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serial_putc() can cause rx bytes to be dropped #57

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Sep 9, 2013
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Original file line number Diff line number Diff line change
Expand Up @@ -249,12 +249,6 @@ int serial_getc(serial_t *obj) {
void serial_putc(serial_t *obj, int c) {
while (!serial_writable(obj));
obj->uart->THR = c;

#warning TODO(@toyowata): need to fix a full-duplex bug? https://mbed.org/forum/bugs-suggestions/topic/4473/
uint32_t lsr = obj->uart->LSR;
lsr = lsr;
uint32_t thr = obj->uart->THR;
thr = thr;
}

int serial_readable(serial_t *obj) {
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Original file line number Diff line number Diff line change
Expand Up @@ -247,11 +247,6 @@ int serial_getc(serial_t *obj) {
void serial_putc(serial_t *obj, int c) {
while (!serial_writable(obj));
obj->uart->THR = c;

uint32_t lsr = obj->uart->LSR;
lsr = lsr;
uint32_t thr = obj->uart->THR;
thr = thr;
}

int serial_readable(serial_t *obj) {
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Original file line number Diff line number Diff line change
Expand Up @@ -247,11 +247,6 @@ int serial_getc(serial_t *obj) {
void serial_putc(serial_t *obj, int c) {
while (!serial_writable(obj));
obj->uart->THR = c;

uint32_t lsr = obj->uart->LSR;
lsr = lsr;
uint32_t thr = obj->uart->THR;
thr = thr;
}

int serial_readable(serial_t *obj) {
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Original file line number Diff line number Diff line change
Expand Up @@ -283,11 +283,6 @@ int serial_getc(serial_t *obj) {
void serial_putc(serial_t *obj, int c) {
while (!serial_writable(obj));
obj->uart->THR = c;

uint32_t lsr = obj->uart->LSR;
lsr = lsr;
uint32_t thr = obj->uart->THR;
thr = thr;
}

int serial_readable(serial_t *obj) {
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Original file line number Diff line number Diff line change
Expand Up @@ -283,11 +283,6 @@ int serial_getc(serial_t *obj) {
void serial_putc(serial_t *obj, int c) {
while (!serial_writable(obj));
obj->uart->THR = c;

uint32_t lsr = obj->uart->LSR;
lsr = lsr;
uint32_t thr = obj->uart->THR;
thr = thr;
}

int serial_readable(serial_t *obj) {
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Original file line number Diff line number Diff line change
Expand Up @@ -276,11 +276,6 @@ int serial_getc(serial_t *obj) {
void serial_putc(serial_t *obj, int c) {
while (!serial_writable(obj));
obj->uart->THR = c;

uint32_t lsr = obj->uart->LSR;
lsr = lsr;
uint32_t thr = obj->uart->THR;
thr = thr;
}

int serial_readable(serial_t *obj) {
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -257,11 +257,6 @@ int serial_getc(serial_t *obj) {
void serial_putc(serial_t *obj, int c) {
while (!serial_writable(obj));
obj->uart->THR = c;

uint32_t lsr = obj->uart->LSR;
lsr = lsr;
uint32_t thr = obj->uart->THR;
thr = thr;
}

int serial_readable(serial_t *obj) {
Expand Down