From 76c12726e85d0bb25d7f015ee6e515ad7084d36d Mon Sep 17 00:00:00 2001
From: jaseg <git-bigdata-wsl-arch@jaseg.de>
Date: Wed, 29 Apr 2020 18:02:57 +0200
Subject: MSP430 reflash working

---
 controller/fw/src/main.c             | 28 ++++++++++++++++++--------
 controller/fw/src/mspdebug_wrapper.c | 39 +++++++++++++++++++-----------------
 2 files changed, 41 insertions(+), 26 deletions(-)

(limited to 'controller/fw/src')

diff --git a/controller/fw/src/main.c b/controller/fw/src/main.c
index aec1fdc..6e117f6 100644
--- a/controller/fw/src/main.c
+++ b/controller/fw/src/main.c
@@ -187,12 +187,23 @@ static struct jtag_img_descriptor {
 } jtag_img = {
     .devmem_img_start = 0x00c000,
     .spiflash_img_start = 0x000000,
-    .img_len = 0x060000,
+    .img_len = 0x004000,
+};
+
+const char fw_dump[0x4000] = {
+#include "EasyMeter_Q3DA1002_V3.03_fw_dump_0xc000.h"
 };
 
 ssize_t jt_spi_flash_read_block(void *usr, int addr, size_t len, uint8_t *out) {
+    /*
     struct jtag_img_descriptor *desc = (struct jtag_img_descriptor *)usr;
     return spif_read(&spif, desc->spiflash_img_start + addr, len, (char *)out);
+    */
+
+    for (size_t i=0; i<len; i++)
+        out[i] = fw_dump[addr - 0xc000 + i];
+
+    return len;
 }
 
 static unsigned int measurement_errors = 0;
@@ -240,15 +251,16 @@ int main(void)
     int i=0;
     while (23) {
         mspd_jtag_init();
-        con_printf("%d flash result: %d\r\n", i,
-            mspd_jtag_flash_and_reset(jtag_img.devmem_img_start, jtag_img.img_len, jt_spi_flash_read_block, &jtag_img));
-        for (int i=0; i<168*1000*5; i++)
+        int rv = mspd_jtag_flash_and_reset(jtag_img.devmem_img_start, jtag_img.img_len, jt_spi_flash_read_block, &jtag_img);
+        con_printf("%d flash result: %d\r\n", i, rv);
+        while (!rv) {}
+        for (int j=0; j<168*1000*5; j++)
             asm volatile ("nop");
         i++;
     }
     while (23) {
         if (adc_fft_buf_ready_idx != -1) {
-            for (int i=0; i<168*1000*2; i++)
+            for (int j=0; j<168*1000*2; j++)
                 asm volatile ("nop");
             GPIOA->BSRR = 1<<11;
             memcpy(adc_fft_buf[!adc_fft_buf_ready_idx], adc_fft_buf[adc_fft_buf_ready_idx] + FMEAS_FFT_LEN/2, sizeof(adc_fft_buf[0][0]) * FMEAS_FFT_LEN/2);
@@ -257,8 +269,8 @@ int main(void)
 
             bool clip_low=false, clip_high=false;
             const int clip_thresh = 100;
-            for (size_t i=FMEAS_FFT_LEN/2; i<FMEAS_FFT_LEN; i++) {
-                int val = adc_fft_buf[adc_fft_buf_ready_idx][i];
+            for (size_t j=FMEAS_FFT_LEN/2; j<FMEAS_FFT_LEN; j++) {
+                int val = adc_fft_buf[adc_fft_buf_ready_idx][j];
                 if (val < clip_thresh)
                     clip_low = true;
                 if (val > FMEAS_ADC_MAX-clip_thresh)
@@ -266,7 +278,7 @@ int main(void)
             }
             GPIOB->ODR = (GPIOB->ODR & ~(3<<11)) | (!clip_low<<11) | (!clip_high<<12);
 
-            for (int i=0; i<168*1000*2; i++)
+            for (int j=0; j<168*1000*2; j++)
                 asm volatile ("nop");
 
