "");
mp_print_str(print, "RTS");
if (self->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
mp_print_str(print, "|");
}
}
if (self->uart.Init.HwFlowCtl & UART_HWCONTROL_CTS) {
mp_printf(print, "CTS");
mp_print_str(print, "CTS");
}
}
mp_printf(print, ", stop=%u, timeout=%u, timeout_char=%u, read_buf_len=%u)",
self->uart.Init.StopBits == UART_STOPBITS_1 ? 1 : 2,
mp_printf(print, ", timeout=%u, timeout_char=%u, read_buf_len=%u)",
self->timeout, self->timeout_char,
self->read_buf_len == 0 ? 0 : self->read_buf_len - 1); // -1 to adjust for usable length of buffer
}

4
tests/pyb/uart.py.exp
View File

@ -12,8 +12,8 @@ UART XB
UART YA
UART YB
ValueError Z
UART(1, baudrate=9600, bits=8, parity=None, stop=1, timeout=1000, timeout_char=3, read_buf_len=64)
UART(1, baudrate=2400, bits=8, parity=None, stop=1, timeout=1000, timeout_char=7, read_buf_len=64)
UART(1, baudrate=9600, bits=8, parity=None, stop=1, flow=0, timeout=1000, timeout_char=3, read_buf_len=64)
UART(1, baudrate=2400, bits=8, parity=None, stop=1, flow=0, timeout=1000, timeout_char=7, read_buf_len=64)
0
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