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Mis SLCD-related cleanup, documentation, bugfixes

This commit is contained in:
Gregory Nutt 2013-05-26 12:42:22 -06:00
parent 5049717590
commit 47ed1cf8c4
4 changed files with 17 additions and 13 deletions
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14
nuttx/configs/pcblogic-pic32mx/README.txt
View File

@ -340,7 +340,7 @@ LCD1602
1. Vss --> Powerpoint GND
2. Vdd --> Powerpoint USB+5V
3. Vee N/C To ground via 10K potentiometer
4 AN15/OCFB/PMALL/PMA0/CN12/RB15 4. RS 4 PMA0, Selects registers
44 AN15/OCFB/PMALL/PMA0/CN12/RB15 4. RS 4 PMA0, Selects registers
82 PMRD/CN14/RD5 5. RW 82 PMRD/PMWR, Selects read or write
81 OC5/PMWR/CN13/RD4 6. E 81 PMENB, Starts data read/write
93 PMD0/RE0 7. D0 93 PMD0
@ -669,8 +669,10 @@ Configuration sub-directories
CONFIG_DEBUG=y : Enable debug features
CONFIG_DEBUG_VERBOSE=y : Enable LCD debug
NOTE: At this point in time, testing of the SLCD is very limited because
there is not much in apps/examples/slcd. Certainly there are more bugs
to be found. But there is a basically functional driver with a working
test setup that can be extended if you want a fully functional LCD1602
driver.
NOTES:
a. I do not have the LCD1602 working. I may just be getting lost in the
tangle of wires or perhaps there is something fundamentally wrong with
the code.
b. At this point in time, testing of the SLCD is very limited because
there is not much in apps/examples/slcd. Basically driver with a working
test setup and ready to be tested and debugged.

2
nuttx/configs/pcblogic-pic32mx/src/pic32mx_lcd1602.c
View File

@ -46,7 +46,7 @@
* 1. Vss --> Powerpoint GND
* 2. Vdd --> Powerpoint USB+5V
* 3. Vee N/C To ground via 10K potentiometer
* 4 AN15/OCFB/PMALL/PMA0/CN12/RB15 4. RS 4 PMA0, Selects registers
* 44 AN15/OCFB/PMALL/PMA0/CN12/RB15 4. RS 4 PMA0, Selects registers
* 82 PMRD/CN14/RD5 5. RW 82 PMRD/PMWR, Selects read or write
* 81 OC5/PMWR/CN13/RD4 6. E 81 PMENB, Starts data read/write
* 93 PMD0/RE0 7. D0 93 PMD0

12
nuttx/configs/stm32ldiscovery/README.txt
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@ -788,13 +788,13 @@ Configuration sub-directories
4. To enable SLCD support:
Board Selection:
CONFIG_ARCH_LEDS=n : Disable LED support
CONFIG_ARCH_LEDS=n : Disable board LED support
Library Routines:
CONFIG_LIB_SLCDCODEC=y : Enable the SLCD CODEC
System Type:
CONFIG_STM32_LCD=y : Enable the SLCD
System Type -> STM32 Peripheral Support:
CONFIG_STM32_LCD=y : Enable the Segment LCD
When the LCD is enabled and the LEDs are disabled, the USART1
serial console will automaticall move to PB6 and PB7 (you will get
@ -811,9 +811,11 @@ Configuration sub-directories
CONFIG_BINFMT_DISABLE=n : Don't disable binary support
CONFIG_BUILTIN=y : Enable support for built-in binaries
Application Configuration:
Application Configuration -> NSH Library:
CONFIG_NSH_BUILTIN_APPS=y : Enable builtin apps in NSH
CONFIG_NSH_ARCHINIT=y : Needed to initialize the SLCD
Application Configuration -> Examples:
CONFIG_EXAMPLES_SLCD=y : Enable apps/examples/slcd
To enable LCD debug output:
@ -821,7 +823,7 @@ Configuration sub-directories
Device Drivers:
CONFIG_LCD=y : (Needed to enable LCD debug)
Build Setup:
Build Setup -> Debug Options:
CONFIG_DEBUG=y : Enable debug features
CONFIG_DEBUG_VERBOSE=y : Enable LCD debug

2
nuttx/configs/stm32ldiscovery/src/stm32_lcd.c
View File

@ -935,7 +935,7 @@ static void slcd_action(enum slcdcode_e code, uint8_t count)
* number of characters to move.
*/
nchars = SLCD_CHARS - g_slcdstate.curpos;
nchars = SLCD_NCHARS - g_slcdstate.curpos;
nmove = MIN(nchars, count) - 1;
/* Move all characters after the current cursor position left by 'nmove' characters */