             GPIOA->BSRR = 1<<11;
diff --git a/controller/fw/src/mspdebug_wrapper.c b/controller/fw/src/mspdebug_wrapper.c
index aada33a..aaf75ab 100644
--- a/controller/fw/src/mspdebug_wrapper.c
+++ b/controller/fw/src/mspdebug_wrapper.c
@@ -1,6 +1,7 @@
 
 #include <unistd.h>
 #include <errno.h>
+#include <string.h>
 
 #include "output.h"
 #include "jtaglib.h"
@@ -53,6 +54,18 @@ void mspd_jtag_init() {
         gpio_pin_setup(gpios[i].gpio, gpios[i].pin, gpios[i].mode, 3, 0, 0);
 }
 
+static void sr_gpio_write(int num, int out) {
+	if (out)
+        gpios[num].gpio->BSRR = 1<<gpios[num].pin;
+	else
+        gpios[num].gpio->BSRR = 1<<gpios[num].pin<<16;
+}
+
+static void sr_jtdev_rst(struct jtdev *p, int out) {
+	UNUSED(p);
+	sr_gpio_write(SR_GPIO_RST, out);
+}
+
 int mspd_jtag_flash_and_reset(size_t img_start, size_t img_len, ssize_t (*read_block)(void *usr, int addr, size_t len, uint8_t *out), void *usr)
 {
 	union {
@@ -73,18 +86,17 @@ int mspd_jtag_flash_and_reset(size_t img_start, size_t img_len, ssize_t (*read_b
 	if (jtag_id != 0x89 && jtag_id != 0x91)
 		return -EINVAL;
 
-    /* FIXME DEBUG */
-
+#if 0
     con_printf("Memory dump:\r\n");
-    for (size_t i=0; i<256;) {
+    for (size_t i=0x1000; i<=0x10ff;) {
         con_printf("%04x: ", i);
-        for (size_t j=0; j<16; i+=2, j+=2) {
-            con_printf("%04x ", jtag_read_mem(&sr_jtdev, 16, 0xc000 + i));
+        for (size_t j=0; j<16; i+=1, j+=1) {
+            con_printf("%02x ", jtag_read_mem(&sr_jtdev, 8, i));
         }
         con_printf("\r\n");
     }
     return 0;
-    /* END DEBUG */
+#endif
 
 	/* Clear flash */
 	jtag_erase_flash(&sr_jtdev, JTAG_ERASE_MAIN, 0);
@@ -93,6 +105,7 @@ int mspd_jtag_flash_and_reset(size_t img_start, size_t img_len, ssize_t (*read_b
 
 	/* Write flash */
 	for (size_t p = img_start; p < img_start + img_len; p += BLOCK_SIZE) {
+        con_printf("Writing block %04zx\r\n", p);
 		ssize_t nin = read_block(usr, p, BLOCK_SIZE, block.bytes);
 
 		if (nin < 0)
@@ -122,6 +135,8 @@ int mspd_jtag_flash_and_reset(size_t img_start, size_t img_len, ssize_t (*read_b
 	if (sr_jtdev.failed)
 		return -EPIPE;
 
+    jtag_release_device(&sr_jtdev, 0xfffe);
+
 	return 0;
 }
 
@@ -153,13 +168,6 @@ static void sr_jtdev_connect(struct jtdev *p) {
 	/* ignore */
 }
 
-static void sr_gpio_write(int num, int out) {
-	if (out)
-        gpios[num].gpio->BSRR = 1<<gpios[num].pin;
-	else
-        gpios[num].gpio->BSRR = 1<<gpios[num].pin<<16;
-}
-
 static void sr_jtdev_tck(struct jtdev *p, int out) {
 	UNUSED(p);
 	sr_gpio_write(SR_GPIO_TCK, out);
@@ -175,11 +183,6 @@ static void sr_jtdev_tdi(struct jtdev *p, int out) {
 	sr_gpio_write(SR_GPIO_TDI, out);
 }
 
-static void sr_jtdev_rst(struct jtdev *p, int out) {
-	UNUSED(p);
-	sr_gpio_write(SR_GPIO_RST, out);
-}
-
 static void sr_jtdev_tst(struct jtdev *p, int out) {
 	UNUSED(p);
 	sr_gpio_write(SR_GPIO_TST, out);
-- 
cgit