arduino/esp8266
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Merge branch 'Links2004-esp8266' into esp8266

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* Links2004-esp8266:
  add hexdump function for easy debugging.
  add some notes to the SPI functions (aligned to 32Bit)  - Fatal exception (9)
This commit is contained in:
Ivan Grokhotkov 2015-05-14 02:35:03 +03:00
commit b330cb794a
3 changed files with 48 additions and 0 deletions
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3
cores/esp8266/Arduino.h
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@ -229,6 +229,9 @@ long random(long, long);
void randomSeed(unsigned int);
long map(long, long, long, long, long);
// Debugging functions
void hexdump(uint8_t *mem, uint32_t len, uint8_t cols = 16);
#endif
#include "pins_arduino.h"

21
cores/esp8266/debug.cpp Normal file
View File

@ -0,0 +1,21 @@
/*
* debug.c
*
* Created on: 13.05.2015
* Author: Markus Sattler
*/
#include "Arduino.h"
void ICACHE_RAM_ATTR hexdump(uint8_t *mem, uint32_t len, uint8_t cols) {
os_printf("\n[HEXDUMP] Address: 0x%08X len: 0x%X (%d)", mem, len, len);
for(uint32_t i = 0; i < len; i++) {
if(i % cols == 0) {
os_printf("\n[0x%08X] 0x%08X: ", mem, i);
}
os_printf("%02X ", *mem);
mem++;
}
os_printf("\n");
}

24
libraries/SPI/SPI.cpp
View File

@ -308,6 +308,13 @@ void SPIClass::write32(uint32_t data, bool msb) {
while(SPI1CMD & SPIBUSY) {}
}
/**
* Note:
* data need to be aligned to 32Bit
* or you get an Fatal exception (9)
* @param data uint8_t *
* @param size uint32_t
*/
void SPIClass::writeBytes(uint8_t * data, uint32_t size) {
while(size) {
if(size > 64) {
@ -340,6 +347,15 @@ void SPIClass::writeBytes_(uint8_t * data, uint8_t size) {
while(SPI1CMD & SPIBUSY) {}
}
/**
* Note:
* data need to be aligned to 32Bit
* or you get an Fatal exception (9)
* @param data uint8_t *
* @param size uint8_t max for size is 64Byte
* @param repeat uint32_t
*/
void SPIClass::writePattern(uint8_t * data, uint8_t size, uint32_t repeat) {
if(size > 64) return; //max Hardware FIFO
@ -376,6 +392,14 @@ void SPIClass::writePattern_(uint8_t * data, uint8_t size, uint8_t repeat) {
writeBytes(&buffer[0], bytes);
}
/**
* Note:
* in and out need to be aligned to 32Bit
* or you get an Fatal exception (9)
* @param out uint8_t *
* @param in uint8_t *
* @param size uint32_t
*/
void SPIClass::transferBytes(uint8_t * out, uint8_t * in, uint32_t size) {
while(size) {
if(size > 64) {