diff options
| -rw-r--r-- | LiquidCrystal.c | 10 | ||||
| -rw-r--r-- | LiquidCrystal.h | 3 | ||||
| -rw-r--r-- | main.c | 56 | ||||
| -rw-r--r-- | nrf51.md | 4 |
4 files changed, 60 insertions, 13 deletions
diff --git a/LiquidCrystal.c b/LiquidCrystal.c index eed30c8..3411ea8 100644 --- a/LiquidCrystal.c +++ b/LiquidCrystal.c @@ -53,7 +53,9 @@ static void write_value(uint8_t value, bool is_data, uint32_t delay) { write_4(value >> 4); write_4(value); - nrf_delay_us(delay); + // something is going too fast. have to investigate. +// nrf_delay_us(delay); + nrf_delay_ms(delay); } void liquid_crystal_write_char(char chr) { @@ -66,6 +68,12 @@ void liquid_crystal_write_string(char *chr) { } } +void liquid_crystal_write_string_len(char *chr, size_t max_len) { + for (; *chr != '\0' && max_len > 0; chr++, max_len--) { + liquid_crystal_write_char(*chr); + } +} + void liquid_crystal_clear() { // The documentation doesn't specify a value, but everything else is 37us write_value(LIQUID_CRYSTAL_CMD_CLEAR, false, 50); diff --git a/LiquidCrystal.h b/LiquidCrystal.h index dd28fc9..d995504 100644 --- a/LiquidCrystal.h +++ b/LiquidCrystal.h @@ -7,6 +7,7 @@ #include <stdint.h> #include <stdbool.h> +#include <unistd.h> void liquid_crystal_init(bool data_length, bool two_line, bool many_dots); @@ -26,4 +27,6 @@ void liquid_crystal_write_char(char chr); void liquid_crystal_write_string(char *chr); +void liquid_crystal_write_string_len(char *chr, size_t max_len); + #endif @@ -40,14 +40,12 @@ #include "boards.h" #include "ble_sensorsim.h" #include "softdevice_handler.h" -#include "app_timer.h" #include "device_manager.h" #include "pstorage.h" #include "app_error.h" #include "app_trace.h" #include "app_timer.h" #include "app_gpiote.h" -#include "app_timer.h" #include "bsp.h" #include "phone_remote.h" @@ -121,6 +119,22 @@ static void hello_timer_handler(void* data) seconds++; printf("hello world, seconds=%" PRIu32 ", ticks=%" PRIu32 ", ms=%" PRIu32 "\r\n", seconds, ticks, ms); + +// liquid_crystal_clear(); + +// char buf0[8]; +// + liquid_crystal_set_cursor(0, 1); + uint32_t value = 1337; + app_timer_cnt_get(&value); + char buf1[9]; +// snprintf(buf1, sizeof(buf1), "%" PRIu32, value); + int size = snprintf(buf1, sizeof(buf1), "%" PRIu32, seconds); +// liquid_crystal_write_string("hello!"); + liquid_crystal_write_string_len(buf1, size); +// liquid_crystal_write_string(buf1); + buf1[8] = '\0'; + printf("buf: %s\r\n", buf1); } static void timers_init(void) @@ -410,18 +424,13 @@ int main(void) uint32_t err_code = bsp_init(BSP_INIT_LED | BSP_INIT_BUTTONS, APP_TIMER_TICKS(100, APP_TIMER_PRESCALER), NULL); APP_ERROR_CHECK(err_code); - device_manager_init(); - gap_params_init(); - advertising_init(); - services_init(); - conn_params_init(); - - timers_start(); - liquid_crystal_init(false, true, false); liquid_crystal_reset(); + + /* liquid_crystal_display(true, false, false); liquid_crystal_write_string("01234567890123456"); + */ /* char chars[] = "abcdefghijklmopqrstuvwxyz"; @@ -431,14 +440,39 @@ int main(void) } nrf_delay_ms(1000); -*/ liquid_crystal_clear(); +*/ + + liquid_crystal_display(true, false, false); + nrf_delay_ms(500); + + liquid_crystal_display(false, false, false); + nrf_delay_ms(500); + + liquid_crystal_display(true, false, false); + nrf_delay_ms(500); + + liquid_crystal_display(false, false, false); + nrf_delay_ms(500); + + liquid_crystal_display(true, true, true); + nrf_delay_ms(500); // liquid_crystal_return_home(); liquid_crystal_set_cursor(1, 1); liquid_crystal_write_string("hello!"); + /* + device_manager_init(); + gap_params_init(); + advertising_init(); + services_init(); + conn_params_init(); + advertising_start(); + */ + + timers_start(); for (;; ) { @@ -43,7 +43,9 @@ Device | Size | Start | End | Size | Start | End # Debugging - screen /dev/ttyACM0 115200,-ixon,-ixoff +When using the nRF51-DK or the dongle you'll talk to the nRF chip through the Segger chip. It will only listen for traffic when a terminal is connected to /dev/ttyACM0. The terminal must use the DTR (data terminal ready) signal for the Segger to disable the tristating of the uart pins and start listening. + + screen /dev/ttyACM0 115200,ixon,ixoff ## GDB |