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uart: BW improvements (#4620)

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* uart fixes and BW improvements

* uart: read_char straightly use hw buffer

* +attributes for functions called by ISR

* uart: BW improvements
read_char straightly use hw buffer (+ ~10%bw)
read by block (+ ~190%bw) (instead of generic Stream::readBytes)
attributes for functions called by ISR
remove overrun message
remove some ISR flags which were not honoured

* fix merge

* fix buffer overflow

* serial stress test sketch

* astyle

* serial stress example: interactive keyboard, stop reading, overrun

* serial device test: bandwidth & overrun

* update + HardwareSerial::hasError()

* interactive overrun in example

* astyle

* Test using @plerup's SoftwareSerial as submodule (tag 3.4.1)

* update upstream ref (fix warning)

* host mock uart/read(buf,size)

* reset style changes in submodules before style diff

* update build_boards_manager_package.sh for submodules

* trigger CI (removing space)

* cannot reproduce locally the CI issue, setting bash -x option to get live trace

* remove previously added (in this PR) 'set -e' in package builder (passes local tests, not real CI)
script-comment new recipe.hooks.core.prebuild.3 (along with already commented .1 and .2)
moved CI package test to be first on the test list
remove 'set -x', wish me luck
This commit is contained in:
david gauchard
2018-12-10 14:35:11 +01:00
committed by Develo
parent 8a8848829c
commit 4c8d8f1e8a
11 changed files with 545 additions and 44 deletions
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21
cores/esp8266/HardwareSerial.h
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@ -88,6 +88,10 @@ public:
void end();
size_t setRxBufferSize(size_t size);
size_t getRxBufferSize()
{
return uart_get_rx_buffer_size(_uart);
}
void swap()
{
@ -120,14 +124,22 @@ public:
int peek(void) override
{
// this may return -1, but that's okay
// return -1 when data is unvailable (arduino api)
return uart_peek_char(_uart);
}
int read(void) override
{
// this may return -1, but that's okay
// return -1 when data is unvailable (arduino api)
return uart_read_char(_uart);
}
size_t readBytes(char* buffer, size_t size) override
{
return uart_read(_uart, buffer, size);
}
size_t readBytes(uint8_t* buffer, size_t size) override
{
return uart_read(_uart, (char*)buffer, size);
}
int availableForWrite(void)
{
return static_cast<int>(uart_tx_free(_uart));
@ -184,6 +196,11 @@ public:
return uart_has_overrun(_uart);
}
bool hasRxError(void)
{
return uart_has_rx_error(_uart);
}
void startDetectBaudrate();
unsigned long testBaudrate();