From bbe8caa95f0c67deaef8b76b8a1c1cc7def8871a Mon Sep 17 00:00:00 2001
From: Nathael Pajani <nathael.pajani@ed3l.fr>
Date: Wed, 18 Aug 2021 10:15:28 +0200
Subject: [PATCH] ROM UART test app

---
 rom_uart/Makefile |  12 +++++
 rom_uart/main.c   | 125 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 137 insertions(+)
 create mode 100644 rom_uart/Makefile
 create mode 100644 rom_uart/main.c

diff --git a/rom_uart/Makefile b/rom_uart/Makefile
new file mode 100644
index 0000000..097ff94
--- /dev/null
+++ b/rom_uart/Makefile
@@ -0,0 +1,12 @@
+# Makefile for example apps
+
+MODULE = $(shell basename $(shell cd .. && pwd && cd -))
+NAME = $(shell basename $(CURDIR))
+
+.PHONY: $(NAME).bin
+$(NAME).bin:
+	@make -C ../../.. --no-print-directory NAME=$(NAME) MODULE=$(MODULE) apps/$(MODULE)/$(NAME)/$@
+
+clean mrproper:
+	@make -C ../../.. --no-print-directory $@
+
diff --git a/rom_uart/main.c b/rom_uart/main.c
new file mode 100644
index 0000000..30c788a
--- /dev/null
+++ b/rom_uart/main.c
@@ -0,0 +1,125 @@
+/****************************************************************************
+ *   rom_uart/main.c
+ *
+ * Simple UART example
+ *
+ * Copyright 2020 Nathael Pajani <nathael.pajani@ed3l.fr>
+ *
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ *************************************************************************** */
+
+
+#include "lib/stdint.h"
+#include "core/system.h"
+#include "core/systick.h"
+#include "core/pio.h"
+#include "lib/stdio.h"
+#include "drivers/serial.h"
+#include "drivers/gpio.h"
+#include "drivers/adc.h"
+
+
+#define MODULE_VERSION    0x04
+#define MODULE_NAME "E-Xanh Gardener Sensor"
+
+
+#define SELECTED_FREQ  FREQ_SEL_36MHz
+
+/***************************************************************************** */
+/* Pins configuration */
+/* pins blocks are passed to set_pins() for pins configuration.
+ * Unused pin blocks can be removed safely with the corresponding set_pins() call
+ * All pins blocks may be safelly merged in a single block for single set_pins() call..
+ */
+const struct pio_config common_pins[] = {
+	/* UART 0 */
+	{ LPC_GPIO_0_0, LPC_UART0_RX, 0 },
+	{ LPC_GPIO_0_4, LPC_UART0_TX, 0 },
+	/* ADC */
+	{ LPC_ADC_AD9_PIO_0_17, LPC_FIXED, 0 },
+	{ LPC_ADC_AD10_PIO_0_13, LPC_FIXED, 0 },
+	ARRAY_LAST_PIO,
+};
+
+
+/***************************************************************************** */
+/* This will display the integer value read on the ADC, between 0 and 1024.
+ * ADC must be initialised prior to calls to adc_display() (it means that adc_on()
+ *    must be called before using this function.
+ * adc_num is an ADC channel number (integer between 0 and 7)
+ *    use LPC_ADC(x) for channel selection.
+ * returns ADC convertion value or negative value on error.
+ */
+int adc_display(int adc_num, int uart_num)
+{
+	uint16_t val = 0;
+	int ret = 0;
+
+	ret = adc_get_value(&val, adc_num);
+	if (ret < 0) {
+		return ret;
+	} else {
+		uprintf(uart_num, "ADC(%d): %d (raw: 0x%04x, ret: %d)\n", adc_num, val, val, ret);
+	}
+	return val;
+}
+
+/***************************************************************************** */
+void system_init()
+{
+	system_set_default_power_state();
+	clock_config(SELECTED_FREQ);
+	set_pins(common_pins);
+	gpio_on();
+	/* System tick timer MUST be configured and running in order to use the sleeping
+	 * functions */
+	systick_timer_on(1); /* 1ms */
+	systick_start();
+}
+
+/* Define our fault handler. */
+void fault_info(const char* name, uint32_t len)
+{
+	uprintf(UART0, name);
+	while (1);
+}
+
+
+
+/***************************************************************************** */
+int main(void)
+{
+	system_init();
+	uart_on(UART0, 115200, NULL);
+
+	/* ADC Setup */
+	adc_on(NULL);
+	adc_prepare_conversion_on_event((ADC_MCH(9) | ADC_MCH(10)),
+									LPC_ADC_START_CONV_SOFT, LPC_ADC_SEQA, 0, 0);
+
+
+	while (1) {
+		/* ADC Test */
+		adc_trigger_sequence_conversion(LPC_ADC_SEQA);
+		msleep(10);
+		adc_display(LPC_ADC(9), UART0);
+		adc_display(LPC_ADC(10), UART0);
+	}
+	return 0;
+}
+
+
+
-- 
2.43.0