Add additional debug info to version command and add CPU cycle counter to cc instruction's output

stm-firmware/include/stm-periph/unique-id.h

@@ -33,4 +33,6 @@ void stm_unique_id_get(uint32_t *high, uint32_t *mid, uint32_t *low);
 
 void stm_dev_rev_id_get(uint32_t *device_id, uint32_t *revision_id);
 
+void stm_cpuid_get(uint8_t *implementer, uint8_t *variant, uint16_t *part_no, uint8_t *rev);
+
 #endif /* __UNIQUE_ID_H__ */

stm-firmware/stm-periph/unique-id.c

@@ -43,3 +43,23 @@ void stm_dev_rev_id_get(uint32_t *device_id, uint32_t *revision_id)
 	if (revision_id)
 		*revision_id = (DBGMCU->IDCODE & DBGMCU_IDCODE_REV_ID) >> 16;
 }
+
+void stm_cpuid_get(uint8_t *implementer, uint8_t *variant, uint16_t *part_no, uint8_t *rev)
+{
+	uint32_t cpuid;
+
+	cpuid = SCB->CPUID;
+
+	if (implementer) {
+		*implementer = (uint8_t)((cpuid >> 24) & 0xFFU);
+	}
+	if (variant) {
+		*variant = (uint8_t)((cpuid >> 20) & 0x0FU);
+	}
+	if (part_no) {
+		*part_no = (uint16_t)((cpuid >> 4) & 0x0FFFU);
+	}
+	if (rev) {
+		*rev = (uint8_t)(cpuid & 0x0FU);
+	}
+}

stm-firmware/ui/shell.c

@@ -70,6 +70,10 @@ static shellmatta_retCode_t shell_cmd_ver(const shellmatta_handle_t   handle,
 	uint32_t high_id;
 	uint32_t stm_rev_id;
 	uint32_t stm_dev_id;
+	uint8_t core_rev;
+	uint8_t core_implementer;
+	uint8_t core_variant;
+	uint16_t core_part_no;
 	const char *hw_rev_str;
 	enum hw_revision pcb_rev;
 
@@ -100,6 +104,12 @@ static shellmatta_retCode_t shell_cmd_ver(const shellmatta_handle_t   handle,
 	shellmatta_printf(handle, "STM Device ID: 0x%04X\r\n", stm_dev_id);
 	shellmatta_printf(handle, "STM Revision ID: 0x%04X\r\n", stm_rev_id);
 
+	stm_cpuid_get(&core_implementer, &core_variant, &core_part_no, &core_rev);
+	shellmatta_printf(handle, "CPU Implementer: 0x%02X\r\n", (unsigned int)core_implementer);
+	shellmatta_printf(handle, "CPU Variant: 0x%02X\r\n", (unsigned int)core_variant);
+	shellmatta_printf(handle, "CPU Part No.: 0x%04X\r\n", (unsigned int)core_part_no);
+	shellmatta_printf(handle, "CPU Revision: 0x%02X\r\n", (unsigned int)core_rev);
+
 	return SHELLMATTA_OK;
 }
 
@@ -849,6 +859,7 @@ shellmatta_retCode_t shell_cmd_execute(const shellmatta_handle_t handle, const c
 shellmatta_retCode_t shell_cmd_cycle_count(const shellmatta_handle_t handle, const char *args, uint32_t len)
 {
 	uint64_t counter;
+	uint32_t core_cycle_count;
 	(void)args;
 	(void)len;
 	char option;
@@ -856,8 +867,10 @@ shellmatta_retCode_t shell_cmd_cycle_count(const shellmatta_handle_t handle, con
 	uint32_t arg_len;
 	int opt_stat;
 	bool clear = false;
+	bool hex = false;
 	const shellmatta_opt_long_t options[] = {
 		{"clear", 'c', SHELLMATTA_OPT_ARG_NONE},
+		{"hex", 'h', SHELLMATTA_OPT_ARG_NONE},
 		{NULL, '\0', SHELLMATTA_OPT_ARG_NONE},
 	};
 
@@ -869,6 +882,8 @@ shellmatta_retCode_t shell_cmd_cycle_count(const shellmatta_handle_t handle, con
 		case 'c':
 			clear = true;
 			break;
+		case 'h':
+			hex = true;
 		default:
 			break;
 		}
@@ -876,10 +891,18 @@ shellmatta_retCode_t shell_cmd_cycle_count(const shellmatta_handle_t handle, con
 
 
 	counter = main_cycle_counter_get();
-	shellmatta_printf(handle, "%"PRIu64"\r\n", counter);
+	core_cycle_count = DWT->CYCCNT;
-	if (clear)
+	if (hex) {
+		shellmatta_printf(handle, "Main loop: 0x%016"PRIX64"\r\n", counter);
+		shellmatta_printf(handle, "CPU cycles: 0x%08"PRIX32"\r\n", core_cycle_count);
+	} else {
+		shellmatta_printf(handle, "Main loop: %"PRIu64"\r\n", counter);
+		shellmatta_printf(handle, "CPU cycles: %"PRIu32"\r\n", core_cycle_count);
+	}
+	if (clear) {
 		main_cycle_counter_init();
-
+		DWT->CYCCNT = 0UL;
+	}
 	return SHELLMATTA_OK;
 }