diff options
| -rw-r--r-- | apps/systemcmds/eeprom/24xxxx_mtd.c | 27 | ||||
| -rw-r--r-- | apps/systemcmds/eeprom/eeprom.c | 13 | ||||
| -rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_i2c.c | 10 | ||||
| -rwxr-xr-x | nuttx/configs/px4fmu/nsh/defconfig | 18 |
4 files changed, 56 insertions, 12 deletions
diff --git a/apps/systemcmds/eeprom/24xxxx_mtd.c b/apps/systemcmds/eeprom/24xxxx_mtd.c index 781b01065..e34be44e3 100644 --- a/apps/systemcmds/eeprom/24xxxx_mtd.c +++ b/apps/systemcmds/eeprom/24xxxx_mtd.c @@ -163,6 +163,8 @@ static ssize_t at24c_bwrite(FAR struct mtd_dev_s *dev, off_t startblock, size_t nblocks, FAR const uint8_t *buf); static int at24c_ioctl(FAR struct mtd_dev_s *dev, int cmd, unsigned long arg); +void at24c_test(void); + /************************************************************************************ * Private Data ************************************************************************************/ @@ -219,6 +221,31 @@ static int at24c_erase(FAR struct mtd_dev_s *dev, off_t startblock, size_t nbloc } /************************************************************************************ + * Name: at24c_test + ************************************************************************************/ + +void at24c_test(void) +{ + uint8_t buf[CONFIG_AT24XX_MTD_BLOCKSIZE]; + unsigned count = 0; + unsigned errors = 0; + + for (count = 0; count < 10000; count++) { + ssize_t result = at24c_bread(&g_at24c.mtd, 0, 1, buf); + if (result == ERROR) { + if (errors++ > 2) { + vdbg("too many errors\n"); + return; + } + } else if (result != 1) { + vdbg("unexpected %u\n", result); + } + if ((count % 100) == 0) + vdbg("test %u errors %u\n", count, errors); + } +} + +/************************************************************************************ * Name: at24c_bread ************************************************************************************/ diff --git a/apps/systemcmds/eeprom/eeprom.c b/apps/systemcmds/eeprom/eeprom.c index b4257cda9..49da51358 100644 --- a/apps/systemcmds/eeprom/eeprom.c +++ b/apps/systemcmds/eeprom/eeprom.c @@ -73,6 +73,7 @@ static void eeprom_erase(void); static void eeprom_ioctl(unsigned operation); static void eeprom_save(const char *name); static void eeprom_load(const char *name); +static void eeprom_test(void); static bool attached = false; static bool started = false; @@ -93,6 +94,9 @@ int eeprom_main(int argc, char *argv[]) if (!strcmp(argv[1], "erase")) eeprom_erase(); + if (!strcmp(argv[1], "test")) + eeprom_test(); + if (0) { /* these actually require a file on the filesystem... */ if (!strcmp(argv[1], "reformat")) @@ -250,3 +254,12 @@ eeprom_load(const char *name) exit(0); } + +extern void at24c_test(void); + +static void +eeprom_test(void) +{ + at24c_test(); + exit(0); +} diff --git a/nuttx/arch/arm/src/stm32/stm32_i2c.c b/nuttx/arch/arm/src/stm32/stm32_i2c.c index fd682cd5d..10e6cac65 100644 --- a/nuttx/arch/arm/src/stm32/stm32_i2c.c +++ b/nuttx/arch/arm/src/stm32/stm32_i2c.c @@ -1245,11 +1245,11 @@ static int stm32_i2c_isr(struct stm32_i2c_priv_s *priv) /* Disable acknowledge when last byte is to be received */ + priv->dcnt--; if (priv->dcnt == 1) { stm32_i2c_modifyreg(priv, STM32_I2C_CR1_OFFSET, I2C_CR1_ACK, 0); } - priv->dcnt--; #ifdef CONFIG_I2C_POLLED irqrestore(state); @@ -1985,7 +1985,6 @@ int up_i2creset(FAR struct i2c_dev_s * dev) uint32_t scl_gpio; uint32_t sda_gpio; int ret = ERROR; - irqstate_t state; ASSERT(dev); @@ -2010,6 +2009,9 @@ int up_i2creset(FAR struct i2c_dev_s * dev) scl_gpio = MKI2C_OUTPUT(priv->config->scl_pin); sda_gpio = MKI2C_OUTPUT(priv->config->sda_pin); + /* Let SDA go high */ + stm32_gpiowrite(sda_gpio, 1); + /* Clock the bus until any slaves currently driving it let it go. */ clock_count = 0; @@ -2017,7 +2019,7 @@ int up_i2creset(FAR struct i2c_dev_s * dev) { /* Give up if we have tried too hard */ - if (clock_count++ > 1000) + if (clock_count++ > 10) { goto out; } @@ -2032,7 +2034,7 @@ int up_i2creset(FAR struct i2c_dev_s * dev) { /* Give up if we have tried too hard */ - if (stretch_count++ > 1000) + if (stretch_count++ > 10) { goto out; } diff --git a/nuttx/configs/px4fmu/nsh/defconfig b/nuttx/configs/px4fmu/nsh/defconfig index 8a76f0e05..7bb4d1003 100755 --- a/nuttx/configs/px4fmu/nsh/defconfig +++ b/nuttx/configs/px4fmu/nsh/defconfig @@ -352,17 +352,19 @@ CONFIG_CAN2_BAUD=700000 # I2C configuration # CONFIG_I2C=y -#CONFIG_I2C_POLLED=y +CONFIG_I2C_POLLED=y CONFIG_I2C_TRANSFER=y CONFIG_I2C_TRACE=n CONFIG_I2C_RESET=y -# Allow 180 us per byte, a wide margin for the 400 KHz clock we're using -# e.g. 9.6 ms for an EEPROM page write, 0.9 ms for a MAG update -CONFIG_STM32_I2CTIMEOUS_PER_BYTE=200 -# Constant overhead for generating I2C start / stop conditions -CONFIG_STM32_I2CTIMEOUS_START_STOP=700 -# XXX this is bad and we want it gone -CONFIG_I2C_WRITEREAD=y + +# Dynamic timeout +#CONFIG_STM32_I2C_DYNTIMEO=y +#CONFIG_STM32_I2C_DYNTIMEO_STARTSTOP=500 +#CONFIG_STM32_I2C_DYNTIMEO_USECPERBYTE=200 + +# Fixed per-transaction timeout +CONFIG_STM32_I2CTIMEOSEC=0 +CONFIG_STM32_I2CTIMEOMS=10 # # General build options |