From 2f86b533af3ca4aa813160476764dc7098a14c2d Mon Sep 17 00:00:00 2001
From: Peter Wittich <wittich@cornell.edu>
Date: Mon, 13 Jan 2025 11:27:45 -0500
Subject: [PATCH] interrupts, etc for ADCs

---
 projects/prod_test/ADCMonitorTask.c  |  2 +-
 projects/prod_test/CommandLineTask.c |  2 +-
 projects/prod_test/commands.c        |  2 +-
 projects/prod_test/prod_test.c       | 22 ++++++++++++++++++++++
 4 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/projects/prod_test/ADCMonitorTask.c b/projects/prod_test/ADCMonitorTask.c
index 7c517a22..397bfc54 100644
--- a/projects/prod_test/ADCMonitorTask.c
+++ b/projects/prod_test/ADCMonitorTask.c
@@ -201,7 +201,7 @@ static void initADC0SecondSequence(void)
 }
 extern TaskHandle_t TaskNotifyADC;
 // ADC monitoring task.
-void ADCMonitorTask(void *parameters)
+void ADCMonitorTask(void *pvParameters)
 {
   // initialize to the current tick time
   TickType_t xLastWakeTime = xTaskGetTickCount();
diff --git a/projects/prod_test/CommandLineTask.c b/projects/prod_test/CommandLineTask.c
index 6f569adb..b71b3bb6 100644
--- a/projects/prod_test/CommandLineTask.c
+++ b/projects/prod_test/CommandLineTask.c
@@ -58,7 +58,7 @@ BaseType_t help_command_fcn(int argc, char **argv, char *m)
       if (left < len) {
         return pdTRUE;
       }
-      copied += snprintf(m + copied, SCRATCH_SIZE - copied, "%s:\r\n %s",
+      copied += snprintf(m + copied, SCRATCH_SIZE - copied, "%s:\r\n %s\r\n",
                          commands[i].commandstr, commands[i].helpstr);
     }
     i = 0;
diff --git a/projects/prod_test/commands.c b/projects/prod_test/commands.c
index 557812fd..182df5ac 100644
--- a/projects/prod_test/commands.c
+++ b/projects/prod_test/commands.c
@@ -100,7 +100,7 @@ BaseType_t power_off_ctl(int argc, char **argv, char *m)
 {
   disable_ps();
   snprintf(m, SCRATCH_SIZE, "Power off\r\n");
-  return pdTRUE;
+  return pdFALSE;
 }
 
 // direct copy paste from other project?
diff --git a/projects/prod_test/prod_test.c b/projects/prod_test/prod_test.c
index dd1e6165..4a982acd 100644
--- a/projects/prod_test/prod_test.c
+++ b/projects/prod_test/prod_test.c
@@ -9,6 +9,7 @@
 #include "driverlib/sysctl.h"
 #include "driverlib/rom.h"
 #include "driverlib/rom_map.h"
+#include "driverlib/adc.h"
 #include "inc/hw_ints.h"
 
 // local includes
@@ -30,6 +31,7 @@
 
 SemaphoreHandle_t xUARTMutex = 0;
 void vCommandLineTask(void *pvParameters);
+void ADCMonitorTask(void *pvParameters);
 
 //*****************************************************************************
 //
@@ -57,6 +59,25 @@ void SystemInit(void)
   // initialize all pins, using file setup by TI PINMUX tool
   PinoutSet();
 
+  // ADC
+  // initialize the ADCs.
+  ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
+  ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC1);
+  // Set the reference to external
+  ROM_ADCReferenceSet(ADC0_BASE, ADC_REF_EXT_3V);
+  ROM_ADCReferenceSet(ADC1_BASE, ADC_REF_EXT_3V);
+  ROM_ADCIntEnable(ADC0_BASE, 1); // enable interrupt for sequence 1
+  ROM_ADCIntEnable(ADC1_BASE, 0); // enable interrupt for sequence 0
+  // clear the interrupts
+  ROM_ADCIntClear(ADC0_BASE, 1);
+  ROM_ADCIntClear(ADC1_BASE, 0);
+  // FreeRTOS insists that the priority of interrupts be set up like this.
+  ROM_IntPrioritySet(INT_ADC0SS1, configKERNEL_INTERRUPT_PRIORITY);
+  ROM_IntPrioritySet(INT_ADC1SS0, configKERNEL_INTERRUPT_PRIORITY);
+
+  ROM_IntEnable(INT_ADC0SS1);
+  ROM_IntEnable(INT_ADC1SS0);
+
   // initialize interrupts
   UART0Init(g_ui32SysClock); // ZYNQ UART
   initI2C1(g_ui32SysClock);  // controller for power supplies
@@ -125,6 +146,7 @@ __attribute__((noreturn)) int main(void)
   xUARTMutex = xSemaphoreCreateMutex();
 
   xTaskCreate(vCommandLineTask, "CLIZY", 512, &cli_uart, tskIDLE_PRIORITY + 4, NULL);
+  xTaskCreate(ADCMonitorTask, "ADC", configMINIMAL_STACK_SIZE, NULL, tskIDLE_PRIORITY + 4, NULL);
 
   Print("\r\n----------------------------\r\n");
   Print("Staring Apollo CM MCU Production Test firmware ");