jtagonizer

commit 195f16c41bd0a1ad1445d1388e49372a18ca1372
parent 41830b1ba03bee21a6753a340e6e8e448d3a8b06
Author: Brian Swetland <swetland@frotz.net>
Date:   Sun, 25 Nov 2018 10:05:03 -0800

readme: update a bit

Diffstat:
M
README
 | 
9
++++++---
M
jtag.h
 | 
2
++
M
zynq.c
 | 
2
++

3 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/README b/README
@@ -12,8 +12,11 @@ zynq reset            - reboot the chip
 zynq regs             - briefly stop both CPUs and report their state
 zynq run <image>      - halt CPU0, download image to 0 (OCR), resume pc=0
 
-fpga - Xilinx 7-Series FPGA downloader
+zynq - Xilinx 7-Series FPGA downloader
 --------------------------------------
-fpga                  - print the status register
-fpga <bitfile>        - reset part and download bitfile
+zynq fpga <bitfile>   - reset part and download bitfile
 
+debug - JTAG debug register tool (check debug.c comments)
+---------------------------------------------------------
+debug write <addr> <val>
+debug read <addr>
diff --git a/jtag.h b/jtag.h
@@ -93,6 +93,8 @@ typedef struct {
 // returns number of devices detected, negative on error
 int jtag_enumerate(JTAG *jtag);
 
+void jtag_print_chain(JTAG *jtag);
+
 // get information about the nth device on the chain
 JTAG_INFO *jtag_get_nth_device(JTAG *jtag, int n);
 
diff --git a/zynq.c b/zynq.c
@@ -72,6 +72,8 @@ int main(int argc, char **argv) {
 	}
 
 	if (jtag_mpsse_open(&jtag)) return -1;
+	jtag_enumerate(jtag);
+	jtag_print_chain(jtag);
 
 	if (!strcmp(argv[1], "fpga")) {
 		if (argc != 3) {